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
kakasveta [241]
3 years ago
8

What must happen to pyruvate before it can enter the kreb’s cycle? explain.

Biology
2 answers:
NNADVOKAT [17]3 years ago
5 0

Answer: Pyruvate is further oxidized to acetyl CoA before it can enter the Krebs cycle.

Explanation: Pyruvate is a three carbon compound. Before pyruvate can enter the Krebs cycle, it must be oxidized to acetyl CoA and carbon dioxide. The acetyl CoA then enters the Krebs cycle.

This reaction is an oxidative decarboxylation, an irreversible oxidation process in which the carboxyl group is removed from pyruvate as a molecule of carbon dioxide, and the two remaining carbons become the acetyl group of acetyl CoA.

The overall reaction of oxidation of pyruvate to acetyl CoA is catalyzed by an enzyme known as pyruvate dehydrogenase complex.

elena-s [515]3 years ago
4 0

i think that before the Krebs cycle begins, pyruvic acid, which has three carbon atoms, is split apart and combined with an enzyme known as CoA.

You might be interested in
What are some of the short-term risks associated with smoking? (Site 2)
melamori03 [73]
Tachycardia, cough, sore throat, asthma, nausea, and vomiting are among the short-term risks associated with smoking
4 0
3 years ago
Read 2 more answers
Define biogeochemical cycle.
Leokris [45]

Answer:

Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circulated. The term biogeochemical is a contraction that refers to the consideration of the biological, geological, and chemical aspects of each cycle.

4 0
3 years ago
Read 2 more answers
A new marine animal species has been discovered. Locomotion is via a muscular foot. Digestive, nervous, excretory, reproductive,
zzz [600]

Answer:

Mollusca Phylum

Gastropoda class

Explanation:

The Mollusca Phylum is one of the most noticeable phyla that includes a wide variety of forms.

The ancestral Mollusca used to habit the pre-cambric oceans. It was bilaterally symmetrical, with a well-defined head that had tentacles and ocellus. Its ventral surface was plane and muscular, shaping a reptant foot. The dorsal surface was protected with a convex and oval shell.

The Gastropoda class is the richest class among all mollusks. This class experienced a characteristic torsion in their shell. This twist also involved the visceral mass, the mantle, and the mantle cavity. But by the time that this torsion occurred, the shell had already experienced a turn into a coil shape, which was then followed by its torsion.

The typical gasteropod´s shell is a conical structure composed of several tubular spirals containing the individual´s visceral mass. The biggest spiral ends as an opening from which the head and the food protrude.

6 0
3 years ago
Read 2 more answers
Which best describes the flow of genetic information. A= genetic information is carried only by dna. B= genetic information flow
alexandr1967 [171]
The answer is C=genetic information flows from DNA to RNA to protein
6 0
3 years ago
Read 2 more answers
Muscles are responsible for all expect of blood formation
Anit [1.1K]
This sentance is true
5 0
3 years ago
Other questions:
  • why is tetracycline selectively toxic against bacteria Eukaryotic cells will enzymatically destroy the drug. Eukaryotic cells wi
    7·1 answer
  • During osmosis Group of answer choices pure solvent and a solution both diffuse at the same time through a membrane.
    10·1 answer
  • a group of scientists is studying the internal parts of the cell. Which microscope is most appropriate for these scientists to u
    14·2 answers
  • Why is there a larger biodiversity hot spot in New Zealand than Australia.migration of both animals and plants from Australia b.
    12·2 answers
  • Worth 10 i also need reasoning please help
    6·1 answer
  • Organisms are classified according to shared characteristics. This process has led to the development of a classification system
    7·2 answers
  • What is one possible positive outcome of global warming?
    8·1 answer
  • Why does shells have ribs?
    8·1 answer
  • NEED ANSWER ASAP
    13·1 answer
  • Lady Capulet asks Juliet if she could love Paris. What does Juliet mean by the line, "I'll look at him and try to like him, at l
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!