BIOCHEM LEC QUIZ 1

Nucleus is the central unit of the cell. It contains _______ that bear the genetic material.

• Chromosomes

• Choromosomes

• Ribosomes

• Ribossomes

• NO ANSWER

What are the 4 parts of an amino acid?

• Hydrogen, Amino group, Carbonyl Group and R group

• Hydrogen, Amino group, Carboxyl group and R group

• Water, Amino group, carboxyl group and R group

• Water, Amino group, carbonyl group and R group

• NO ANSWER

Which of the following statement is/are incorrect?

I. Mitochondria generates most of the

chemical energy needed to power the cell’s biochemical reaction

II. Rough and Strong ER are the types of Endoplasmic Recticulum.

III. Chlorophyll is the site of protein synthesis.

IV. Cell membrane controls the entry and

exit of substances in the cell

• I only

• I, II and III

• II and III

• II, III and IV

• IV only

Trichothiodystrophy is a heterogeneous

group disorders characterized by short

brittle hair with low _____ content.

• Oxygen

• Cysteine

• Sulphur

• Water

• CO2

DNA stands for what?

• denoxyyribonucleic acid

• deoxyyribonucleic acid

• detoxyribonucleic acid

• dexoxyribonucleic acid

• NO ANSWER

What will happen to the genetic code within the ribosomes?

• converted into protein molecules

• converted into water molecules

• converted into CO2

• converted into CO2 and water

• converted into carbohydrates

If DNA is ready to be divided, it will condenses into what?

• Nucleus

• Enzymes

• Nucleic Acids

• Ribosomes

• Chromosomes

All of the following are included in a plant cell EXCEPT?

• Chloroplasts

• Cell Wall

• Vacuole

• Centrioles

• Plasmodesmata

The most common elements in the body are:

• C, O, NO, H

• H, C, N, O

• O, Co, N, He

• Ne, O, Co, He

• Os, Cs, Ne, H

Lipids comprise very heterogeneous

group of compounds which are insoluble

in water but soluble in non-polar organic

solvents. Which of the following is not a non-polar organic solvents? such as benzene, chloroform

and ether.

• Benzene

• Ether

• Chloroform

• Toluene

• Ethanol