Nutrition in Animals | Chapter Assessment | English | Grade 7

Which is the widest part of the alimentary canal?

• Kidney

• Small intestine

• Liver

• Stomach

Answer explanation

Stomach is the widest part of the alimentary canal.

The _____ protects the lining of the stomach.

• Hydrochloric acid

• Mucous

• Salivary gland

• Pancreas

Answer explanation

The mucous protects the lining of the stomach.

When we eat food quickly or talk while eating the food enters our_____ which is the reason we get hiccups and cough.

• Stomach

• Pancreas

• Food Pipe

• Liver

Answer explanation

When we eat food quickly or talk while eating the food enters our food pipe which is the reason we get hiccups and cough.

Choose the incorrect statements among the following. (i) Amoeba eats microscopic plants and animals which are found in water. (ii) Absorption doesn't takes place in amoeba. (iii) We can see the amoeba with the help of telescope. (iv) In amoeba the undigested food is expelled through egestion.

• (i),(ii),(iii) and (iv)

• (i)(iv)

• (i), (ii) and (iv)

• (ii),(iii) and (iv)

Answer explanation

Incorrect statements are - (ii) Absorption doesn't takes place in amoeba. (iii) We can see the amoeba with the help of telescope. (iv) In amoeba the undigested food is expelled through egestion. Absorption takes place in amoeba. We can see the amoeba with the help of microscope. In amoeba the undigested food is expelled through vacuole.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Amoeba pushes out finger like projections is known as ______ .

• Alimentary canal

• Cell

• Villi

• Pseudopodia

Answer explanation

Amoeba pushes out finger like projections is known as Pseudopodia.

In the given digestive system of cow, this is ____

• Colon

• Rumen

• Alimentary canal

• Jejunum

Answer explanation

In the given digestive system of cow, this is jejunum.

What is the role of digestive juices?

• Kills bacteria which enter with the food

• It breakdown protein and fats into simpler substances

• Protects the lining of the stomach

• Helps in chewing the food into smaller pieces

Answer explanation

Digestive juices break down protein and fats into simpler substances.