Photosynthesis in Higher Plants — BIOLOGY STD 11 Science — Question

Give comparison between cyclic and non-cyclic photophosphorylation.

State the route of foul air from the lungs to outside. Also state whether TV increases or decreases during excitement and activity.

Differentiate glycosuria from ketonuria.

The dry weight of the seed is greater than that of the endosperm grown in darkness, whereas the dry weight of the endosperm with leaves grown in light is greater than that of the seed. Explain the reason.

Photoreceptors of earthworm occur on:

1. Clitellum.
2. Many eyes.
3. Dorsal surface.
4. Lateral sides.

What are phycocolloids? Name two of them and their respective sources.

What is the source of vasopressin hormone? Where is it stored? Name the target organ of this hormone? State its function.

A person suffering from fever is advised to take blood test. What may happen to his WBC count and why?

List the hormones secreted by the following :
Adrenal

The skull bones are the strongest bones in the body and thus the brain gets the best protection in the body. In the light of this statement, which of these is true? How will you raise awareness about wearing helmet?

1. We do not need a helmet because skull is enough to take care of the brain.
2. We can manage with a poor quality helmet so that the police does not catch us.
3. Helmets are very important because they help in saving the most important organ; the brain.