The interaction between valine and isoleucine in a protein's tertiary structure is a hydrophobic interaction due to their nonpolar, hydrophobic side chains.
Both valine and isoleucine are nonpolar amino acids with hydrophobic side chains. In the protein's tertiary structure, these nonpolar side chains tend to avoid contact with the aqueous environment and associate with each other within the protein's interior, enhancing the stability of the protein's three-dimensional shape.
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Question 1
The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division.
A.True
B. False
Question 2
During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope?
Anaphase
Interphase
Metaphase
Telophase
Question 3
Which is the third stage of mitosis?
Anaphase
Interphase
Metaphase
Telophase
Question 4
How is cytokinesis different in animals and plants?
Animal cells get pinched into two daughter cells by the cell membrane; the plant cell has to form a cell plate before it can create daughter cells.
Animal cells give daughter cells a full set of chromosomes at the time of division; plant cells give daughter cells a half set of chromosomes.
Animal cells require an extra growth phase before cytokinesis; plant cells move straight to cytokinesis.
Animal cells begin cytokinesis during anaphase; plant cells begin around the same time as telophase.
Question 5
During which stage of interphase does the cell grow to nearly its full size?
First gap
Second gap
Prophase
Synthesis
Question 6
Which of the following is one stage of the cell cycle?
Cellular respiration
Mitosis
Multiplication
Photosynthesis
Question 7
Explain why it is important for daughter cells to have a full set of chromosomes. Use complete sentences.
The term mitosis does not apply to prokaryotes since, it involves nuclear division and eukaryotic structures.
(4.02 LC)Which of the following products were created through marine biotechnology? Penicillin Plasma television Fluorescent dyes Lithium batteries
Wherever there is water, there is usually mold. From a particular mold Penicillium notatum, the first antibiotic was discovered by Sir Alexander Fleming and was called Penicillin. It is a marine biotechnology where subsequent research on other marine fungi was based.
Answer:
For me the answer was actually Fluorescent dyes and I got a 100%
Explanation:
Chemical compounds from marine organisms can be used for more than medicine. New types of glue have been developed from mussels, heat-resistant enzymes from deep-sea bacteria have industrial applications, and fluorescent compounds from coral and jellyfish can be used commercially as fluorescent dyes.
The atp synthase uses this gradient to restore adp back to atp. what is this process called?
ATP synthase uses a proton gradient to restore ADP to ATP in a process known as chemiosmosis, which takes place during oxidative phosphorylation.
Explanation:The process by which ATP synthase uses a proton gradient to restore ADP back to ATP is called chemiosmosis. This occurs during oxidative phosphorylation, a key part of cellular respiration where the energy stored in the electrochemical gradient, developed due to the movement of protons (H+), is utilized. As protons flow through ATP synthase, much like water flowing through a turbine, they provide the energy needed for the enzyme to catalyze the production of ATP from ADP and inorganic phosphate (Pi).
The three main effects of ____ are pain reduction euphoria and constipation
Answer:
Opiates
Explanation:
Opiates are the chemicals that are obtained by the modification of natural opium components. High amount of opiates in the body can cause death of an individual.
Opiates are used to reduce pain, euphoria , produces the sense of well being and constipation. Regular use of opiates can cause addiction in the organism.
Thus, the answer is opiates.
Anton thinks that glucose is a reactant of photosynthesis, but his classmate Jamila disagrees. Who is correct, and why?
Anton is correct because glucose is a substance that is present before the chemical reaction of photosynthesis takes place.
Anton is correct because glucose is a substance that is formed from the chemical reaction of photosynthesis.
Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Jamila is correct because glucose is not involved in the chemical reaction of photosynthesis.
Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Photosynthesis is a chemical reaction that occurs in plants which produce their food in the form of glucose by trapping the light energy from sun and using reactants such as carbon dioxide from the atmosphere and water. This process occurs in the leaf cells of the plants.
On the basis of the above information, this can be concluded that Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Answer:
Answer: Jamila is correct because glucose is a product, not a reactant, of photosynthesis.
Explanation:
I just finished the test :D
does a plant have a closed or open circulatory system
Year-old fell on broken glass and required suturing of a laceration. due to age and combative behavior of the patient, the physician utilized moderate sedation while repairing the laceration. the physician gave the child 50 mg of ketamine im. a nurse monitored the patient during the procedure which took 30 minutes. what cpt® code is reported for moderate sedation?
The fat located under the skin is called ________ fat.
Answer:
subcutaneou
Explanation:
subcutaneou
Can i have brainly pls
Given a template strand of 3'-atgcttggaca-5' and a partially-made complementary strand containing only 5'-tac-3', what would be the sequence of the new strand of dna (including the 5'-tac-3') if the only additional nucleotides available to dna polymerase were those containing the bases g, a, and c?
"why is it necessary to phosphorylate a glucose molecule, creating glucose-6-phosphate
It is important because the body needs energy from glucose, glycogen phosphorylate, with the help of an orthophosphate, can cleave away a molecule from the glycogen chain. The cleaved molecule is in the form of glucose-1-phosphate, which can be change into G6P phosphate.
Which meninx surrounding the central nervous system contains blood vessels that nourish the neural tissue?
A person who is highly tolerant to _____ creates problems for anesthesiologists in surgery.
A hypothetical poison prevents nucleoli from carrying out their functions. Which organelles would be affected by this poison? What would the cell be unable to do? Explain.
15 POINTS!
Study the diagram, which represents the general equation for photosynthesis. What do the letters Y and Z represent?
Y - glucose
Z - oxygen
Y - glucose
Z - carbon dioxide
Y - carbon dioxide
Z - hydrogen
Y - carbon dioxide
Z - oxygen
Answer:
The correct answer is Y - glucose, Z - oxygen
Explanation:
In photosynthesis, plants- and also other organisms- take carbon dioxyde (CO₂), water (H₂O) and light (which is absorbed by chlorophyll pigments, those give plants their green color), and they convert inorganic materia in organic materia (chemical energy) in form of sugar. The overall process is described by the following global equation:
6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂
carbon dioxide + water → glucose + oxygen
In the diagram, the equation is:
carbon dioxide + water + sunlight → glucose + oxygen
Answer:
The correct answer is A.
Explanation:
Y represents Glucose, a product of cellular respiration. Z represents Oxygen, which is also a product of cellular respiration.
(CO2 + Water + Sunlight = Glucose and Oxygen)
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Consider the diagram. mc004-1.jpg Josiah says this is a phylogenetic tree of the dinosaurs. Maleek says it is a cladogram of the dinosaurs. Who is correct?
Answer:
c
Explanation:
Choose the appropriate term to fill in the sentence: when mrs. m ate, her intestinal contents became __________ to her blood. her blood became __________ to her intestinal contents.
The movement of protons (h+) through the atp synthase occurs from ______ to ______ proton concentration.
The ____________ contains vertically arranged maculae that would provide feedback of body movement in the vertical plane
The structure of hair is formed by keratin. Keratin is most likely which of the following polymers?
Answer:
Keratin is a protein.
Explanation:
Keratin is a fibrous protein that has the characteristics of rigid conformation, elasticity and impermeability to water. It has animal origin and is found in the vertebrate epidermis and in some epidermal appendages, such as hair, nails, hooves, feathers and scales. This protein is produced in cells called keratinocytes, which are the most abundant in the human epidermis.
Like any protein, keratin is made up of amino acids. It has a large amount of cysteine residues, which is responsible for 7% to 20% of the total amino acids present in keratin. Note that cysteine is mainly located in the terminal region of the keratin chains.
The cytoskeleton is an internal scaffolding used for cellular movement true or false
Which organelle is made of a phospholipid bilayer? A. cell wall B. cytoplasm C. ribosome D. cell membrane
Analyze this case in which the patient record states:40 year old male patient (new) is evaluated for contusion of a finger. the history and examination were problem focused.
Finger contusion can be characterized by bruising of finger, where there is swelling and bleeding under the skin but no broken bones.
1. Diagnosis and Management:- Contusion of finger is diagnosed by the symptoms such as pain, swelling, discoloration, tenderness and difficulty in movement. Sometimes numbness is associated as swelling compresses the nerves in that region.X-ray (If required CT scan0 can be done to confirm the diagnosis and rule out fractures and other serious forms of injuries.
Depending upon the severity, treatment is decided. The contusion is managed with an aim to reduce pain, swelling and restore the movement. The options so as to treat the contusion, based on its severity are as follows
a. Applying Icepacks and keeping the finger propped up above the heart level.
b. Splinting and taping
c. Physiotherapy
d. Ultrasound therapy
e. Surgical treatment is required in case of torn ligaments.
These options of treatment are accompanied with over the counter pain killers and anti inflammatory drugs
"we find perennial grasses and flowering plants called forbs in __________ grasslands."
The biodiversity of the Earth’s vegetation makes up its beauty especially the grassland which is covered mostly of trees and grasses. There are a lot of varieties of grassland and among of which is savanna grassland where we can find perennial grasses and the flowering plant called forbs.
Arabinose is a monosaccharide that
e. coli can use as an energy source. when both glucose and arabinose are present in the media,
The ara operon is controlled by a regulator protein that exerts ________.
AraC protein certain to the ara
operator works as a repressor that avoid transcription of the same ara operon
and the araC gene AraC protein is an activator in the presence of arabinose and
repressor in the absence of arabinose -With arabinose absent, the AraC protein
stays as
a homodimer. One AraC protein put together to the ara initiator and the other
protein now binds to a different regulatory site in DNA called the ara operator.
The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of which form of reproductive isolation?
a. temporal isolation
b. behavior isolation
c. hybrid infertility
d. gametic isolation
e. hybrid inviability
Final answer:
Ligers, offspring of a tiger and lion mating, exhibit hybrid infertility due to hybrid sterility, which is a type of postzygotic reproductive isolation preventing them from reproducing.
Explanation:
The offspring produced between the mating of a tiger and a lion, a liger, which is unable to reproduce, is an example of hybrid infertility. Specifically, this is a case of hybrid sterility, which is a form of reproductive isolation that occurs after fertilization, resulting in a hybrid that is not capable of reproducing. Thus, the correct answer is c. hybrid infertility.
Most enzymes in living things are made up of
1. Carbohydrates
2. Lipids
3.Proteins
4. Nuclear acids
Someone please help me with this as soon as you can!
Answer:
3. Proteins
Explanation:
Enzymes are naturally occurring groups of organic substances of protein origin (they can be form by 62 amino acid residues, such as 4-oxalocrotonate tautomerase enzyme monomer to 2500 residue size) with intra or extracellular activity that have catalyst functions. This is achieved by lowering the activation energy to allow a chemical reaction, resulting in an increased reaction speed and allowing the metabolism of living things. Importantly, although most enzymes are proteins, there are also enzymes consisting of RNA as ribozymes.
Marvin blows up a balloon but lets go of it. The air inside is released and the balloon goes up into the air. What best describes what happens? A) Gravity pushes the balloon into the air. B) Drag is caused by contact of the balloon with the air. C) Lift lowers the air pressure on the top of the balloon. D) The air pushes the balloon in the opposite direction.
Answer:
D) The air pushes the balloon in the opposite direction.
Explanation:
When the balloon bursts the air pushes the balloon in the opposite direction to the air that was released from inside the balloon. This is because of the difference between the atmospheric pressure and the pressure that was inside the balloon. When the balloon bursts, the pressure gradient causes a force that causes the air inside the balloon and the balloon to be pushed in opposite directions.
which one of these is not a reason that cells require the ability to diffuse materials across their membranes?
Which of the numbered features is a lateral moraine?