Structural Organisation in Animals

AIPMT 2000MCQEasy📈 Topic in 50% papers+4−1

Ques. 1AIPMT 2000

Proteoglycan in cartilages which is part of polysaccharide is

Ossein
Cartilegen
Chondroitin
Casein

Answer

(3) Chondroitin

Solution

The matrix of cartilage is made of a proteoglycan whose polysaccharide part is chondroitin sulphate; as per NCERT, the intercellular material of cartilage is solid and pliable and resists compression.

⇒ Ossein is the protein of bone matrix, and casein is the milk protein.

∴ The polysaccharide part of the cartilage proteoglycan is chondroitin.

Answer: (3)

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Ques. 2AIPMT 2000

Characteristic of simple epithelium is that they

Continue to divide and help in organ function
They are arranged indiscriminately
They make a definite layer
None

Ques. 3AIPMT 2000

Primary function of enteronephric nephridia of Pheretima:

Excretion of nitrogenous waste
Locomotion
Osmoregulation
Respiration

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