Discussion
Home ‣ Biochemistry ‣ Cell Structure and Compartments See What Others Are Saying!
- Question
What do dystrophin, utrophin, actin, and tubulin have to do with eukaryotic cell structure and function?
Options- A. They are components in the reactions of photosynthesis
- B. They all participate in the degradation of large amounts of ATP
- C. They all participate in the production of large amounts of ATP
- D. They are all embedded proteins in plasma membranes
- Correct Answer
- They all participate in the production of large amounts of ATP
- 1. Eukaryotic mRNA binding to the ribosomes is facilitated by __________ .
Options- A. the Shine Dalgarno sequence
- B. the 7-methyl guanosine cap
- C. tRNA
- D. poly A tail Discuss
- 2. Enzyme-driven metabolic pathways can be made more efficient by
Options- A. concentrating enzymes within specific cellular compartments
- B. grouping enzymes into free-floating, multienzyme complexes
- C. fixing enzymes into membranes so that they are adjacent to each other
- D. All of the above Discuss
- 3. In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2?
A ---(E1)---> B ---(E2)---> C ---(E3)--->
Options- A. A, B, C, and D will all still be produced
- B. A, B, and C will still be produced, but not D
- C. A and B will still be produced, but not C or D
- D. A will still be produced, but not B, C, or D Discuss
- 4. Which of the three subunits of the G proteins binds GDP and GTP?
Options- A. Alpha
- B. Beta
- C. Gamma
- D. Delta Discuss
- 5. Multiple copies of 5S genes, located at a chromosomal site distinct from the other rRNA genes
Options- A. are transcribed by rRNA polymerase III and the 5S rRNA
- B. are transcribed by rRNA polymerase II
- C. are transcribed by rRNA polymerase I and the 5S rRNA
- D. are transcribed by DNA polymerase I Discuss
- 6. Proteins separation can be carried out on the basis of
Options- A. net charge
- B. solubility in salt solutions
- C. size or mass
- D. all of these Discuss
- 7. Phosphofructokinase, the major flux-controlling enzyme of glycolysis is allosterically inhibited and activated respectively by
Options- A. ATP and PEP
- B. AMP and Pi
- C. ATP and ADP
- D. Citrate and ATP Discuss
- 8. RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________
Options- A. translation, RNA polymerase
- B. transcription, DNA polymerase
- C. transcription, RNA polymerase
- D. replication, DNA polymerase Discuss
- 9. Degenerated codon differs mostly in
Options- A. the identities of their second base
- B. the identities of their third base
- C. the wobble position
- D. both (b) and (c) Discuss
- 10. Transcription begins
Options- A. at the start codon
- B. upstream from the start codon
- C. downstream from the start codon
- D. none of these Discuss
More questions
Correct Answer: the 7-methyl guanosine cap
Correct Answer: All of the above
Correct Answer: A and B will still be produced, but not C or D
Correct Answer: Alpha
Correct Answer: are transcribed by rRNA polymerase III and the 5S rRNA
Correct Answer: all of these
Correct Answer: ATP and ADP
Correct Answer: transcription, RNA polymerase
Correct Answer: both (b) and (c)
Correct Answer: upstream from the start codon
Comments
There are no comments.More in Biochemistry:
Programming
Copyright ©CuriousTab. All rights reserved.