Photosynthesis — Biology STD 10 — Question

Where are the headquarters of WHO located?

Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
Name the parts labeled A, B and C in the diagram.

With reference to the functioning of the eye, answer the question that follow:

Name the cells of the retina and its respective pigments which get activated in the dark.

Define the following:
Axon

Chlorophyll is necessary for photosynthesis.

Name the following:
Structural and metabolic unit of nervous tissue.

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
What aspect of photosynthesis was being tested?

Differentiate between:
Amnion and allantois

Name the Following :
Hormone which controls the development of male secondary sexual characters.

With reference to the functioning of the eye, answer the question that follow:
Name the cells of the retina and its respective pigments which get activated in the dark.