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
Galina-37 [17]
3 years ago
10

What happens to pyruvate molecules formed in glycolysis in the absence of oxygen?

Biology
1 answer:
Mars2501 [29]3 years ago
6 0
Absence of oxygen means anaerobic respiration ; which has 2 different pathways.

First Pathway ; Alcoholic fermentation which takes place in yeast.

Pyruvate is decarboxylated into ethanal releasing co2 as waste product.
Ethanal is toxic , so its reduced by help of NADH to ethanol in presence of alcohol dehydrogenase enzyme , and Free NAD is released to continue glycolysis.

2) The second pathway is Lactic fermentation which takes place in mammalian muscles.

Pyruvate accepts hydrogen and is converted to lactate by the help of enzyme lactate dehydrogenase , again free NAD is released to continue glycolysis.

Hope I made it clear enough :)
You might be interested in
Explain the organic evolution
maxonik [38]

Answer:

The Theories of Organic Evolution explains convincing the origin of life. It also explains how the wide variety of plants and animals came into existence in the world. According to this theory, the world has been evolved and not been created.

Explanation:

8 0
2 years ago
Read 2 more answers
What factors affect how organisms are distributed in the ocean?
Sergeu [11.5K]

I'm pretty sure these include light availability, oxygen levels, water movement, salinity, density and pH. These conditions often vary from habitat to habitat and will either support or limit the life processes of the marine organisms living there.

Hopefully that's right.

6 0
3 years ago
In order to contain groundwater, a layer of subsoil must have porosity. That is, it must have empty spaces, or pores. In order t
Dafna1 [17]

the answer is B the pores must be connected to each other

7 0
3 years ago
Question 11
vladimir2022 [97]

Answer:

Inversion

Explanation:

The chromosomal mutations are deletion, duplication, inversion, and translocation.

Inversion is the only one listed

4 0
3 years ago
8 letter word: living thing that eats other living things
valina [46]
Omnivore is your answer as i know
6 0
3 years ago
Other questions:
  • Advertising objectives can be classified based on three primary purposes. what are the three​ purposes?
    11·1 answer
  • Observations of organisms include
    9·2 answers
  • List 4 characteristics physical properties that distinguish the metallic elements from the non metallic elements.
    5·1 answer
  • Characteristics of the alexandrium catenella?
    15·1 answer
  • What is the muscle focus when performing the neck stretch? a pectoralis major b sternomastoid and trapezius c quadriceps d abdom
    14·2 answers
  • If a sound is softer or a light is dimmer, what does this mean about the amplitude of the wave?
    14·1 answer
  • Which weather event usually includes heavy precipitation, strong circulating winds, develops over water, and has warmer surface
    12·1 answer
  • A fossilized fish is found that has jaws but no true bones. Where does this fossil belong on the cladogram?​
    15·1 answer
  • If a person is suffering from severe dehydration and does not have enough water in his or her cells, a physician might give the
    15·1 answer
  • An organism that uses light energy to form ATP and can only grow on organic carbon sources is called a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!