12th Biology NCERT Book in Hindi

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12th Biology NCERT Book in Hindi. We covered all the 12th Biology NCERT Book in Hindi MCQs in this post for free so that you can practice well for the exam.

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12th Biology NCERT Objective Book in Hindi for Students
Any one parameter is not good enough to demonstrate growth through the life of a flowering plant because:
The phenomenon of growth is immediately followed by:
Apples are generally wrapped in waxed paper to:
Which one of the following is a plant hormone?
Which one of the following is not a plant hormone?
Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol, etc., which very closely resemble cholesterol. These plant sterols are referred to as:

12th Biology NCERT Objective Book in Hindi for Students

Any one parameter is not good enough to demonstrate growth through the life of a flowering plant because:

(a) Lateral meristems appear later in life.

(b) Apical meristems contribute to elongation while lateral meristems increase girth.

(c) An increase in protoplasm is difficult to measure directly.

(d) None of the above

Option c - An increase in protoplasm is difficult to measure directly

The phenomenon of growth is immediately followed by:

(a) Senescence

(b) Dedifferentiation

(c) Redifferentiation

(d) Maturation

Option d - Maturation

Apples are generally wrapped in waxed paper to:

(a) Prevent sunlight from changing its color.

(b) Prevent aerobic respiration by checking the entry of O₂.

(c) Prevent ethylene formation due to injury.

(d) Make the apples look attractive.

Option b - Prevent aerobic respiration by checking the entry of O₂

Which one of the following is a plant hormone?

(a) Insulin

(b) Thyroxine

(c) Estrogen

(d) Cytokinin

Option d - Cytokinin

Which one of the following is not a plant hormone?

(a) Cytokinin

(b) Ethylene

(c) Insulin

(d) Gibberellin

Option c - Insulin

Plants contain a variety of sterols like stigmasterol, ergosterol, sitosterol, etc., which very closely resemble cholesterol. These plant sterols are referred to as:

(a) Phytosterols

(b) Calciterols

(c) Ergocalciferols

(d) Lumisterols

Option a - Phytosterols

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