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- Question
A eukaryotic cell that can carry out only fermentation instead of the complete aerobic respiration of glucose
Options- A. produces less CO2
- B. is lacking in O2
- C. has mitochondria present
- D. all of these
- Correct Answer
- all of these
- 1. The cytochrome c oxidase complex
Options- A. accepts electrons from cyt c
- B. donates four electrons to O2
- C. pumps protons out of the matrix space
- D. all of these Discuss
- 2. Fatty acids break down of eukaryotes occurs in
Options- A. mitochondrial matrix
- B. cell membrane
- C. cytosol
- D. endoplasmic reticulum Discuss
- 3. In ?-pleated sheet structures neighbouring
Options- A. chains lie in a flat plane
- B. neighboring residues are hydrogen bonded
- C. neighboring chains are connected by a-helices
- D. neighboring chains are hydrogen bonded Discuss
- 4. In deoxy hemoglobin (Hb), the Fe (II) is coordinated to
Options- A. four nitrogens of heme, the proximal His, and a water molecule
- B. four nitrogens of heme and to a water molecule
- C. two nitrogens of heme and to three His residues in Hb
- D. two nitrogens of heme and to three water molecules Discuss
- 5. Proteins contain __________ different amino acids, whereas DNA and RNA are composed of __________ different nucleotides
Options- A. 20,64
- B. 3,20
- C. 4,20
- D. 20,4 Discuss
- 6. What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample?
Options- A. Spin - lattice relaxation
- B. Spin - spin relaxation
- C. Spin - spin - spin relaxation
- D. None of these Discuss
- 7. At the midpoint of a temperature transition curve,
Options- A. half of the protein is denatured
- B. Keq = 1.0 and ?G = 0
- C. [Native] = [Unfolded]
- D. All of these Discuss
- 8. Electrophoresis of histones and myoglobin under non-denaturing conditions (pH = 7.0) results in
Options- A. both proteins migrate to the anode
- B. histones migrate to the anode and myoglobin migrates to the cathode
- C. histones migrate to the cathode and myoglobin migrates to the anode
- D. both proteins migrate to the cathode Discuss
- 9. In isoelectric focusing, proteins are separated on the basis of their
Options- A. relative content of positively charged residue only
- B. relative content of negatively charged residue only
- C. size
- D. relative content of positively and negatively charged residue Discuss
- 10. In a gel filtration column
Options- A. smaller proteins enter the beads more readily
- B. large proteins elute first
- C. both (a) and (b)
- D. large proteins enter the beads more readily Discuss
More questions
Correct Answer: all of these
Correct Answer: mitochondrial matrix
Correct Answer: neighboring chains are hydrogen bonded
Correct Answer: four nitrogens of heme, the proximal His, and a water molecule
Correct Answer: 20,4
Correct Answer: Spin - lattice relaxation
Correct Answer: All of these
Correct Answer: histones migrate to the cathode and myoglobin migrates to the anode
Correct Answer: relative content of positively and negatively charged residue
Correct Answer: both (a) and (b)
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