Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions

Mark the following statement as True or False. If false, write the correct statement.

The large intestine is longer and wider than the small intestine of the human alimentary canal.

Large intestine absorbs ___________ and some __________ from the undigested food.

The muscular tube through which stored urine is passed out of the body is called –

Arrange the following statements in the correct order in which they occur during the formation and removal of urine in human beings.

1. Ureters carry urine to the urinary bladder.
2. Wastes dissolved in water are filtered out as urine in the kidneys.
3. Urine stored in the urinary bladder is passed out through the urinary opening at the end of the urethra.
4. Blood containing useful and harmful substances reaches the kidneys for filtration.
5. Useful substances are absorbed back into the blood.

Name the process and the organ which helps in removing the following wastes from the body.

1. Carbon dioxide
2. Undigested food
3. Urine
4. Sweat

Read the following terms given below.

Group the terms on the basis of the categories given below.

1. Circulatory system of animals.
2. Excretory system in human.
3. Transport of substances in plants.

Coconut is a large and heavy fruit. How is it adapted for dispersal by water?

The distance between an object and a convex lens is changing. It is noticed that the size of the image formed on a screen is decreasing. Is the object moving in a direction towards the lens or away from it?

Water absorption through roots can be increased by keeping the plants ______.

Why is transport of materials necessary in a plant or in an animal? Explain.

Does transpiration serve any useful function in the plants? Explain.

The false feet of Amoeba are used for ______.

The alimentary canal stretches from ______ to ______.

In a tall tree, which force is responsible for pulling water and minerals from the soil?

The largest gland in the human body is ______.

The stomach releases hydrochloric acid and ______ juices which act on food.

The inner wall of the small intestine has many finger-like outgrowths called ______.

The gall bladder temporarily stores bile.

The tongue helps in mixing food with saliva. 

Digestion of starch starts in the stomach.