Living things combine elements in unique ways, creating molecules that nonliving things cannot create
a. true
b. false
Answer: a. true
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Once they have been processed through the citric acid cycle, the acetyl-CoA molecules from a single glucose molecule will produce:
A. 2 ATP, 6 NADH, 4 CO2. B. 6 NADH, 6 GTP. C. 6 FADH2, 2 ATP, 6 CO2. D. 6 GTP, 6 FADH2. E. 4 CO2, 6 FADH2, 2 ATP.
How does the protein Sic1 regulate the cell cycle?
a. Sic1 is a cyclin that binds to a Cdk to form a cyclin/Cdk complex, which regulates the G1 to S transition. b. Sic1 inhibits an S phase cyclin/CDK complex required for synthesis to occur c. Sic1 binds to a cyclin, to form a complex that regulates the G2 to M transition. d. Sic1 is a growth factor that binds to external receptors and promotes the transition from G1 to S. e. Sic1 is a cyclin that binds to a Cdk to form a cyclin/Cdk complex to regulate the G2 to M transition.
A material composed of atoms vibrating in place
A. has high kinetic energy and is a gas. B. has low kinetic energy and is a liquid. C. has low kinetic energy and is a solid. D. has high kinetic energy and is a solid.
Which is the most abundant kind of tissue in an animal, such as a gorilla?
A) connective B) epithelial C) muscle D) nervous