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
The middle layer of the meninges that surround the brain and the spinal cord is known as the __________.
Leni [432]

arachnoid

a fine, delicate membrane, the middle one of the three membranes or meninges that surround the brain and spinal cord, situated between the dura mater and the pia mater.

5 0
3 years ago
The digestion of _______ begins in the mouth.
REY [17]
Fat. Hope this helps
6 0
3 years ago
Read 2 more answers
HELP ME! Gold medal if you help and its right!!!
4vir4ik [10]
C)set maximum contaminant levels for pollutants in drinking water
6 0
3 years ago
Read 2 more answers
When amino acids are linked together to form chains the molecule formed is called what?
choli [55]

Answer:

Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.

Explanation:

7 0
3 years ago
Use the drop-down menus to complete each sentence.
Svetlanka [38]

Answer:

- <u>Eukaryotes</u> are organisms that contain more than one cell with membrane-bound organelles and a nucleus.

- Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as <u>prokaryotes</u>.

Explanation:

According to their structural and functional complexity, organisms can be classified into eukaryotes and prokaryotes.

  1. <em><u>Eukaryotic organisms</u></em><em> are formed by cells that have a true nucleus -where DNA is located- and specialized structures called organelles, with a system of endomembranes that compartmentalize the intracellular space. These organisms are usually pluricellular, given the ability of eukaryotic cells to group together to form tissues. </em>
  2. <em><u>Prokaryotic organisms</u></em><em> are single cells, lacking a nucleus - genetic material is scattered in the cytoplasm - and do not possess organelles.  The prokaryotic cells that form these organisms are incapable of binding together, so they do not form tissues.</em>

Some unicellular organisms are prokaryotic cells, like some parasitic microorganisms, such as amoebas.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A child brought to the emergency department is exhibiting significant signs of hypovolemic shock for which intravenous therapy i
    8·1 answer
  • Does the number of chromosomes correspond to the complexity of an organism?
    10·1 answer
  • Dr. Wright believes that heredity is primarily responsible for personality traits. Dr. DeJong believes that environmental influe
    7·1 answer
  • What the economic important of bacteria​
    10·1 answer
  • Which factors are involved in earthquake formation? Select three options. helppppp
    11·1 answer
  • Which of these is likely to result in a competitive relationship?
    8·1 answer
  • Which of these pictures show the last (most recent) in the sequence of
    14·2 answers
  • Compare the costs and benefits of living in a group of animals.​
    5·1 answer
  • Which of the following excerpts from “Samjay’s Dream” supports the idea that Samjay is not happy with his current path in life?
    9·2 answers
  • The Linnaean suborder prosimians includes Group of answer choices diurnal and nocturnal lemurs. diurnal and nocturnal galagos. o
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!