Given below is a vertical section of the human brain. Match the structures marked (a) to (e) with their correct functions.

Example: (f) – 6. Transfer information from one cerebral hemisphere to another.

Read the explanations given below and name the structures:

Example: A cord that connects the placenta with the foetus.

Answer: Umbilical cord

(a) The fibres which hold the lens of the eye in position.

(b) The cells of the islets of Langerhans that secrete the hormone glucagon.

(c) The part of the chloroplast where the light independent phase occurs.

(d) Cap like structure seen around the head of the human sperm.

(e) The glands located at the upper sideward portion of the orbit of eye.

What are the two hormones secreted by Corpus luteum?

What are phytohormones? Give an example of the growth retarding hormone.