Structural Organisation in Animals

NEET Biology · 93 questions · Page 10 of 10 · Click an option or "Show Solution" to reveal answer

Q91

Proteoglycan in cartilages which is part of polysaccharide is

A Ossein

B Cartilegen

C Chondroitin

D Casein

Correct Answer

Option C

Solution

Proteoglycans consist of polysaccharide chondroitin attached with a protein.

It is present in cartilage and extracellular material.

Q92

Characteristic of simple epithelium is that they

A Continue to divide and help in organ function

B They are arranged indiscriminately

C They make a definite layer

D None

Correct Answer

Option C

Solution

Simple epithelium consists of a single layer of cells resting on a basement membrane, making a definite layer.

Q93

Primary function of enteronephric nephridia of Pheretima

A Excretion of nitrogenous waste

B Locomotion

C Osmoregulation

D Respiration

Correct Answer

Option C

Solution

Pharyngeal and septal nephridia are enteronephric (discharge into gut).

They help in osmoregulation by reabsorbing water in the gut.

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