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- Question
Molar absorbtivities of compounds exhibiting charge transfer absorption are
Options- A. small
- B. moderate
- C. large
- D. none of these
- Correct Answer
- large
- 1. A certain cell organelle which is made of a double phospholipid bilayer that has many large pores in it, is most likely
Options- A. the nuclear envelope
- B. the plasma membrane
- C. the mitochondrion
- D. the cytoskeleton Discuss
- 2. Which of the following statements about G proteins is false?
Options- A. They are involved in signal cascades
- B. They bind to and are regulated by guanine nucleotides
- C. They become activated when bound to GDP
- D. They must be active before the cell can make needed cAMP Discuss
- 3. Disulfide bonds most often stabilize the native structure of
Options- A. extracellular proteins
- B. dimeric proteins
- C. hydrophobic proteins
- D. intracellular proteins Discuss
- 4. More ATP is manufactured during __________ than at any other time in all of cellular metabolism.
Options- A. fermentation
- B. glycolysis
- C. the light reactions of photosynthesis
- D. oxidative phosphorylation Discuss
- 5. What bands will be observed in a cesium chloride gradient after two rounds of replication?
Options- A. One light, one medium and one heavy band
- B. One light and one medium band
- C. One medium band
- D. One medium and one heavy band Discuss
- 6. Hydrolysis of lactose yields
Options- A. galactose and fructose
- B. galactose and glucose
- C. glucose and fructose
- D. fructose and galactose Discuss
- 7. In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is
Options- A. RNA polymerase I
- B. RNA polymerase II
- C. RNA polymerase III
- D. none of these Discuss
- 8. The function of the sigma factor of RNA polymerase is to
Options- A. assure that transcription begins at the proper point
- B. assure that transcription ends at the proper point
- C. assure that translation begins at the proper point
- D. assure that translation ends at the proper point Discuss
- 9. Acyl carrier protein (ACP) plays an important role in the biosynthesis of
Options- A. fatty acids
- B. amino acids
- C. sugars
- D. carbohydrates Discuss
- 10. What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7?
Options- A. 7
- B. 7 x 10-7
- C. 5 x 10-7
- D. 1 x 10-7 Discuss
More questions
Correct Answer: the nuclear envelope
Correct Answer: They become activated when bound to GDP
Correct Answer: extracellular proteins
Correct Answer: oxidative phosphorylation
Correct Answer: One light and one medium band
Correct Answer: galactose and glucose
Correct Answer: RNA polymerase II
Correct Answer: assure that transcription begins at the proper point
Correct Answer: fatty acids
Correct Answer: 1 x 10-7
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