Nucleus And Aerobic Respiration(Cell Biology ) Questions and Answers
Question 1. The enzyme aconitase is responsible for ________________
polymerization
degradation
assembly
isomerization
Explanation:-
Answer: Option D. -> isomerization Answer: (d).isomerization
Question 2. For each molecule of glucose, how many times does the TCA cycle proceed?
1
2
3
4
Explanation:-
Answer: Option B. -> 2 Answer: (b).2
Question 3. The contribution made by electric potential versus pH gradient to the proton motive force (Δp) is determined by which property of the mitochondrial membrane?
thickness
position in the cell
permeability
number of cristae
Explanation:-
Answer: Option C. -> permeability Answer: (c).permeability
Question 4. Proton motive force is the net sum of how many gradient components?
1
2
3
4
Explanation:-
Answer: Option B. -> 2 Answer: (b).2
Question 5. The free energy released during electron transport is utilized to move protons from _____________ to inner membrane and cytosol.
extracellular environment
outer membrane
nucleus
matrix
Explanation:-
Answer: Option D. -> matrix Answer: (d).matrix
Question 6. Porins are present in ____________
Inner membrane
Outer membrane
Both inner and outer membrane
Intermembrane space
Explanation:-
Answer: Option C. -> Both inner and outer membrane Answer: (c).Both inner and outer membrane
Question 7. Human mitochondrial DNA encodes for _________
21 tRNAs
31 tRNAs
22 tRNA
24 tRNAs
Explanation:-
Answer: Option C. -> 22 tRNA Answer: (c).22 tRNA
Question 8. The mitochondrial RNA polymerase is made up of _____________
1 subunit
2 subunits
3 subunits
multiple subunits
Explanation:-
Answer: Option A. -> 1 subunit Answer: (a).1 subunit
Question 9. The mitochondrial DNA in humans encode for how many poplypeptides?
15
13
12
11
Explanation:-
Answer: Option B. -> 13 Answer: (b).13
Question 10. Human mitochondrial DNA encodes for ____________
