BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Glycolysis
Answer:
Set of reactions in the cytosol in which one glucose molecule is converted into 2
molecules of pyruvic acid
Q: Formation of acetyl coenzyme A
Answer:
-Pyruvic acid enters mitochondrial matrix and is converted
into a 2-carbon acetyl group
Acetyl group is then attached to coenzyme A, forming acetyl coenzyme A
Q: Krebs cycle (citric acid cycle)
Answer:
Series of reactions occurring in the mitochrondrial matrix that
involves the sequential conversion of one acid to another
,BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Electron transport chain
Answer:
Series of electron carriers (molecules in inner mitochondrial
membrane that can accept and donate electrons). Each carrier picks up electrons and
then
gives them up to another carrier in the chain
Q: Why is catabolism of glucose 4 steps?
Answer:
As a way to control how much heat is produced. If it occurred in only one step, so
much heat would be released that the reaction would be explosive
Q: Aerobic respiration
Answer:
Reactions of the Krebs cycle and electron transport chain require oxygen
so they are collectively referred to as this
,BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: When oxygen is not present during glycolysis...
Answer:
If oxygen is not available or present at a low
concentration, pyruvic acid generated during glycolysis is converted to lactic acid,
and the
remaining steps of cellular respiration do not occur
Q: Anaerobic glycolysis
Answer:
Process by which the breakdown of glucose gives rise to lactic acid
when oxygen is absent or present at a low concentration
Q: Glucose catabolism produces ___ ATP
Answer:
30 or 32. Various electron transfers of ETC generate
either 26 or 28 ATP molecules from each molecule of glucose catabolized. 4 ATP
molecules are
produced via substrate-level phosphorylation, so 26+4 = 30 or 28+4 = 32
, BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Glycogenesis
Answer:
Synthesis of glycogen, glucose is phosphorylated to glucose 6-phosphate by
enzyme hexokinase (further conversions occur to produce glycogen)
Q: Glycogenolysis
Answer:
Process of splitting glycogen into its glucose subunits. When body activities
require ATP, glycogen stored in hepatocytes is broken down into glucose and
released into the
blood to be transported to cells, where it will be catabolized by the processes of
cellular
respiration
Latest 2026 Update
Q: Glycolysis
Answer:
Set of reactions in the cytosol in which one glucose molecule is converted into 2
molecules of pyruvic acid
Q: Formation of acetyl coenzyme A
Answer:
-Pyruvic acid enters mitochondrial matrix and is converted
into a 2-carbon acetyl group
Acetyl group is then attached to coenzyme A, forming acetyl coenzyme A
Q: Krebs cycle (citric acid cycle)
Answer:
Series of reactions occurring in the mitochrondrial matrix that
involves the sequential conversion of one acid to another
,BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Electron transport chain
Answer:
Series of electron carriers (molecules in inner mitochondrial
membrane that can accept and donate electrons). Each carrier picks up electrons and
then
gives them up to another carrier in the chain
Q: Why is catabolism of glucose 4 steps?
Answer:
As a way to control how much heat is produced. If it occurred in only one step, so
much heat would be released that the reaction would be explosive
Q: Aerobic respiration
Answer:
Reactions of the Krebs cycle and electron transport chain require oxygen
so they are collectively referred to as this
,BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: When oxygen is not present during glycolysis...
Answer:
If oxygen is not available or present at a low
concentration, pyruvic acid generated during glycolysis is converted to lactic acid,
and the
remaining steps of cellular respiration do not occur
Q: Anaerobic glycolysis
Answer:
Process by which the breakdown of glucose gives rise to lactic acid
when oxygen is absent or present at a low concentration
Q: Glucose catabolism produces ___ ATP
Answer:
30 or 32. Various electron transfers of ETC generate
either 26 or 28 ATP molecules from each molecule of glucose catabolized. 4 ATP
molecules are
produced via substrate-level phosphorylation, so 26+4 = 30 or 28+4 = 32
, BIO 230 Unit 1 Quiz Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Glycogenesis
Answer:
Synthesis of glycogen, glucose is phosphorylated to glucose 6-phosphate by
enzyme hexokinase (further conversions occur to produce glycogen)
Q: Glycogenolysis
Answer:
Process of splitting glycogen into its glucose subunits. When body activities
require ATP, glycogen stored in hepatocytes is broken down into glucose and
released into the
blood to be transported to cells, where it will be catabolized by the processes of
cellular
respiration
