1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
patriot [66]
3 years ago
12

The behavior of allosteric enzymes a. does not play any role in feedback inhibition in metabolic pathways b. is strongly depende

nt on the presence of metal ions c. is related to their ability to hydrolyze themselves d. depends on changes in their quaternary structure on binding of substrates or inhibitors
Biology
2 answers:
Ugo [173]3 years ago
5 0

Answer:

The correct answer is d

Explanation:

Allosteric enzymes have multiple binding sites to different ligands called allosteric sites (different from the active site), these ligands can modify their kinetic properties. They are generally made up of more than one polypeptide chain, and have a quaternary structure, an enzyme with a quaternary structure can bind more than one substrate molecule. An allosteric enzyme is an enzyme whose activity is regulated by an allosteric center, which is a site, other than the active center of the enzyme, to which a regulator (called an allosteric regulator) binds in a reversible and non-covalent manner. The binding of this regulator modifies the three-dimensional structure of the enzyme and affects the configuration of the active site, thus increasing or decreasing its activity, depending on the case. The allosteric sites present in regulatory enzymes is where allosteric effectors or inhibitors are attached, causing a conformational change in the substrate binding site or catalytic site, thus regulating enzyme activity.

Lilit [14]3 years ago
4 0

Answer:

d. depends on changes in their quaternary structure on binding of substrates or inhibitors

Explanation:

Allosteric enzymes are oligomeric proteins composed of subunits or polypeptidic chains. They have a quaternary structure -many subunits and active sites- and express two states, R and T. Both states establish an equilibrium, with or without a joint ligand.

When the transition from one state to the other occurs, symmetry is conserved, but the affinity of a site to a ligand is altered. When a substrate joins one of the sites, it affects other binding sites.

Allosteric enzymes can change their conformation, exhibiting active and inactive conformations as a result of substrate binding at the activated center and regulatory molecules at other binding sites -allosteric centers-.

You might be interested in
Choose all the answers that apply.
Mariulka [41]

I think that these are the answers

is the least dense planet in the solar system

has captured asteroids in its orbit

is the most massive planet in the solar system

4 0
3 years ago
Which is the advantage of water's heat capacity?
kipiarov [429]

Answer:

it protects aquatic life from changes in air temperature

Explanation:

3 0
3 years ago
Read 2 more answers
What is theory of to observe the neucles in cheek cells​
solong [7]

Answer: The theory of cheek cells is used for the identification of cheek cells.

Explanation:

The cells of cheek do not have cell wall. They have a cell membrane which allows on certain molecules to pass through it. The nucleus is located centrally in the cheek cells and it stores the DNA. It can be stained with the help of the methylene blue reagent. It appears blue in color which can be observed under the microscope. The cheek cells can be isolated from the buccal cavity by using cotton buds and cotton swabs can help in isolating the cells.

5 0
3 years ago
WILL MAKE BRAINLIEST!!!!!!!!!!!!!!
Bogdan [553]
The answer is A.
Temperature changes when salt is in water, therefore the water will become more livable and suitable to those fish .

Have a nice day.
~Brooke❤️
6 0
3 years ago
Read 2 more answers
This organism must consume other organisms to obtain its energy
Tomtit [17]

Answer: consumer

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which kingdom has more more individual organisms than any of the other 5 kingdoms? (Bacteria)
    11·1 answer
  • WILL GIVE BRAINLIEST! (Image attached)
    9·2 answers
  • Which of the following was a function of the wetlands in Florida?
    14·1 answer
  • Select all that apply. Which of the following were developed during World War II?
    9·2 answers
  • A scientist wants to compare DNA of two plants. What technique can she use to produce bands of DNA fragments for this comparison
    15·1 answer
  • A nurse is caring for a client receiving oxygen therapy. what is the expected reference range when obtaining oxygen saturation l
    11·1 answer
  • What are the two major methods of cellular division in eukaryotic cells?
    14·1 answer
  • Why is oxygen important for maintaining your muscles functions
    6·1 answer
  • Cyanide is known to inhibit the flow of electrons along the electron transport chain. How would exposure to cyanide affect the p
    15·1 answer
  • In response to hemorrhage, there is A) peripheral vasodilation. B) increased parasympathetic stimulation of the heart. C) mobili
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!