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1
Consider the following
 
Enzymes and protein can be correlated with each other in the following ways

1. All proteins are enzyme.

2. All enzymes are protein.

3. All enzymes are not protein.

4. All proteins are not enzyme.

Which of the above are correct?
» Explain it
B
An enzyme is defined as a catalytic protein, meaning a protein which catalyzes a chemical reaction. However, not all proteins catalyze chemical reactions. Some have structural or mechanical roles. Therefore, all enzymes are protein in nature but all proteins are not enzymes.
2
Consider the following statements regarding respect of thyroid gland.

1. It is situated in the neck.

2. It is vital to maintain of normal body temperature. 

Which of the statements given above is/are correct?
» Explain it
C
Thyroid gland is one of the largest endocrine glands which is found in the neck. It is known to control body’s metabolism, temperature appetite, muscle strength, etc.
 
biology
3
Which one of the following is not a constituent of biogas?
» Explain it
D
Nitrogen dioxide is not a component of biogas. The main components of bio gas are methane, carbon di oxide and hydrogen.
4
A mother of blood group O has a group O child. What could be the blood group of father of the child?
» Explain it
B
Father of the child could be A or B or O.

biology
» Explain it
A
Sphygmomanometer measures the blood pressure. It is composed of an inflatable cuff to restrict the blood flow and a mercury or manometer to measure pressure.
 
Biology