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- Question
The highly folded membranes found in such eukaryotic organelles as mitochondria and chloroplasts
Options- A. increase the surface area where key chemical processes can occur
- B. help the cell against physical damage
- C. make it possible to package large amounts of DNA within the cell
- D. assist with cell movement
- Correct Answer
- increase the surface area where key chemical processes can occur
- 1. 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
- 2. 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
- 3. Hydrolysis of lactose yields
Options- A. galactose and fructose
- B. galactose and glucose
- C. glucose and fructose
- D. fructose and galactose Discuss
- 4. 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
- 5. 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
- 6. Acyl carrier protein (ACP) plays an important role in the biosynthesis of
Options- A. fatty acids
- B. amino acids
- C. sugars
- D. carbohydrates Discuss
- 7. 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
- 8. From a single molecule of DNA, PCR can make
Options- A. one additional copy
- B. hundreds of copies
- C. thousands of copies
- D. millions of copies Discuss
- 9. If the F and Y angles of each peptide unit in a protein are known, which of the following may also be determined?
Options- A. Complete secondary structure
- B. Complete tertiary structure
- C. Complete quaternary structure
- D. Thermodynamic stability Discuss
- 10. Plant transformation can be obtained by
Options- A. combining plant and animal cells in culture
- B. shooting DNA into plant cells with a gun
- C. using the E. coli bacterium to infect plant roots
- D. infecting plants with a tobacco mosaic virus Discuss
More questions
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
Correct Answer: millions of copies
Correct Answer: Complete secondary structure
Correct Answer: shooting DNA into plant cells with a gun
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