__________ refers to reactions in which small molecules are used to build larger molecules.
a. Metabolism
b. Anabolism
c. Carboxylation
d. Catabolism
answer
B
Anabolism refers to the building of macromolecules from smaller precursors (e.g., building proteins from amino acids).
question
What is the primary function of cellular respiration?
a. to oxidize glucose
b. to produce proteins
c. to metabolize nutrients
d. to regenerate ATP
answer
D
Cellular respiration takes energy from our food nutrients and transfers that energy into a usable form of energy in ATP.
question
Glycogenesis occurs when ATP levels are high and glucose is abundant.
True
False
answer
True
Glycogenesis is the process of forming glycogen. This occurs when energy levels are high and glucose can be spared.
question
The energy stored in ATP comes from which of the following?
a. kinetic energy
b. adenosine triphosphate
c. heat
d. food molecules
answer
D
Excellent! The chemical energy stored in the food molecules we eat is used during cellular respiration to produce ATP.
question
How is ATP used in our bodies?
a. ATP is used to make potential energy.
b. It is used to create more energy.
c. The energy released from ATP is converted into kinetic energy to do work.
d. It is converted to ADP for storage
answer
C
Excellent!
question
Which of the following is NOT catabolic?
a. beta oxidation of fatty acids
b. glycolysis
c. lipogenesis
d. lipolysis
answer
C
Lipogenesis is the synthesis, or anabolic process, of building triglycerides.
question
__________ is the key hormone regulator of the postabsorptive state.
a. Insulin
b. Glucagon
c. Parathyroid hormone
d. Cortisol
answer
B
Glucagon raises the blood glucose level and is the key hormone used to handle the postabsorptive state.
question
Which of these happens during the postabsorptive state?
a. Blood glucose levels are maintained within an adequate range.
b. Fat reserves are built.
c. Glycogen is formed.
d. Glucose is broken down in the liver.
answer
a
After glucose levels stabilize after a meal, the body tries to maintain the blood sugar until the next meal.
question
Glycogenolysis is the...
a. Breakdown of glycogen to release glucose.
b. Formation of glucose from proteins or fats.
c. Storage of glucose in the form of glycogen.
d. Breakdown of glucose to pyruvic acid.
answer
A
question
Gluconeogenesis is the...
a. Breakdown of glycogen to release glucose.
b. Formation of glucose from proteins or fats.
c. Storage of glucose in the form of glycogen.
d. Breakdown of glucose to pyruvic acid.
answer
b
question
glycolysis is the...
a. Breakdown of glycogen to release glucose.
b. Formation of glucose from proteins or fats.
c. Storage of glucose in the form of glycogen.
d. Breakdown of glucose to pyruvic acid.
answer
D
question
Glycogenesis is the...
a. Breakdown of glycogen to release glucose.
b. Formation of glucose from proteins or fats.
c. Storage of glucose in the form of glycogen.
d. Breakdown of glucose to pyruvic acid.
answer
C
question
Which of the following does NOT occur in the mitochondria?
a. citric acid (Krebs) cycle
b. electron transport
c. formation of malic acid from fumaric acid
d. glycolysis
answer
D
question
The process of breaking triglycerides down into glycerol and fatty acids is known as ________.
a. lipolysis
b. gluconeogenesis
c. fat utilization
d. lipogenesis
answer
A
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