Free MCQs & Online Quiz Practice for Exams

Q: Which of the following is the best suited stain to study chromosomes?

A) Iodine solution

B) Leishman's stain

C) Feulgen's stain

D) Aniline blue

Q: The 'Scavengers' or 'Digestive bags' of a cell are

A) Chromosomes

B) Centrosomes

C) Lysosomes

D) Ribosomes

Q: Following are the functions of cytoskeleton EXCEPT

A) Maintaining cell shape

B) Movement

C) Contraction

D) Respiration

Q: Identify the mismatch in the following pairs:

A) Mitochondria - cellular respiration

B) Lysosome - intra cellular digestion

C) Microfilament - cyclosis

D) Glyoxisome - deamination

Q: The most prominent cell organelle of a bacterial cell other than DNA is

A) Mesosome

B) Ribosome

C) Lysosomes

D) Mitochondrion

Q: The cell wall of prokaryotic cell (bacterial) is composed of

A) Lignin

B) Pectin

C) Cellulose

D) Murein

Q: The cell organelle in eukaryotic cell which is NOT bounded by a membrane is

A) Lysosomes

B) Centriole

C) Peroxisomes

D) Nucleolus

Q: In which part of the chloroplast the fixation of CO₂ results in the formation of sugars?

A) Envelope

B) Stroma

C) Thylakoid

D) Intergranum

Q: The organelle which is absent in animal cells is

A) Plastids

B) Centriole

C) Lysosomes

D) Nucleolus

Q: The special proteins which carry lipid-insoluble large molecules through pores of plasma membrane are called

A) Permeases

B) Catalases

C) Arginases

D) Amylases

Q: The membrane-enclosed spaces of endoplasmic reticulum are called

A) Lamellae

B) Cisternae

C) Stroma

D) Nucleolus

Q: All of the following refer to lysosomes EXCEPT

A) Slightly larger than mitochondria

B) Roughly spherical

C) Single membrane bounded

D) Contain powerful digestive enzymes

Q: Lysosomes are also called

A) Peroxisomes

B) Mesosomes

C) Phagosomes

D) Nucleolus

Q: In the leaves of green plants, peroxisomes are the sites of

A) Respiration

B) Photosynthesis

C) Photorespiration

D) Phototropism

Q: Which of the following is a disaccharide?

A) Glucose

B) Lactose

C) Fructose

D) Galactose

Q: Which of the following has the greatest number of glycosidic bonds?

A) Glucose

B) Sucrose

C) Cellulose

D) Maltose

Q: The main component of cellular membrane is

A) Nucleic acid

B) Cellulose

C) Carbohydrates

D) Protein

Q: The kinds of amino acids which are involved in the synthesis of most proteins are

A) 20

B) 30

C) 40

D) 50

Q: Amino acids mainly differ from each other by the difference in their

A) R-group

B) Carboxyl group

C) Amino group

D) Alpha group

Q: Keratin is a type of protein found in

A) Silk fibre

B) Nails

C) Blood cells

D) Muscle cells