Assertion Reason Test: Cell: The Unit of Life - NEET MCQ

A: Janus green B is a vital stain for locating mitochondria.

R: Janus green is oxidised by cytochrome oxidase present in mitochondria.

A: Lysosomes help in digestion of foreign particles in the animal cells.

R: They have respiratory enzymes.

A: Chromoplast is coloured plastid in corolla and ripened fruits.

R: It has water soluble chlorophyll and carotenoid pigments.

A: The axoneme of eukaryotic flagellum possesses a number of microtubules running parallel to the long axis.

R: It has a pair of peripheral doublet and a pair of centrally located microtubules.

A: A Telocentric chromosome has two unequal arms.

R: The centromere is situated close to its end, forming one extremely short arm.

A: Chloroplast is a semi-autonomous organelle.

R: The ribosomes of the chloroplast are smaller than cytoplasmic ribosomes.

A: Lipids are arranged within the cell membrane with the hydrophobic tails towards the inner part.

R: This ensures that the non-polar tail of saturated hydrocarbons is protected from the aqueous environment.