Biochemistry Questions and Answers Part-2

1. Which of the following statement is correct about membrane cholesterol?
a) The hydroxyl group is located near the centre of the lipid layer
b) Most of the cholesterol is in the form of a cholesterol ester
c) The steroid nucleus form forms a rigid, planar structure
d) The hydrocarbon chain of cholesterol projects into the extracellular fluid

Answer: c

2. Which one is the heaviest particulate component of the cell?
a) Nucleus
b) Mitochondria
c) Cytoplasm
d) Golgi apparatus

Answer: a

3. Which one is the largest particulate of the cytoplasm?
a) Lysosomes
b) Mitochondria
c) Golgi apparatus
d) Entoplasmic reticulum

Answer: b

4. The degradative Processess are categorized under the heading of
a) Anabolism
b) Catabolism
c) Metabolism
d) None of the above

Answer: b

5. The exchange of material takes place
a) Only by diffusion
b) Only by active transport
c) Only by pinocytosis
d) All of these

Answer: d

6. The pH of blood is 7.4 when the ratio between H2CO3 and NaHCO3 is
a) 1:10
b) 1:20
c) 1:25
d) 1:30

Answer: b

7. The average pH of Urine is
a) 7.0
b) 6.0
c) 8.0
d) 0.0

Answer: b

8. The phenomenon of osmosis is opposite to that of
a) Diffusion
b) Effusion
c) Affusion
d) Coagulation

Answer: a

9. The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by
a) Bile Salts
b) Bile acids
c) Conc. H2SO4
d) Acetic acid

Answer: a

10. Which of the following is located in the mitochondria?
a) Cytochrome oxidase
b) Succinate dehydrogenase
c) Dihydrolipoyl dehydrogenase
d) All of these

Answer: d