Biology 242 – Lecture
Chapter 25 (Metabolism + Nutrition)
Practice Quiz
I. Circle the letter preceding the one best answer to each question:
1. Which of these processes is anabolic? A. Pyruvic acid → CO2 + H2O + ATP
B. Glycogenolysis
C. Glucose → pyruvic acid + ATP D. Protein synthesis
E. Digestion of starch to maltose
2. Which of the following can be represented by the equation: Glucose → pyruvic acids + small amount of ATP
A. Glycolysis
B. Acetyl CoA formation
C. Krebs cycle
D. Electron Transport System
3. The process of forming glucose from amino acids or glycerol is called
A. Glycolysis
B. Glycogenolysis
C. Glycogenesis
D. Gluconeogenesis
4. Choose the false phrase about vitamins: A. many act as parts of enzymes or coenzymes
B. they regulate physiological processes C. most are synthesized by the body D. they are organic compounds
5. Choose the false statement about temperature regulation:
A. Some aspects of fever are beneficial. B. Fever is believed to be due to a “resetting of the body’s thermostat”.
C. Vasoconstriction of blood vessels in skin tends to conserve heat.
D. Heat-producing mechanisms that occur when in a cold environment are primarily parasympathetic.
6. Which of the following vitamins is water-soluble?
A. A
B. C
C. D
D. E
E. K
II. Circle T (True) or F (False). If the statement is false, cross out the word(s) that make it false and
write in an appropriate correction so that the statement now becomes a true statement.
T F 7. The ETS (Electron Transport System) is located in the mitochondria.
T F 8. Carbohydrates, proteins, and vitamins provide energy and serve as building materials.
T F 9. FAD delivers its hydrogen-ion cargo to the ETS at a higher energy level than does NAD+.
T F 10. The hydrogen ion cargo delivered by FAD yields more ATP than does the cargo delivered by NAD+.
T F 11. Lipids are first absorbed out of the GI tract as micelles into the specialized lymphatic structures
called lacteals.
III. Using the blanks provided, fill in the word or phrase that best fits the description given:
__________________________12. Finish the following chemical equation representing aerobic respiration:
Glucose + 6 O2 + 36-38 ADP + 36-38 Pi → (now fill in the rest)
_____________-____________13. Name two hormones that stimulate glycogen catabolism; and where
_____________-____________
each is produced.
__________________________14. These are the four “levels” of respiration (Hint: each tracks with the
__________________________
movement of O2 into the body and its final destination; and with the
__________________________
movement of CO2 out of the body as a waste product.)
__________________________