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Biological Molecules Online Exam Quiz

Important questions about Biological Molecules. Biological Molecules MCQ questions with answers. Biological Molecules exam questions and answers for students and interviews.

Lipids provide insulation against cold and hot weather to exoskeleton of insects in form of

Options

A : a. cutin

B : b. waxes

C : c. cholesterol

D : d. oil

On hydrolysis, sucrose gives one glucose and one

Options

A : a. fructose

B : b. maltose

C : c. lactose

D : d. ribose

A large and important group of compound which can be made by repetition of simple isoprenoid units, is called

Options

A : a. Terpenoids

B : b. steroids

C : c. carotenoids

D : d. terpenses

Scientist who first isolated nuclei of pus cells was

Options

A : a. F.Sanger

B : b. M.steward

C : c. F.Miescher

D : d. A.Einstein

Tetroses are not very common, they are found rare in nature and in few

Options

A : a. viruses

B : b. bacteria

C : c. plants

D : d. animals

NAD is an abbreviation for

Options

A : a. Nicotine Abusive Department

B : b. Nicotine Avoid Directions

C : c. Nicotinamide adenine dinucleotide

D : d. Nicotinamide dinucleotide

A protein which act as a carrier and transport oxygen and carbon dioxide in human body is known as

Options

A : a. hemoglobin

B : b. immunoglobulin

C : c. lipids

D : d. antibody

Greater number of carbon atoms in chain results in higher

Options

A : a. melting point

B : b. boiling point

C : c. freezing point

D : d. stability

Number of nucleotide in a tRNA chain length is

Options

A : a. 70-90

B : b. 75-95

C : c. 70-80

D : d. 75-90

Main sources of carbohydrates are

Options

A : a. milk

B : b. water

C : c. green plants

D : d. proteins

Sequence if amino acids in DNA can be determined by order of

Options

A : a. mRNA

B : b. tRNA

C : c. rRNA

D : d. nucleotides

Phosphoric acid can be joined with OH group of a pentose sugar with help of

Options

A : a. phosphodiester bond

B : b. ionic bond

C : c. covalent bond

D : d. ester linkage

Proteins are classified into two groups, i.e. Fibrous proteins and

Options

A : a. glandular proteins

B : b. globular proteins

C : c. Enzymatic proteins

D : d. Storage proteins

RNA is synthesized from DNA by process of

Options

A : a. translation

B : b. transcription

C : c. transgenic

D : d. duplication

Anabolism and catabolism are types of

Options

A : a. chemical reaction

B : b. chain reactions

C : c. metabolism

D : d. complex reactions

Chemical composition of an acylglycerols is esters of fatty acids and

Options

A : a. bases

B : b. alcohol

C : c. water

D : d. acids

Microorganisms secrete an enzyme which helps in digestion of cellulose known as

Options

A : a. cellulase

B : b. catalase

C : c. sucrase

D : d. pepsin

Derivatives of phosphatidic acid, which are composed of glycerol, fatty acids and phosphoric acids are known as

Options

A : a. phospholipids

B : b. acylghycerols

C : c. triglycerides

D : d. esters

Maurice Wilkins and Rosalind Franklin determine structure of DNA using technique called

Options

A : a. X-ray Diffraction

B : b. X-ray Refraction

C : c. X-ray Reflection

D : d. Y-ray Refraction

Lipids which are fats and oils are lighter, than water therefore have a specific gravity of about

Options

A : a. 0.6

B : b. 0.8

C : c. 0.9

D : d. 0.1

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