Biology Multiple Choice Questions and Answers for Different Competitive Exams

MCQ on Mitochondria

11. The inner membrane of the mitochondria is usually, highly convoluted forming a series of infolding known as
mitochondrial inner structure
a) thylakoids
b) lamellae
c) cristae
d) grana
12.  Oxysomes of F0-F1 particles occur on
a)  Thylakoids
b) Mitochondrial surface
c) chloroplast surface
d) inner mitochondrial membrane
13. Select the wrong statements from the following.
a) Both chloroplast and mitochondria contain an inner and outer membrane
b) both chloroplast and mitochondria have an internal compartment, the thylakoid space bound by the thylakoid membrane
c) the chloroplasts are generally mush larger than mitochondria
d)Both chloroplast and mitochondria contain DNA
14. Which of the following statements regarding mitochondrial membrane is not correct?
a)  the outer membrane resembles a sieve
b) the enzymes of the electron transfer chain are embedded in the outer membrane
c) The outer membrane is permeable to all kinds of molecules
d)  the outer membrane permeable to all kinds of molecules
15. In mitochondria , cristae act as sites for
a)  protein synthesis
b) phosphoryaltion of flavoproteins
c) breakdown of macromolecules
d) Oxidation reduction reaction
16.Mitochondrial inner membrane is rich in phospholipid
a) Cardiolipin
b) Phosphatidyl inositol
c) Phosphatidyl serine
d) Phosphatidyl choline
17. All the statements are true except
a) Mitochondria are called as the “power plants or power houses” of the cell
b) Mitochondrial DNA is called mt DNA
c) Mitochondria is the site of oxidative phosphorylation and Krebs cycle
d) Mitochondria is the site of Calvin cycle
18. Which of the following is not a function of mitochondrion
a) electron transport cahin and associated ATP production
b) glycolysis and associated ATP production
c) Fatty acid breakdown
d) non-shivering thermogenesis
19. mt DNA is
mitochondrial genome
a) simple, double stranded linear DNA molecule
b) simple, single stranded linear DNA molecule
c) simple, single stranded circular DNA molecule
d) simple, double stranded circular DNA molecule
20. The inner mitochondrial membrane has
a) NADH dehydrogenase complex
b) b-c1 complex
c) cytochrome oxidase complex
d) all of these
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Answers
11. c) cristae
12. d) inner mitochondrial membrane
13. b) both chloroplast and mitochondria have an internal compartment, the thylakoid space bound by the thylakoid membrane (Refer: Mitochondria and Chloroplast)
14. b) the enzymes of the electron transfer chain are embedded in the outer membrane  
15. d) Oxidation reduction reaction
16. a) Cardiolipin
17. d) Mitochondria is the site of Calvin cycle
18. b) glycolysis and associated ATP production
19. d) simple, double stranded circular DNA molecule
20. d) all of these
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