What is a ligand? what do ligands have to do with receptor-mediated endocytosis?

Answers

Answer 1
In biochemistry, aligand is a substance that forms a complex with a biomolecule to serve abiological purpose. In protein-ligandbinding, the ligand is usually a molecule which produces a signal by binding to a site on a target protein.

Receptor mediated endocytosis is an endocytotic mechanism in which specific molecules are ingested into the cell. The specificity results from a receptor-ligand interaction. Receptors on the plasma membrane of the target tissue will specifically bind to ligands on the outside of the cell. An endocytotic process occurs and the ligand is ingested.

A very well studied example of receptor mediated endocytosis involves the metabolism of cholesterol.


Related Questions

Anjuli performed an experiment to determine the respiration rate of yeast. She determined this by measuring the amount of carbon dioxide (CO2) that was produced. Then, she created the following graph. mc017-1.jpg Her teacher suggested that she redraw her graph as a line graph. Why should she redraw the graph? A line graph looks better in a scientific report. She was measuring a rate of change. She had graphed the wrong relationship. Her experiment had many different variables.

Answers

She was measuring a rate of change is probably the correct answer once the graph is not shown.

A rate of change in this case would refer to the speed at which the respiration is happening over the measured period of time. Graphically, is the slope of a line and that is why is easier to gather conclusions from a line graph instead of any other type.

The right answer is She was measuring a rate of change.

Yeasts use respiration in an aerobic environment (presence of oxygen). This metabolism is used to produce molecules of ATP (adenosine triphosphate), a source of energy in the cell. Cellular respiration takes place in 3 main stages: glycolysis, Krebs cycle and the electron transport chain, linked to oxidative phosphorylation.

The balance equation of cellular respiration is:

6 O2 + C6H12O6 ==> 6 H2O + 36 ATP + 6 CO2

The rate of change makes it possible to study, as a percentage, the evolution of the value of a variable over a given period. For that, it is necessary to calculate the absolute variation, that is to say to make the difference between the value of arrival and the starting value, that one divides by the starting value, the whole multiplied by 100.

What are the nurse's responsibilities regarding a living will?

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Hello!

A living will is a legal document that the patient has written of instructions they would like the nurse to follow when it is their time to pass away. For example, if they die and their will says to allow a museum to take his brain, the nurse must allow this since it is written in a legal document. Or they could write if they are for sure going to die then they just want them to pull the plug. Or if they are on life support to pull the plug and let them pass. These are instructions the nurse must follow as it is a legal dying wish document.

I hope this was of some help to you!

I am, yours most sincerely,
SuperHelperThingy

Relaxation exercises, recommended for stress management, produce a very relaxed, though still awake state, characterized by __________ waves.

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Alpha waves can be defined as the relaxation exercises, recommendation for stress management, produce a very relaxed, through still awake state. Alpha waves in the brains is also called as Berger's wave in the memory of the founder of EEG, and it is also a type of brain waves detected by either EEG or MEG.

A number of systems for pumping ions across membranes are powered by atp. such atp-powered pumps are often called atpases, although they do not often hydrolyze atp unless they are simultaneously transporting ions. because small increases in calcium ions in the cytosol can trigger a number of different intracellular reactions, cells keep the cytosolic calcium concentration quite low under normal conditions, using atp-powered calcium pumps. for example, muscle cells transport calcium from the cytosol into the membranous system called the sarcoplasmic reticulum (sr). if a resting muscle cell's cytosol has a free calcium ion concentration of 10-7 while the concentration in the sr is 10-2, then how is the atpase acting?

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gorter and grendel more rigid protein fluid phospholipids phospholipids and proteins hydrophobic weakest fluid more drops laterally increasing unsaturated amphipathic hydrophobic integral proteins kink(s) adjacent transmembrane cell to cell recognition cell to cell recognition (much) higher transmembrane protein peripheral proteins natural selection weak hydrophobic small (and) hydrophobic specificity molecule diffusion co2 isotonic hypotoniccotransport cotransport facilitated diffusion isotonic higher a b decrease lower decrease catabolismconsume build up created destroyed energy environment growing increase decrease entropy of the universe the universe

A nurse is caring for a client who recently underwent a total hip replacement. the nurse should:

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GO TO THE DOCTOR FOR HELP

Which mutation is harmful to the organism? a mutation allowing moths to camouflage better on blackened tree bark a mutation making Staphylococcus aureus resistant to the antibiotic methicillin: a. mutation inhibiting human immunodeficiency virus from attaching to and entering the cell b.mutation causing uncontrolled cell division a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

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Mutation causing uncontrolled cell division is the correct answer.

Mutation causing uncontrolled cell division.

Here the mutation will cause cancer.Other mention mutations will help in survival of the organism so they are helpful.

What is mutation?Mutation, an alteration in the genetic material of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell’s or the virus’s descendants.Mutations in egg or sperm cells may result in an individual offspring all of whose cells carry the mutation, which often confers some serious malfunction.Mutations are random changes, they are expected to be mostly deleterious, but some may be beneficial in certain environments.Mutation is the main source of genetic variation, which is the raw material for evolution by natural selection.

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5 bags with baseballs in them that weigh 21.56 if each bag weighs the same, how much does each bag weigh

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To found out how much one singular bag weighs you would have to divide the pounds total (21.56) by the amount of bags (5).
21.56 divided by 5 = 4.312.
So, the answer is 4.312lbs.
divide 21.56 by 5 that will give you the answer

Which of the following does NOT describe the macronucleus of a paramecium?
A. The macronucleus does not disintegrate during conjugation.
B. The macronucleus is not exchanged during conjugation.
C. The macronucleus has multiple copies of the genes that are used in day-to-day activities.
D. The macronucleus forms from the fusion of micronuclei.

Answers

D. The macronucleus does not disintegrate during conjugation.

The macronucleus contains the working copies of genes needed to support an enormous cell. It is formed by a division of the fused diploid nucleus after conjugation followed by multiple rounds of internal gene replication which does not occurs in the micronucleus.

Final answer:

The correct option describing what does NOT occur in a paramecium macronucleus is D: The macronucleus forms from the fusion of micronuclei. The macronucleus actually develops from the micronuclei after conjugation without any fusion of micronuclei.

Explanation:

To address the student's question regarding the macronucleus of a paramecium, we must examine each statement provided:

A. The macronucleus does not disintegrate during conjugation: This statement is true as the macronucleus disintegrates, and new ones form from the micronuclei after conjugation.B. The macronucleus is not exchanged during conjugation: This statement is true; during conjugation, paramecia exchange micronuclei, not macronuclei.C. The macronucleus has multiple copies of the genes that are used in day-to-day activities: This statement is true; the macronucleus contains multiple copies of the genome for metabolic and developmental functions.D. The macronucleus forms from the fusion of micronuclei: This statement is false, and therefore, is the correct option for describing what does NOT occur. Indeed, the macronucleus is not formed by the fusion of micronuclei. Instead, new macronuclei develop from the micronuclei post-conjugation, but there's no fusion involved in this process.

Thus, the correct response to the student’s question is option D: The macronucleus forms from the fusion of micronuclei.

What is the purpose of the villi and microvilli of the small intestine and the circular folds of the large intestine?

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The villi can increase the surface area in the small intestine for absorption of digested food. As the villi has a thin wall, one cell thick, which can speed up diffusion, and a network of blood capillaries to absorb and transfer nutrients.
And in large intestine, those folds can also increase the surface area for reabsorption of unabsorbed food, mostly water.

Final answer:

The villi and microvilli of the small intestine significantly increase the surface area to optimize the absorption of nutrients, while the circular folds of the large intestine help in slowing down waste to absorb water and electrolytes.

Explanation:

The purpose of the villi and microvilli in the small intestine is to augment the available surface area to maximize the absorption of nutrients. Absorptive cells that line the small intestine have microvilli, small projections that further boost surface area for enhanced nutrient absorption. Additionally, the small intestine is characterized by folds, known as villi, which are covered with microvilli, enlarging the surface area up to 600 times. This adaptation facilitates efficient digestion and absorption due to the extensive contact area for digestive enzymes and nutrient uptake. The folds in the mucosa are akin to the corrugations of cardboard, aiming to maximize the surface area in a limited space. Each villus encompasses a network of blood and lymph vessels that transport the absorbed nutrients throughout the body.

On the other hand, the large intestine features circular folds, which primarily function to slow the passage of waste material, allowing for more time to absorb water and electrolytes. The large intestine does not have villi or microvilli as its primary function is concerned with water absorption and waste formation rather than nutrient absorption.

Pain in one part of the body resulting from injury in another part is called

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Answer:  "referred pain" .
_____________________________________________

What issues will society need to resolve regarding this developing biotechnology, such as recombinant DNA technology? (1 point)


The issues regarding the cost of these procedures for patients

The question of who gets to benefit from these technologies

The issues surrounding its lack of medical benefits

The question of the long-term effects on consumers and the targeted species

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(The question of who gets to benefit from these technologies), things like cas9 and rDNA will change everything. another most likely answer would be (The question of the long-term effects on consumers and the targeted species) BUT we know that it would be catastrophic if we used things like cas9 to change the evolutionary scale than to USE IT AS A CURE.

Answer:

The correct answer will be option-the question of the long-term effects on consumers and the targeted species.

Explanation:

Advancements in technology have made it possible for humans to improve life.

Recent technology in the field of science is recombinant DNA technology which in simple words says that the genetic material of any organism can be altered by choice and can be recombined with the desired gene to achieve the results.

This technology although beneficial to humans has to lead to social and ethical issue related to the law of nature as it involves the genetic material of the organism which will make it difficult for the society to accept it. Genetically modified organism developed by this technology posses threat to the genetic diversity of the target species as well as the consumers due to the continuous use of these organisms.  

Thus, the selected option is the correct answer.

Consuming aspirin on a regular basis reduces the risk of

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(blood) clot-related strokes

Aspirin (acetylsalicylic acid) is a drug that is commonly taken as a pain reliever for mild aches and pains, as an anti-inflammatory, and as a blood thinner. Many people take this on a consistent basis to prevent heart attack or strokes because it can reduce the clotting ability of the blood (i.e. platelets). However, because aspirin reduces the blood's ability to clot, consistently taking aspirin increases a person's risk of bleeding (e.g. bleeding/ hemorrhagic stroke or gastrointestinal bleeding). 

You have been jogging for two hours and you get painful cramps in your legs. the cramps are caused by a buildup of lactic acid from the process called

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Anaerobic cellular respiration is used by the body in the lack of a certain reactant for regular aerobic cellular respiration. Usually this happens during exercise because it is harder for the body to provide both reactants for the chemical reaction; oxygen and glucose. When using anaerobic respiration the body is using the adipose tissue stored in the body to produce energy which produces 6 major waste products including Lactic acid.

During toddlerhood, children do not need as much of this to maintain a constant body temperature.

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During toddler hood, children do not need much FAT to maintain a constant body temperature. Excessive fat in the body are usually stored in the adipose tissues. Fat in the adipose tissues helps to keep the body temperature constant.

Malfunction in a control pathway for prolactin suppose that a woman had to have part of her thyroid gland surgically removed. she would most likely suffer from a condition known as hypothyroidism due to too little thyroid function. predict how this woman's hypothyroidism would affect prolactin levels in her body. which choice describes how surgical hypothyroidism would likely affect prolactin levels?

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Malfunction in a control pathway for prolactin suppose that a woman had to have part of her thyroid gland surgically removed. she would most likely suffer from a condition known as hypothyroidism due to too little thyroid function.

3 similarities and 3 differences between photosynthesis and cellular respiration

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In plants, photosynthesis, occurring in chloroplasts, is an anabolic (bond-building) process whereby CO2 and H2O combine with the use of light (photon) energy. This yields O2 and sugar (i.e. glucose). This occurs in 2 phases: light-dependent and dark (Calvin cycle) reactions, which both continually recycle ADP/ATP and NADP/NADPH.
The catabolic (bond-breaking) process in plants is cellular respiration, in which glucose is broken down with O2 by glycolysis (cytoplasm only) and mitochondrial reactions (Krebs cycle and E.T.C.) to yield CO2 and H2O. These reactions recycle ADP/ATP and NAD/NADH. The CO2 and water produced by cellular respiration feed into the photosynthetic processes, and in turn, the O2 and glucose resulting from photosynthesis supply the respiratory reactions.

Which are examples of habitat destruction? Check all that apply.

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A,C,D are the answers. I took Biology.

To identify the lower border of the liver the nurse would

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The nurse would need to use a technique called percussion in order to identify the lower border of the liver. Percussion is a technique where the medical professional would use their fingers in order to determine the size of the liver. The professional would lightly use their fingers to percuss and then move down to determine the lower border.

What are the 3 treatment approaches in substance abuse counseling?

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I know there is more than 3, but 3 major ones include: detoxification, behavioral counseling and medication.

Substance abuse counseling typically involves three treatment approaches: behavioral treatments to change behavior and develop coping strategies, medications to manage withdrawal symptoms and cravings, and support programs like group therapy to provide social and emotional support.

Substance Abuse Counseling Treatment Approaches

The three primary treatment approaches for substance abuse counseling are behavioral treatments, medications, and support programs. Behavioral treatments involve counseling such as cognitive-behavioral therapy, motivational enhancement therapy, and marital and family counseling, aiming to change drinking or substance abuse behavior. Medications approved by the Food and Drug Administration (FDA) are used to treat substance dependence by reducing withdrawal symptoms and cravings. Lastly, recovery support programs, including group therapy and family involvement, provide necessary social and emotional support to help maintain sobriety

Behavioral treatments are based on the notion that substance use disorders can be managed by altering maladaptive behavior patterns. These treatments use strategies that encourage individuals to develop skills to abstain from substance use, manage their cravings, and deal with life's challenges without resorting to substance abuse.

Medications play a significant role in helping to manage the physical aspects of addiction, such as withdrawal symptoms and cravings. These are often used in conjunction with behavioral therapies to improve overall treatment efficacy.

Support programs, particularly group therapy, are widespread due to the collective benefits they provide, such as support, affiliation, and identification with others facing similar challenges.

In nuclear fusion, high pressure and temperature fuse two deuterium nuclei and transform them into _____.

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Typing random things to reach the 20 character requirement. It's Helium 3 nucleus. 
im pretty sure its helium-3 nucleus idont know for sure though

In an experiment, a scientist adds lipase to a lipid sample. Lipase is an enzyme that helps in lipid digestion. The lipid sample breaks down into because of the lipase. The scientist heats the enzyme and finds that it can’t bind onto the lipids anymore. Indigestion, this situation will result in.

Answers

Answer:

Here ya go! Plz mark brainilest.

Explanation:

Enzymes are the biological proteinous molecules that accelerate the metabolic and chemical processes of the body. Lipids break into fatty acids by the lipase enzyme.

What are lipase enzymes?

Lipase enzymes are types of enzymes found in the body that splits the lipids into fatty acids and glycerol, which are the smaller units of triglycerides as the lipase enzymes are digestive and break the large biomolecule into its monomeric units. They play a vital role in lipid transportation.

The proteinous nature of enzymes denatures them at high temperatures and heat. The denatured lipase enzyme will become inactive and will not be able to bind to lipids which will decrease the rate of lipid metabolism in the body.

Therefore, the correct blanks are fatty acids and a decrease in the rate of lipid breakdown.

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which of the following best describes a marine climate?

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marine climate tend to has warm winters and cool summers.
Regions with marine climate mostly located in a region with low elevation. Regions with low elevation tend to have higher temperature,  but the existence of water near that region even out the temperature which resulted in moderate level of temperature all year long.

The diagnostic term beri/beri refers to ________________ and is caused by the lack of thiamine (part of b complex: b-1) in the diet.

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The diagnostic term for beri/beri refers to body weakness "weakness/weakness" and is caused by the lack of thiamine (part of B complex: B-1) in the diet. Beri/beri typically attacks/damages the nerves and can further lead to loss of strength of muscles or worse case - paralysis. 

Final answer:

The term 'beriberi' refers to a deficiency condition caused by a lack of thiamine (vitamin B-1), leading to symptoms affecting the nervous and cardiovascular systems, potentially fatal if untreated. It commonly arose from diets reliant on polished white rice, which lacks thiamine. This condition highlights the importance of vitamins in human nutrition.

Explanation:

The diagnostic term beriberi refers to a medical condition that is caused by the lack of thiamine (part of B complex, specifically B-1) in the diet. Beriberi showcases various symptoms including loss of appetite (anorexia), polyneuritis (defects of nervous system), edema, cardio-vascular changes, weakness, muscular atrophy, headache, insomnia, and gastro-intestinal disorders. It can assume four forms: Dry Beriberi, where nervous symptoms prevail; Wet Beriberi, associated with edema; Acute Pernicious Beriberi, affecting the heart; and Mixed Beriberi, which combines symptoms of the other types. Infantile Beriberi is another form seen in breastfed children with thiamine-deficient mothers' milk.

Thiamine is essential for every cell, notably affecting respiration and metabolic processes. Deficiency may result in conditions like Korsakoff's syndrome, optic neuropathy, and can have a potentially fatal outcome if untreated. Causes of thiamine deficiency include poor nutrition, consumption of foods with thiaminase, chronic alcoholism, and various chronic diseases.

What is the difference between whole-chromosome aberrations and point mutations?

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Both are types of mutation yet in a point change, one base combine is changed, and in a chromosomal deviation, a whole area of the chromosome is modified. 
A chromosome variation from the norm, issue, inconsistency, distortion, or change is a missing, additional, or unpredictable bit of chromosomal DNA. It can be from an atypical number of chromosomes or a basic anomaly in at least one chromosomes.

Why is it important that the definition states that the base of the logarithm is positive?

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Because thelogarithm is the inverse function of the exponential operation, i.e.: if ab=c a , then b=loga(c) b = log a ⁡ ( c ) .

What is the role of the prefrontal cortex?

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This brain region has been implicated in planning complex cognitive behavior, personality expression, decision making, and moderating social behavior.

Which of the following best describes the relationship between the structure of the cell membrane and its function? The cell membrane folds upon itself easily, which facilitates cellular reproduction by mitosis. The membrane is rigid and inflexible preventing the movement of substances across the cell membrane. The outer layer of the membrane is hydrophilic, which allows water to flow in and out of the cell easily to eliminate waste. The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.

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The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell. 
 
GIVE BRAINLIEST .  if im correct that is
The correct answer is D.
The cell membrane is a semi permeable structure, that is, it allows some substances to move to and from the cell but it impedes the movement of other substances. Some proteins are embedded in the membrane of the cell, these serve as carriers for substances which has to enter the cell but which can not pass through the semi permeable membrane of the cell.

The most common form of reproduction among prokaryotes is

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Binary Fission is the most common form of reproduction among prokaryotes. 

what was the most likely source region for the air mass over pennsylvania

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Final answer:

The air mass over Pennsylvania typically originates from the continental polar region (bringing cold, dry air) or the maritime tropical region (bringing warm, moist air).

Explanation:

The source region for the air mass over Pennsylvania is typically the continental polar or maritime tropical regions. These source regions typically influence the climate and weather patterns of the state. Continental polar air masses originate from the northern plains of Canada and bring cold, dry air. Maritime tropical air masses originate from the Gulf of Mexico and bring warm, moist air. The type of air mass over Pennsylvania can change depending on the season and weather patterns.

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Compare and contrast symbiosis and competition.

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Competition happens when there are two species of similar kinds in the same environment and the resources are in supply, and Symbiosis is the close association between individuals of different species occurring in a whole community.
Other Questions
Marisa is walking from her home to her friend Sanjay's home. When she is 12 blocks away from Sanjay's home she looks at her watch. she looks again when she is 8 blocks away from Sanjay's home and finds that 6 minutes have passed? A.what do you need to assume in order to treat this as a linear situation B. identified the variables for the linear situation and identify two points on the line explain the meaning of the points in the in the context of the problem C. find the slope of the line and describe what it means in the context of the problem D. write an equation in point slope form for the situation and use it to find the number of minutes It takes to reach Sanjay's home. show your work A strong acid has a pH approaching:08514 After you read the Landlady pull 5 examples of each from the text and pull into the chart Where might Michael look to find ideas about what the teacher thinks is important information to be learned for a test? a. Vocabulary lists and flashcards c. Pretests and quizzes b. His notes d. B and C only Which of the following is a common symptom of senioritis?A. Keeping the same work ethic you built earlier in high school B. Completing high school a semester earlyC. Missing classes D. Staying on top of responsibilities Which type of plate motion is characteristic of a transform boundary? What was ended by Ferdinand and Isabellas conquest of the Kingdom of Grenada? Muslim influence in Spain Interest in world exploration Religious tolerance in Spain English influence in Grenada Which of the following helped stabilize the economy of the Virginia colony? a. Tobacco b. Indigo c. Ship building d. Cotton The french had been reluctant to support the american colonists until general horatio gates won which american victory? Evaluate 8a^3b^-2 for a=4 and b=-5 The season closed and people went away like they had comein droves. Tea Cake and Janie decided to stay since they wanted to make another season on the muck. There was nothing to do, after they had gathered several bushels of dried beans to save over and sell to the planters in the fall. So Janie began to look around and see people and things she hadnt noticed during the season. Which aspect of early twentieth-century society in the South is illustrated in this excerpt? Laborers enjoyed traveling for pleasure. Laborers traveled to find work opportunities. People valued employment over friendship. People feared the changing of the seasons. In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally up and to the right. how many ways are there for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard? If y varies inversely with x and y=3 when x=4,what is the value of y when x=2? muscles in a kangaroo's legs work as a result of the way in which the cells that make up the muscle work. Which component of cell theory does this best illustrate? A. all living things are made of cellsB.Cells are the basic unit of structure and function of all living thingsC. all cells come from other cellsD. Cells are generated from non living materials What was the main benefit of scientific management? How often should you check your privacy settings on your social networking site?I. when you first sign upII. at least once a monthIII. whenever you or the service adds functionsA.I onlyB.II onlyC.I and IID.I, II, and III It is impractical to sell expensive products such as electronics or cosmetics through vending machines a. True b. False What is the value of 4 in 783,549,201 50 POINTS FOR WHOEVER ANSWERS CORRECTLY!!!!! Rotate these coordinates 270 degrees counterclockwise around the origin and then translate 5 units up. What is the length of side AC of the triangle? Enter your answers in the boxes. Steam Workshop Downloader