Name the following
The pores through which leaves exchange gases.

Which of the following penetrates through skin and enters the intestine

Submerged hydrophytes exchange gases through

What is the principle of exchange of gases ?

Name two waste products that are stored in old xylem in plants. Name the process by which plants get rid of excess water. Name the pores through which this process takes place.

The protoplasmic strands connecting the two adjacent plants cells through which exchange of material occur are celled.

Name the part of neuron through which the informtion travels as an electric impulse.

Which of the following postulates of kinetic molecular theory of gases is not correct ?

Draw a diagram of human respiratory system and label the following : (i) part where air is filtered by fine hair and mucus. (ii) part which terminates in balloon - like structures. (iii) balloon - like structures where exchange of gases takes place. (iv) part which separates chest cavity from abdominal cavity.

Which of the following compound does not undergo base - catalyzed exchange in D_2O even though it has an alpha -hydrogen?

Which of the following is NOT the name of the lattices ?