(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Biology

Why do we not use the terms maize fruit and maize seed? What do we say instead?

Give two difference in the following pairs:

Bean seed and maize grain

Justify the statement that the maize grain is a 'one-seeded fruit'. 

Pylorus is an opening from

Gastric juice contains

The water from the digested food is mainly absorbed by

Which one of the following pairs of types of teeth perform one common function as stated against it?

What is the dental formula of a normal human adult?

Consider the following two statements A and B and select the right option from (i)-(iv) about their correctness.

1. Small intestine is shorter than large intestine.
2. Small intestine is wider than large intestine.

Options :

(i)Both the statements are correct

(ii) Both the statements are wrong

(iii) Statement A is correct, B is wrong

(iv) Statement B is correct, A is wrong 

What is digestion? Why do only animals require a digestive system?

What are the end products of the digestion of: starch, proteins and fats respectively?

Why is there no enzyme to digest vitamins?

How is thorough chewing of food helpful in digestion?

What is the function of rectum?

What is roughage? Give two examples.

Mention two ways in which the ileum of the mammal is adapted for the absorption of digested food.

The stomach secretes gastric juice, which contains hydrochloric acid. What is its function?

Prepare a possible vegetarian menu for your dinner which would provide all the necessary nutrients.

Why is the small intestine the most important organ of the digestive system?

What are the main characteristics of enzyme?