Nutrition in animals

The breakdown of complex component of food into simpler substance is called digestion.

• True

• False

Choose the correct order

• digestion , absorption , assimilation , egestion , ingestion .

• assimilation , egestion , ingestion , digestion , absorption

• ingestion , digestion , absorption , assimilation , egestion ,

• assimilation , egestion , digestion , absorption ,ingestion

Butterflies suck nectar from flowers with the help of a

• mouth parts

• bolus

• feeding tube

• proboscis

__________ is a multicellular aquatic animal which ingests its food with the help of _________

• hydra

• paramecium

• food vacuole

• tentacles

The Finger-Like Outgrowth Of “Amoeba” Helps To Ingest Food. However, The Finger-Like Outgrowths Of Human Intestine Helps To

• Digest the fatty food substances.

• Make the food soluble.

• Absorb the digested food.

• Absorb the undigested food

what helps tentacles catching and paralysing small aquatic animals -

• bolus

• mouth

• sting cells

• sticky web

Small hair like structure called

• villi

• oral groove

• tentacles

• cilia

Read the following statements with reference to the villi of small intestine.

(i) They have very thin walls.

(ii) They have a network of thin and small blood vessels close to the surface.

(iii) They have small pores through which food can easily pass.

(iv) They are finger-like projections.

Identify those statements which enable the villi to absorb digested food.

• (i), (ii) and (iv)

• (ii), (iii) and (iv)

• (iii) and (iv)

• (i) and (iv)

INGESTION IS THE FIRST PROCESSES OF (a)  

Gastric digestion takes place efficiently in

• acidic medium

• alkaline medium

• neutral medium

• highly alkaline medium