When an acid is added to water, hydroxide ions increases.
it decreases. i know this for sure
DNA in the nucleus unzips and mRNA forms a copy of the gene. It then moves out of the nucleus to the ribsome where is matches its codone to the anti codon of a tRNA molecule. The amino acid attached to the tRNA then bonds with other amino acids to form a polypetide strand forming a protein. What is the best description of the process described in the statements.
Smooth muscle cells lack which protein(s)?
A. actin only
B. myosin only
C. troponin only
D. tropomyosin only
E. troponin and tropomyosin
The correct answer is C. troponin only.
The smooth muscle cells contain similar elements like the cardiac and skeletal muscle cells including actin, myosin and tropomyosin but they contain troponin.
Smooth muscle tissues are non striated and produce their own connective tissue called endomysium. Smooth muscle cells also lack sarcomeres but have other thin and thick filaments along with actin and myosin contractile proteins.
Due to lack of troponin the cross bridge formation is regulated by the regulatory protein calmodulin instead of the troponin- tropomyosin complex.
The correct option is C. troponin only, as smooth muscle cells lack the regulatory protein troponin, which is present in skeletal and cardiac muscles to aid in contraction regulation.
The correct option to the question "Smooth muscle cells lack which protein(s)?" is C. troponin only. Unlike skeletal and cardiac muscle cells, smooth muscle cells do not contain the regulatory protein troponin. In relaxed skeletal muscle, for instance, the myosin-binding site on actin is blocked by tropomyosin, and the presence of troponin regulates the interaction between myosin and actin. However, smooth muscle regulation is different, and it does not involve troponin. Instead, smooth muscle contraction is controlled through the phosphorylation of myosin light chain and other regulatory mechanisms without the need for troponin.
It's important to note that smooth muscle does contain tropomyosin and the contractile proteins actin and myosin, which are all crucial for muscle contraction.
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As a cell gets larger, its surface area to volume ratio
A. stays the same.
B. increases.
C. decreases.
D. becomes zero.
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As a cell gets larger, the internal volume enlarge and consequently the cell membrane has to expand.And so when the volume increases, the amount of surface area that is available to surpass the materials in a cell steadily decreases.So,the surface area to the volume ratio would get smaller if the cell gets bigger. The answer is C.
What type of energy is present in water at the top of a hydroelectric dam? Gravitational energy
Chemical energy
Nuclear energy
Radiant energy
Water at the top of a hydroelectric dam holds gravitational potential energy, which is converted to kinetic energy as it falls, and finally to electrical energy as it passes through turbines and generators.
Explanation:The type of energy present in water at the top of a hydroelectric dam is gravitational potential energy. This energy is due to the elevated position of water, which has the potential to do work when it is allowed to fall. In a hydroelectric power facility, as the water is released from the reservoir and falls towards the generators, this gravitational potential energy is converted into kinetic energy. Then, as the water flows through turbines at the bottom of the dam, the kinetic energy is utilized to turn the turbines which, in turn, drives the generators to produce electrical energy.
Hydroelectric power leverages the energy conversion process that starts with the gravitational potential energy of the stored water. This process is highly efficient, often capturing up to 90% of the potential energy and converting it into electrical power. Hydroelectricity taps into the solar-driven evaporation cycle, where solar energy lifts water into the atmosphere which later falls to higher altitudes, enabling the capture of the energy as it moves back down.
Which item is made from a basic ingredient?
Soap
Tea
Wine
Vinegar
Its tea because it is just made of the leaves it self.
Hope this helped!! Have a good day c;
Answer:
the answer is soap
Explanation:
basic=bases soap is made with a base ingredient
tea is incorrect because its made with tannic (acids)
wine is incorrect because its made with tartaric (acids)
vinegar is incorrect because its made with acetic (acids)
Why do viruses need living hosts, such as bacteria or eukaryote cells? (SB4c) A) The host cell is the source of food for the virus. B) Viruses depend on the host cells that they infect to reproduce. C) Viruses have a cellular structure which never require a host. D) Viruses depend on a host cell because they lack their own DNA or RNA.
The answer is; B
Actually, viruses are considered nonliving things because they are unable to bear the characteristic of living things (such as respiration, reproduction, growth, excretion, and etcetera) on their own. They only infect host cells to ride on the cell's biochemical machinery to be able to reproduce. Once outside the cells, they are non-living.
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If DNA molecules are broken down into individual atoms, which of the following groups of elements will be found?
A. boron, chlorine, helium
B. phosphorus, carbon, oxygen
C. nitrogen, sodium, potassium
D. zinc, magnesium, calcium
A vitamin is a ____.
A) Protein that acts as a catalyst for cell functions
B) Substance that is soluble in water and is stored in the body
C) Compound that organisms need in small amounts but cannot produce
I believe the answer is b.
Hi !!
A vitamin is a compound that organisms need in small amounts but cannot produce
Heat is removed from the system, and the particles slow down. When enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. When this happens, the substance enters its solid state. The process described above is known as .
The process described is called freezing. Any substance in its solid state is frozen. We tend to think of things that are frozen as being cold because ice tends to be our frame of reference. However, a ball of solid steel sitting on table in hot garage in August is a ball of frozen steel because steels freezing point is much higher than water's freezing point. The freezing temperature depends on the properties of the elements in the substance. Some substances freeze at cold temperatures (water), some substances freeze at really cold temperatures (carbon dioxide, nitrogen), and some temperatures freeze at hot temperatures (steel).
The process where heat is removed causing particles to slow down, unable to overcome the attractive forces between them and entering the solid state is referred to as freezing.
Explanation:The process described in your question is known as freezing. When heat is removed from a substance, the particles within it start to lose kinetic energy, which means they begin to slow down. As more and more heat is removed, the particles start to move so slowly that they are unable to overcome the attractive forces between them. As a result, they start clumping together, leading to the formation of a solid state of matter. The transition from a liquid to a solid due to removed heat is called freezing.
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Why does a frameshift mutation usually cause more effects during protien sythesis than a point mutation
Frameshift mutation affects codons downstream the point of mutation. The previous order of 3 nucleotide- sequences (codons) is consequently changed. This, therefore, changes the protein coded by the mRNA transcribed by the mutated DNA region. Frameshifts are mostly due to insertion or deletion mutations.
When we learn to understand the mind and feelings, we can also learn to ___ and ___ behavior.
a. predict and control
b. understand and explain
c. eliminate and forget
d. explain and describe
(this is psychology, there isn't a psychology option)
A. Predict and control
When we learn to understand the mind and feelings, we can also learn to predict and control behavior. The correct option is A.
Thus, Understanding the intricacies of the mind and emotions can help us understand why people act the way they do. We can acquire the ability to forecast how individuals could act in certain scenarios by learning more about human psychology, motivations, and emotions.
This predictive knowledge can be useful in a variety of situations, including counselling, interpersonal interactions, and even industries like marketing and advertising.
Furthermore, we can discover techniques to sway or mould behaviour by understanding the mind and emotions. In order to influence others positively or promote desired behaviours, we can use this information to develop persuasive abilities, empathy, and successful communication strategies.
Thus, When we learn to understand the mind and feelings, we can also learn to predict and control behavior. The correct option is A.
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A 70-year-old patient with chronic obstructive asthma is brought to the urgent care center with increased wheezing and coughing. The provider initiated an albuterol inhalation treatment, one dose, delivered by nebulizer. After treatment, the patient's exacerbation was somewhat improved but the provider determined a second treatment was necessary. What codes are reported
The codes to be reported in the given case are 94640, 94640 - 76, J7609 * 2, J44.1.
In the CPT index, when one looks for airway obstruction / Inhalation treatment / Non-pressured or pressured, then one is directed to 94640. Inhalation treatment was instructed therapeutically in treating the acute airway obstruction. Two treatments were given, so code 94640 is reported twice.
Under code 94640, there is a parenthetical instructing given to use modifier 76, in case if more than one inhalation treatment is done on a similar date. As the treatment is done urgently, that is, in the office, the physician uses albuterol, in the given case, two doses of albuterol is given, so J7609 is reported twice per dose. The diagnosis code for exacerbation is J44.1.
Final answer:
The codes to report for the second albuterol inhalation treatment for the patient are 94640 and 94640-76.
Explanation:
The codes that should be reported for the 70-year-old patient with chronic obstructive asthma who required a second albuterol inhalation treatment delivered by nebulizer are as follows:
94640: Pressurized or non-pressurized inhalation treatment for acute airway obstruction or bronchospasm, first hour
94640-76: Pressurized or non-pressurized inhalation treatment for acute airway obstruction or bronchospasm, additional 30 minutes
This means you would report 94640 for the initial treatment and then add -76 for the additional treatment that was necessary.
Which of the following statements concerning the light-independent processes of photosynthesis is true? 1Points A Carbon dioxide is removed as a waste product. B An unstable six carbon molecule is created. C No energy is produced. D All of the glucose-creating molecules made from the processes go into making glucose.
The correct answer is option D
Reason: All other options are incorrect as
Carbon dioxide used in the light-independent processes of photosynthesis (Celvin Cycle) are used completely to form glyceraldehyde-3-phosphate (G3P) molecule which is stable and is a six carbon molecule. Also Energy is produced in the form of NADPH and ATP.
6 CO2 enters the celvin cycle and 6 G3P molecules are formed out of which 1 leaves the cycle and and rest 5 G3P molecules get regenerated thereby regenerating 33 RuBP acceptor molecules.
All prokaryotes are single-felled organisms. Compare prokaryotes and eukaryotes. Select the characteristics that only apply to prokaryotes.
Final answer:
Prokaryotes are predominantly single-celled organisms that lack membrane-bound organelles and a nucleus, with their DNA found in the nucleoid. In contrast, eukaryotic cells have a membrane-bound nucleus and various organelles, and they may be single-celled or multicellular.
Explanation:
Prokaryotes and eukaryotes represent the two fundamental categories of cells. Comparing these two cell types, prokaryotes are predominantly single-celled organisms that belong to the domains Bacteria and Archaea. They lack a membrane-bound nucleus and other membrane-bound organelles. Instead, the DNA of prokaryotes is located in a region called the nucleoid.
Key characteristics of prokaryotes include:
The absence of a membrane-bound nucleus, instead having their genetic material freely floating in the cytoplasm.Lack of membrane-bound organelles such as the endoplasmic reticulum, mitochondria, or Golgi apparatus.Maintenance of cell structure mostly through peptidoglycan cell walls, which is especially true for bacteria.Size, as prokaryotic cells usually range in diameter from 0.1 to 5.0 μm, smaller than most eukaryotic cells.On the contrary, eukaryotic cells have a membrane-bound nucleus and possess various other membrane-bound organelles that compartmentalize the cell and perform specialized functions. Eukaryotes can be single-celled or multicellular, and include organisms such as animals, plants, fungi, and protists.
Define
nitrogen fixation:
logistic growth rate:
plz:)
They contain symbiotic bacteria called rhizobia within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil.
An offspring forms with genetic input from two parents. What can be known about the offspring?
Arrange the following in the correct sequence: 1. Polypeptide chaines move through the rough ER and are then carried in vesicles to the Golgi apparatus. 2. Vesicles are pinched off from the Golgi apparatus carrying newly formed proteins to the plasma membrane. 3. The Golgi apparatus separates and modifies varieties of proteins and then packages them into vesicles. 4. Polypeptide chains are made by ribosomes on the rough ER.
The answer is;
4, 1, 3, 2
The rough endoplasmic reticulum (RER) is referred to as ‘rough’ due to the presence of numerous ribosomes on its membrane. When the ribosomes translate proteins, the proteins enter the lumen of the ER and are folded appropriately by the help of chaperones. The proteins travel from the cis to the trans end of the ER during this modification this process. At the trans end they pinch off into vesicle that later join the Golgi apparatus. The protein are modified and packaged in teh Golgi. They then pinch off into vesicles and transported to their site in the cell or to the plasma membrane for exocytosis.
Patient comes in today to the provider's office for routine monthly foley catheter change. a two way foley catheter is replaced in the usual sterile fashion. an abdominal urinary drainage bag and bedside bag are given to the patient. what is/are the correct code(s)?
Final answer:
The correct medical codes for a Foley catheter change would involve a CPT code for the procedure and potentially additional codes for the supplies, keeping in mind the importance of sterile techniques to prevent catheter-related bloodstream infections.
Explanation:
Coding medical procedures correctly is important for medical billing and ensuring that healthcare providers receive appropriate reimbursement. The procedure described involves replacing a two-way Foley catheter in a sterile fashion and providing an abdominal urinary drainage bag and bedside bag.
While specific codes are not provided in the text, the correct coding would typically involve a Current Procedural Terminology (CPT) code for the catheter replacement and possibly additional codes for the supplies provided, as per the guidelines set by the American Medical Association (AMA).
In addition, considering the context provided about catheter-related bloodstream infections, it is crucial that medical professionals adhere to strict sterile techniques during the procedure to prevent such infections, which contribute to a significant number of hospital-related deaths as per the World Health Organization (WHO).
Write a letter to your parents explaining how you received your genes. Try to explain to your parents why you look the way you do.
Dear mama and papa,
I am here to tell you about how I received the genes from both of you and why I am looking like having resemblance of you. I had studied in the biology class. I have received half of your genes from both of you.
This process occurs during the DNA synthesis. That's why I have possessed both characters of you and mama. This is the very reason my appearance is resembled to both of you.
Answer:
Explanation:
The letter to my parents describing how I received my genes.
Dear Parents,
Hi, Mum and Dad. I hope you are all doing well. I am writing this letter to satiate your curiosity on how I received the genes I now possess and how I look the way I do now.
Firstly, all living organisms including we, humans, contain genetic material in form of DNA, through which genetic information is expressed and transferred to offsprings. This DNA which contains functional segments called GENES, are transferred in humans (like us) via gametes or sex cells.
The sex cells are produced by the process of meiosis, a cell division that divides each portion of the DNA containing all genes into gametes. These gametes (sperm and egg, in male and female respectively) fuses in the process of fertilization to form a zygote, which contains all the necessary genetic information from both parents (mother and father).
This further explains why I look like either mum or dad because i contain in my genome both of your genes.
In the early 1800's, Darwin studied 13kinds of finches. What did Darwin hypothesize about these birds?
Fires are important to savanna ecosystems, but not to grassland ecosystems. Please select the best answer from the choices provided T F
The given statement is false.
The fires are essential to both the grassland and savanna ecosystems. The grasslands and savannas are featured by two seasons, which are sustained by fire, and exhibit species that are impervious to drought. These fires help in following on the sequences and permit for habitats to maintain their resolution.
The African savanna ecosystem refers to a tropical grassland with warm temperatures over a year, and with its highest seasonal rainfall in the summers.
Answer:
FALSE
Explanation:
Which cellular organelle is the site of synthesis of amino acid-based hormones? Which cellular organelle is the site of synthesis of steroid hormones? Which cellular organelle is the site of synthesis of amino acid-based hormones? Which cellular organelle is the site of synthesis of steroid hormones? The Golgi apparatus; the mitochondrion The nucleus; the chromosome The ribosome; smooth endoplasmic reticulum The smooth endoplasmic reticulum; the Golgi apparatus
smooth endoplasmic reticulum >>>steroid hormones
ribosome>>> amino acid based hormone
Answer:
The correct answer would be The ribosome; smooth endoplasmic reticulum.
Ribosomes are the site of protein or polypeptide chain synthesis. They with the help of mRNA and tRNA synthesize polypeptide chains. Thus, amino acid-based hormones would also synthesize at ribosomal sites.
Smooth endoplasmic reticulum (SER) is a type of endoplasmic reticulum that lacks ribosomes. It forms a major site for synthesis and storage of lipids such as phospholipid, cholesterol et cetera. In cells of the adrenal gland, SER plays an important function in the synthesis of steroid hormones from cholesterol.
Because individuals in a population usually tend to produce more than one offspring,
a. the number of individuals declines rapidly.
b. populations tend to increase in size.
c. populations remain stable in size.
.d individuals tend to die quickly.
Which of the following would NOT be true of cDNA produced using human brain tissue as the starting material?
a. It was produced from mRNA using reverse transcriptase.
b. It could be used to create a complete genomic library.
c. It could be amplified by the polymerase chain reaction.
d. It could be used as a probe to detect genes expressed in the brain.
e. It lacks the introns of the human genes.
the correct answer is B. it could be used to create a complete genomic library.
cDNA produced using human brain tissue lacks the introns of the human genes.
Explanation:The correct answer is e. It lacks the introns of the human genes.
When cDNA is produced using reverse transcriptase, it is synthesized from mRNA, which carries the coding sequences of genes but lacks introns. Introns are non-coding regions of genes that are present in genomic DNA but are removed during mRNA processing. Therefore, cDNA lacks introns, which are present in the human genes.
To create a complete genomic library, all the genomic DNA fragments need to be cloned, which include introns. As cDNA lacks introns, it cannot create a complete genomic library. However, it can be used to create a complementary DNA (cDNA) library, which only contains the coding sequences of genes.
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A scientist makes The argument that she found DNA evidence that shows that evolution did not exist. What would her evidence have to show for her to be correct
Weak genetic organisms and strong genetic similarities in distantly related organisms
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Watch this video about kipunji monkeys in Africa. If you were a conservationist monitoring the populations of these monkeys, what method would you choose?
link to da vid- https://app.edmentum.com/content-delivery/resource/67ba7f1b-ec1c-4485-a1b8-339de13b233a (copy n paste it)
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Answer:
Plato answer
Explanation:
Tagging and tracking would be the most effective method of monitoring the monkeys. They are large animals that are quite mobile, so many of the other methods wouldn’t work as well. Because these monkeys were recently discovered, we likely don’t know much about them. This form of monitoring will help us to better understand their behavior and resource needs. This information will help us determine exactly what threatens the species, so we can determine the best way to conserve the species.
Paraphrase as needed
The line transect method, camera traps, and genetic analysis would be suitable methods for monitoring kipunji monkey populations in Africa.
Explanation:If I were a conservationist monitoring the populations of kipunji monkeys in Africa, I would choose the line transect method to gather data. This method involves walking along a predetermined path and recording every sighting or evidence of the species. By measuring the distance between each observation, I could estimate population density and track any changes over time.
In addition to the line transect method, I would also utilize camera traps. These are motion-activated cameras placed in strategic locations, such as known feeding or resting spots. Camera traps will capture images or videos of the monkeys, allowing me to identify individuals and estimate population size and behavior.
Lastly, I would consider using genetic analysis to study the kipunji monkeys. By collecting DNA samples from feces, hair, or tissue, I could analyze their genetic diversity, relatedness, and population structure. This information is crucial for understanding their overall health and potential threats to their conservation.
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If a ball that a five-month-old infant is playing with rolls under a chair (and out of sight), the infant will not look for it. Piaget believed that this occurs because the infant
a. does not understand the concept of roll.
b. has a short attention span.
c. has not developed conservation.
d. has not developed object permanence.
If DNA templates reads "ATA," then what would be the correct corresponding sequence on the mRNA
If DNA templates reads "ATA," UTU since mRNA has no Thiamine(T) . It has uracil(U) in place of T the correct corresponding sequence on the mRNA.
What is transcription?Transcription has been the process of copying the information in the DNA into an RNA molecule. It is the using of a DNA template to form a messenger RNA (mRNA). Translation follows transcription, which is the process of using RNA as template to synthesize amino acids sequence (proteins).
Translation occurs in the ribosome, with the aid of the transfer RNA (tRNA). The tRNA helps read the mRNA codon with the anticodon that is complementary to the codon sequence. Hence, if the mRNA codon has a CGT sequence, only a tRNA will ANTICODON sequence GCA, will be able to bind to it.
Therefore, If DNA templates reads "ATA," UTU since mRNA has no Thiamine(T) . It has uracil(U) in place of T the correct corresponding sequence on the mRNA.
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Antarctica is covered in ice. which of the following would you expect to be true of Antarctica ?
A. The ice is immune to insolation
B. The ice has no heat capacity
C. The ice has a high albedo
D. The ice reflects no radiation
The correct answer is C. The ice in Antarctica has a high albedo, meaning it reflects a significant amount of solar radiation, which contributes to the continent's very cold temperatures.
Antarctica is a continent extensively covered in ice, which plays a crucial role in reflecting solar radiation due to its high albedo. Albedo refers to the reflectivity of a surface, with lighter colored surfaces like snow and ice reflecting more radiation than darker ones. Thus, the correct answer to the question "which of the following would you expect to be true of Antarctica?" is C. The ice has a high albedo. This high albedo means that a significant amount of the solar radiation reaching Antarctica's surface is reflected back into the atmosphere, contributing to the continent's extremely cold temperatures.