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
e-lub [12.9K]
3 years ago
9

Citrate synthase is regulated by another metabolite that has the opposite effect (i.e., stimulates citrate synthase). Choose the

description of a condition where a positive regulator activates citrate synthase.
(A) Low [ATP/ADP] ratio. ADP is an allosteric activator of citrate synthase.
(B) High [ATP/ADP] ratio.
(C) High ATP substrate levels favor product formation.
(D) High [ NADH / NAD ] ratio. NADH is a positive allosteric activator.
(E) High [citrate]. Citrate is a positive allosteric activator.
Biology
1 answer:
yan [13]3 years ago
8 0

Answer:

Option A, Low [ATP/ADP] ratio. ADP is an allosteric activator of citrate synthase.

Explanation:

Allosteric activators are the ones that have ability to enhance the activity of a protein. These activators change the shape of active site by binding to some other site. Pyruvate dehydrogenase complex reaction is inhibited when the ratio of ATP to ADP gets high. When acetyl-CoA combines with  oxaloacetic acid to form citrate, it is inhibited by high level of ADP, ATP and NADH. Since ATP and ADP are final product of citric acid cycle, these work as allosteric activator and hence reduce the rate of cycle  

Hence, option A is correct

You might be interested in
What formations are made up of molten rock that has cooled
Hoochie [10]

These are called igneous rocks due to them being made from lava from an volcanoe eruption,

7 0
2 years ago
A metamorphic rock can be classified according to its _____.
hoa [83]
Color and composition
4 0
2 years ago
Read 2 more answers
Which statement (related to body directions) is true?
jek_recluse [69]
The best answer to the question above is <span>The elbow is distal to the wrist.

Our body is made up of eight regions. To avoid confusion, there are c</span><span>linical anatomy terms to describe these eight body regions. These are: 
</span><span>Superior, </span><span>Inferior, </span><span>Anterior.,</span><span>Posterior, </span><span>Median, </span><span>Medial, </span><span>Lateral, </span><span>Proximal, </span><span>Distal, </span><span>Superficial,</span><span> </span><span>.</span><span>Intermediate,</span><span> </span><span>Deep, </span><span>Unilateral, </span><span>Bilateral, </span><span>Ipsilateral, and </span><span>Contralateral.</span>
8 0
3 years ago
Read 2 more answers
What percent of the trees cut down are used for something other than paper?
ELEN [110]
Thirty-five percent of the trees cut down are used to make paper. That means sixty-five percent of the trees cut down are used for something other than paper. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 
7 0
3 years ago
Read 2 more answers
What was the goal of the Cassini-Huygens interplanetary space mission?
exis [7]
I think the answer is B
Hope this helps!!!:)
Have a good day!
7 0
3 years ago
Read 2 more answers
Other questions:
  • What do the equinoxes signify?
    12·2 answers
  • What separates the oral cavity from the nasal cavity when raised and in contact with the posterior pharyngeal wall?
    15·1 answer
  • New seafloor is constantly being created at the mid-ocean ridges, but the Earth is not getting bigger with time. Explain how thi
    12·1 answer
  • What do cells gain from having a mitochondria and chloroplasts
    13·2 answers
  • Which structural characteristic is found in both prokaryotic cells and eukaryotic cells? A. a cell membrane B. circular DNA C. a
    7·1 answer
  • What were some problems with Ptolemy's geocentric perspective of the solar system? Why was that not an acceptable explanation
    14·1 answer
  • What limits the maximum size of a cell
    8·2 answers
  • The GO phase is for cells that do not
    13·1 answer
  • Grows and regresses (it's shed) with each monthly cycle
    6·1 answer
  • What is happing to the DNA molecule during the 2nd step of the DNA
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!