What is the role of oxygen gas in aerobic respiration?
a. To provide electrons for NADH
b. To accept energy from glucose
c. To accept electrons from electron transport
d. To provide kinetic energy for ATP synthase
e. To donate electrons for electron transport
ANSWER: c
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An evolutionary advantage of the endoskeleton is that it (choose all correct answer options):
A. allows growth of fairly large organisms. B. protects vital internal organs. C. provides a structure on which muscles can pull for an organism to move. D. makes the process of reproduction more efficient.
The amoeba E. histolytica is a pathogen that causes liver abscesses in infected individuals. Which of the following represents the most likely metabolic classification?
a. aerobic phototroph b. anaerobic heterotroph c. mixotroph d. phagocytic autotroph
An RNA molecule is typically _____ ; a DNA molecule is typically _____
a. single-stranded; double-stranded b. double-stranded; single-stranded c. both are single-stranded d. both are double-stranded
You cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered snapdragon. All of the F1 are pink. What can you say about the alleles for the parental traits?
A. Both red and white are recessive. B. Red and white show incomplete dominance. C. Pink is dominant, whereas red and white are recessive. D. Red is dominant.