Question 4
Which of these options is not a function of Ribosome?

(i) It helps in manufacture of protein molecules

(ii) It helps in manufacture of enzymes

(iii) It helps in manufacture of hormones
(iv) It helps in manufacture of starch molecules

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (iv) and (i)

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Solution

The correct option is (C)
Explanation of correct option:
Ribosomes are cell organelles that are involved in the synthesis of protein.
Protein is needed for many cell functions such as repairing damage or directing chemical processes.
Enzymes are proteins that act as biological catalysts.
Ribosomes are not involved in the synthesis of any hormones.
It is also not responsible for the synthesis of starch molecules.
Final answer:
The manufacture of hormones and the manufacture of starch molecules are not functions of ribosomes.

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Similar questions

Q. Which of the following options are not a function of ribosomes?
(i) It helps in manufacture of protein molecules.
(ii) It helps in manufacture of enzymes.
(iii) It helps in manufacture of hormones.
(iv) It helps in manufacture of starch molecules.

Question 1

Which of the following parts of our body help us in movement?
(i) Bones
(ii) Skin
(iii) Muscles
(iv) Organs

Choose the correct answer from the options below.
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (iv)
(d) (iii) and (ii)

Q. Which of the following statements are incorrect?

(i) Vitamin A helps to prevent night blindness.
(ii) Vitamin C prevents rickets.
(iii) Vitamin K helps in clotting of blood.
(iv) Iron helps to prevent goitre.
(v) Potassium helps to regulate fluid balance in our body.

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

(a) (i), (ii), (iii) and (iv) (b) (i) ,(ii) and (iii)

Question 8
Find out the correct sentence about manure

(i) Manure contains large quantities of organic matter and small quantities of nutrients.

(ii) It increases the water holding capacity of sandy soil.

(iii) It helps in draining out of excess of water from clayey soil.

(iv) Its excessive use pollutes environment because it is made of animal excretory waste.

(a) (i) and (iii)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (iii) and (iv)

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Endoplasmic Reticulum

Standard IX Biology

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