BI SC 004 Study Guide - Quiz Guide: Cellular Respiration, Adipose Tissue, Glycogen
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QUESTION 1
An example of an endergonic reaction is
A. | Polymerizing a protein from amino acids. | |
B. | Breaking a protein down into amino acids. | |
C. | Breaking down ATP into ADP and P. | |
D. | Breaking down glucose (using oxygen) to make CO2 and H2O. |
QUESTION 2
When ATP breaks down to supply energy for cellular reactions, it often transfers its 3rd phosphate to another molecule. This is called ______, and makes the other molecule _______ reactive.
A. | catalysis . . . more | |
B. | phosphorylation . . . more | |
C. | phosphorylation . . . less | |
D. | polymerization . . . less |
QUESTION 3
Which is true of enzymes?
A. | They are highly specific in the reactions they catalyze. | |
B. | Chemically, most are carbohydrates. | |
C. | They accelerate reactions by adding energy. | |
D. | They break down and are used up as they catalyze reactions. |
QUESTION 4
What is peristalsis?
A. | Rings of muscle that can contract to close off the stomach at each end. | |
B. | A gland that secretes saliva. | |
C. | Coordinated muscle contractions that move the contents of the GI tract. | |
D. | A stomach enzyme that breaks down proteins. |
QUESTION 5
Which is not a component of gastric juice?
A. | H2O | |
B. | acid | |
C. | pepsin | |
D. | amylase | |
QUESTION 6
What does the enzyme pepsin do?
A. | Completely breaks down proteins into individual amino acids. | |
B. | Completely breaks down carbohydrates into monosaccharides. | |
C. | Partially breaks down proteins into smaller polypeptides. | |
D. | Partially breaks down fats into fatty acids. |