If cells are grown in a medium containing radioactive 32P-labeled phosphate, which of these molecules will be labeled?
A) proteins
B) cellulose
C) amino acids
D) nucleic acids
E) glucose
Answer: E
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How does the digestion and absorption of fat differ from that of carbohydrates?
A. Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does. B. Fat absorption occurs in the stomach, whereas carbohydrates are absorbed from the small intestine. C. Carbohydrates need to be emulsified before they can be digested, whereas fats do not. D. Most absorbed fat enters the lymphatic system, whereas carbohydrates directly enter the blood. E. Fat must be partially digested by bacteria in the large intestine before it can be absorbed, which is not the case for carbohydrates.
CO2 + 6 H2O ? C6H12O6 + 6 O2
Which of the following is FALSE?
a. Water is a reactant. b. C6H12O6 is a product. c. Molecular oxygen is a product. d. CO2 is a reactant. e. Molecular carbon is a reactant.
A plate of solid growth medium with colonies on it is pressed gently onto sterile velveteen. The
velveteen "stamp" is used to make identical plates. This technique is called:
a. replication. b. replica plating. c. plating. d. plate making. e. horizontal gene transfer
One way two competing species can coexist in the same area is via
A) having the same competition coefficient. B) zero-growth isoclines. C) competitive exclusion. D) niche differentiation.