(Latest Update ) Cell
Biology | Questions & Answers |
Grade A | 100% Correct - FGCU
Question:
List the 3 major metabolic pathways that complete the oxidation of glucose
Answer:
glycolysis, citric acid cycle, oxidative phosphorylation
Question:
What are the 3 outputs of glycolysis? Where is most of the energy at the end
of that pathway?
Answer:
2 molecules of pyruvate, 2 molecules of ATP (net gain), and 2 molecules of
NADH. most of the energy from the original glucose molecule is still stored in
the pyruvate molecules
,Question:
Explain why 2 ATP are needed in glycolysis
Answer:
to phosphorylate glucose and its early derivatives
Question:
Where does glycolysis occur? Is it aerobic or anaerobic?
Answer:
in the cytoplasm of cells and is an anaerobic process
Question:
What is the function of NADH?
Answer:
generating energy
Question:
What is the main function of glycolysis?
Answer:
break down glucose to produce energy in the form of ATP
,Question:
Is fermentation aerobic or anaerobic? Where does it occur in the cell?
Answer:
cytoplasm, anaerobic
Question:
What type of phosphorylation occurs in fermentation? (substrate level or
oxidative)
Answer:
substrate-level phosphorylation
Question:
What does the metabolic pathway of fermentation produce?
Answer:
lactic acid, ethanol, and carbon dioxide
Question:
Who is reduced and who is oxidized in alcohol fermentation?
Answer:
NADH is oxidized to NAD+, and acetaldehyde is reduced to ethanol
, Question:
Who is reduced and who is oxidized in lactic acid fermentation?
Answer:
pyruvate is reduced to form lactic acid, while NADH is oxidized to form
NAD+
Question:
List the 3 steps of converting pyruvate to acetyl-CoA
Answer:
Decarboxylation, Oxidation, Acetyl Transfer
Question:
Where does the citric acid cycle occur?
Answer:
mitochondrial matrix
Question:
What is the main function of the citric acid cycle?
Answer:
to produce energy for the cell