NEET MCQs

1. Pick the correct statement

(a) larval form of moth produces silk

(b) salivary glands of the moth produce silk

(c) by boiling, silk is extracted from cocoon of a moth

(d) both (a) and (c)

Answer: (d)

2. The silkworm larva ceases to eat and begins spinning silk all over its body

(a) from inside to outside

(b) from outside to inside

(c) in a random motion

(d) all of the above

Answer: (b)

3. This species produces silk of the superior quality

(a) Attacus atlas

(b) Bombyx mori

(c) Attacus ricini

(d) Antheraea assamensis

Answer: (b)

4. Silk is produced by

(a) cocoon

(b) adult moth

(c) larva

(d) larva and adult moth

Answer: (c)

5. This amongst the following produces silk

(a) butterflies

(b) Bombus mori

(c) Dysdercus koenigii

(d) Bombus indica

Answer: (b)

6. Insects not found in wild state is

(a) cochineal insect

(b) lac insect

(c) silk moth

(d) honey bee

Answer: (c)

7. Pick the set of beneficial insects to man

(a) sandfly, honey bee, butterfly

(b) honey bee, cockroach, silkworm

(c) silkworm, wasp, honey bee

(d) honey bee, cochineal insect, lac insect

Answer: (d)

8. Honey, silk and lac are

(a) artificial elements

(b) secretory substance of plants

(c) secretory substance of insects

(d) all of these

Answer: (c)

9. What is the life span of an adult ‘Bombyx mori’ ?

(a) 2 days

(b) 3-4 days

(c) 6 days

(d) 8 days

Answer: (b)

10. Silk contains a protein known as

(a) casein

(b) fibroin

(c) sericin

(d) both (b) and (c)

Answer: (d)