Plant Physiology [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology]: Questions 72 - 77 of 338

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Question 72

Question MCQ▾

Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?

Choices

Choice (4)Response

a.

Red and violet

b.

Green and red

c.

Blue and green

d.

Violet and blue

Edit

Question 73

Question MCQ▾

Which one is not an essential element in plants?

Choices

Choice (4)Response

a.

Iron

b.

Boron

c.

Cadmium

d.

Sulphur

Edit

Question 74

Question MCQ▾

Of the processes which occur in leaves, the one which may lower their temperature (cooling effect) is

Choices

Choice (4)Response

a.

Respiration

b.

Hydrolysis

c.

Transpiration

d.

Photosynthesis

Edit

Question 75

Question MCQ▾

In guard cells, presence of potassium is essential for

Choices

Choice (4)Response

a.

In controlling cell division

b.

In enzymatic reactions

c.

Maintaining osmotic pressure

d.

None of the above

Edit

Question 76

Question MCQ▾

The correct sequence of cellular growth stages is

Choices

Choice (4)Response

a.

Division ⇾ differentiation ⇾ elongation.

b.

Differentiation ⇾ division ⇾ elongation.

c.

Elongation ⇾ differentiation ⇾ division.

d.

Division ⇾ elongation ⇾ differentiation.

Edit

Question 77

Question MCQ▾

Which one of the following can fix atmospheric nitrogen directly?

Choices

Choice (4)Response

a.

Brassica

b.

Pea

c.

Petunia

d.

Castor

Edit