BIOS 1700 EXAM 3 QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
In eukaryotic cells, glycolysis occurs in - ANS the cytoplasm.
Which of the following is an electron carrier in its reduced form? - ANS NADH and FADH2
The glycolysis stage is responsible for producing most of the ATP during cellular respiration.
True/False - ANS False
The citric acid cycle takes place in the: - ANS mitochondrial matrix.
The immediate source of electrons for the electron transport chain is: - ANS NADH and
FADH2.
Fermentation produces nearly twice as much ATP as aerobic respiration, which explains why it is
a preferred pathway for bacteria.
True/False - ANS False
The storage carbohydrate in animals is ___________ and in plants is __________. -
ANS glycogen; starch
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, In pyruvate oxidation, the electron donor is _____ and the electron acceptor is _____. -
ANS pyruvate; NAD+
In the cleavage phase of glycolysis: - ANS a phosphorylated sugar molecule is broken apart
and the products rearranged.
In what organelle is pyruvate oxidation carried out in a cell? - ANS mitochondrion
Each molecule of acetyl-CoA that enters the citric acid cycle carries two of the carbon atoms
from the original starting glucose molecule. These carbon atoms will ultimately leave the citric
acid cycle as carbon atoms in which of the following? - ANS CO2
Where does the F1 subunit of ATP synthase get its energy to catalyze the synthesis of ATP? -
ANS from rotational energy provided by the flow of protons through the channel in the Fo
subunit
Lactic acid fermentation occurs in: - ANS bacteria and animals.
Proteins can be broken down to extract energy. They are typically broken down into amino
acids, which then enter cellular respiration via: - ANS glycolysis or the citric acid cycle.
Cellular respiration is a series of _____ reactions. - ANS catabolic
Which of the following are inputs, but not outputs, of glycolysis? - ANS Glucose
When a single pyruvate is converted to acetyl-CoA during pyruvate oxidation, the other
products of the reaction are: - ANS NADH and CO2.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
ANSWERS GRADED A+ 2025/2026
In eukaryotic cells, glycolysis occurs in - ANS the cytoplasm.
Which of the following is an electron carrier in its reduced form? - ANS NADH and FADH2
The glycolysis stage is responsible for producing most of the ATP during cellular respiration.
True/False - ANS False
The citric acid cycle takes place in the: - ANS mitochondrial matrix.
The immediate source of electrons for the electron transport chain is: - ANS NADH and
FADH2.
Fermentation produces nearly twice as much ATP as aerobic respiration, which explains why it is
a preferred pathway for bacteria.
True/False - ANS False
The storage carbohydrate in animals is ___________ and in plants is __________. -
ANS glycogen; starch
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, In pyruvate oxidation, the electron donor is _____ and the electron acceptor is _____. -
ANS pyruvate; NAD+
In the cleavage phase of glycolysis: - ANS a phosphorylated sugar molecule is broken apart
and the products rearranged.
In what organelle is pyruvate oxidation carried out in a cell? - ANS mitochondrion
Each molecule of acetyl-CoA that enters the citric acid cycle carries two of the carbon atoms
from the original starting glucose molecule. These carbon atoms will ultimately leave the citric
acid cycle as carbon atoms in which of the following? - ANS CO2
Where does the F1 subunit of ATP synthase get its energy to catalyze the synthesis of ATP? -
ANS from rotational energy provided by the flow of protons through the channel in the Fo
subunit
Lactic acid fermentation occurs in: - ANS bacteria and animals.
Proteins can be broken down to extract energy. They are typically broken down into amino
acids, which then enter cellular respiration via: - ANS glycolysis or the citric acid cycle.
Cellular respiration is a series of _____ reactions. - ANS catabolic
Which of the following are inputs, but not outputs, of glycolysis? - ANS Glucose
When a single pyruvate is converted to acetyl-CoA during pyruvate oxidation, the other
products of the reaction are: - ANS NADH and CO2.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
