English Medium कक्षा १० - CBSE Question Bank Solutions for Science

Which part of roots is involved in the exchange of respiratory gases?

Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.

Name the pores in a leaf through which respiratory exchange of gases takes place.

Name the areas in a woody stem through which respiratory exchange of gases takes place.

What is the name of the extensions of the epidermal cells of a root which help in respiration?

Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?

Name an animal which depends on simple diffusion of gases for breathing.

Name two animals which breathe through gills.

The trachea divides into tow tubes at its lower end. What is the name of these tubes?

Where does the blood absorb oxygen in the human body?

Name the red pigment which carries oxygen in blood.

Where in the lungs does gas exchange take place?

What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?

What is the other name of wind-pipe?

What organs are attached to the two bronchi?

In the lungs what substance is taken into the body?

During respiration, the plants take CO₂ and release O₂.

State whether the following statement is true or false:

Energy can be produced in cells without oxygen.

State whether the following statement is true or false:

Fish and earthworm exchange gases during respiration in the same way.

Fill in the following blank with suitable word:

 The organs of respiration in man are the _____________.