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Biochemistry

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

All are the functions of lipids EXCEPT

a)

Energy Provision

b)

Thermal insulation

c)

Antibody production

d)

Part of cell membrane

2.

Which of the following is NOT a type of lipid?

a)

Steroids

b)

Carbohydrates

c)

Triglycerides

d)

Phospholipids

3.

What is the primary role of phospholipids in the cell?

a)

Energy storage

b)

Cell membrane structure

c)

Hormone production

d)

Immune response

4.

Which of the following statements about lipids is TRUE?

a)

All lipids are soluble in water

b)

Lipids can serve as signaling molecules

c)

All lipids are solid at room temperature

d)

Lipids are not involved in energy storage

5.

Which of the following is a characteristic of both triacylglycerols and

glycerophospholipids?

a)

Both contain carboxyl groups and are amphipathic

b)

Both contain fatty acids and an alcohol.

c)

Both contain glycerol and ether bonds.

d)

Both can be negatively charged at cellular pH

e)

Both contain glycerol and a phosphate

6.

Lipoproteins rich in Triglycerides are

a)

Chylomicrons and LDL

b)

Chylomicrons and VLDL

c)

VLDL and LDL

d)

VLDL and HDL

e)

LDL and HDL

7.

Deficiency of thiamine is classically associated with which clinical condition?

a)

Pellagra

b)

Osteomacia

c)

Beriberi

d)

Scurvy

e)

Rickets

8.

Enzyme is a protein that:

a)

Inhibits catalysis

b)

Is not consumed after catalysis

c)

Stimulates cell division

d)

Increases reaction time

e)

Promotes energy expenditure

9.

What is the role of a coenzyme in an enzymatic reaction?

a)

It is an organic molecule that assists the enzyme in its catalytic activity.

b)

It is an inorganic molecule that assists the enzyme in its catalytic activity.

c)

It binds to the substrate and prevents enzyme activity.

d)

It denatures the enzyme after the reaction.

e)

It replaces the enzyme in the reaction.

10.

Regarding enzymes, Cofactors are:

a)

Organic compounds

b)

Soluble  vitamins

c)

Enzyme inhibitors

d)

Products of enzyme action

e)

Inorganic  substances