Question

Answers to these questions should in the range of 50 to 80 words.
(v) Section-o-question no. - 34 to 36 are long answer type questions
Answer to these questions should be in the range of 80 to 120 word
(vi) There is no overall choice. However, Internal choices have been pro
Questions. A student has to attempt only one of the alternatives in
(vii) Wherever necessary, neat and properly labeled diagrams should be
SECTION-A
1. Where are proteins synthesize inside the cell?
2. The symbol of calcium, carbon and Argon are:
a) Ca, C, Ag
b) Ca, Co, Au c) Ca, c, Ar d) C, Cu, Ca
3. Which of the following represent 12u?
a) Mass of 1 hydrogen atom b) Mass of 1 oxygen atom
c) Mass of 1 Helium atom d) Mass of 1 Carbon atom
4. Define Osmosis.
5. In vacuum all freely falling objects:
a) have same speed
b) have the same velocity
c) have the same acceleration d) have the same force
6. What is immunization?
OR
Why a person suffering from AIDS does become sick frequently
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Answer 1

Answer:

section A

1. Ribosomes

2.(c) Ca, c, Ar

3.(d) Mass of 1 Carbon atom

4.the gradual passing of a liquid through a thin layer of material a membrane

5.(c) have the same acceleration

6.Immunization: A process by which a person becomes protected against a disease through vaccination.

OR

HIV virus causing AIDS destroys the immune system of the host's body. A person suffering from AIDS fails to resist bacterial and viral infections, hence he becomes sick frequently.