NEET Biology: Questions 136 - 140 of 3146

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Question number: 136

» Plant Physiology » Photosynthesis » Chemiosmotic Hypothesis

MCQ▾

Question

When an unripe banana is sealed in a polythene bag, it remains green for many days. But if an apple is also sealed in the same bag, the banana ripens and turns yellow within a few days. The reason is that apple

Choices

Choice (4) Response
a.

Releases ethylene which promotes ripening.

b.

Removes CO2 which inhibits ripening.

c.

Produces CO2 which promotes ripening.

d.

Removes O2 released by the banana and thus promotes ripening.

Question number: 137

» Human Physiology » Digestion and Absorption » Alimentary Canal and Digestive Glands

MCQ▾

Question

Dental formula of human being is

Choices

Choice (4) Response
a.

I3, C1, P2, M2

b.

I2, C1, P2, M3

c.

I2, C2, P1, M3

d.

I2, C2, P3, M1

Question number: 138

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Stem

MCQ▾

Question

Other names of secondary cortex, cork cambium and cork are

Choices

Choice (4) Response
a.

Phelloderm, phellogen and phellem

b.

Phellogen, phelloderm and phellem

c.

Phellogen, phellem and phelloderm

d.

Phellem, phelloderm and phellogen

Question number: 139

» Diversity in Living World » Five Kingdom Classification » Plant Group - Bryophytes

MCQ▾

Question

An archegonium of Riccia has

Choices

Choice (4) Response
a.

4 neck canal cells, 2 venter canal and one oosphere.

b.

6 neck canal cells, 2 venter canal and one oosphere.

c.

4 neck canal cells, 1 venter canal and one oosphere.

d.

4 neck canal cells, one venter canal and two oosphere.

Question number: 140

» Ecology and Environment » Ecosystem » Productivity and Decomposition

MCQ▾

Question

The total rate of photosynthesis including the organic matter used up in respiration during definite period is known as

Choices

Choice (4) Response
a.

Secondary productivity.

b.

Gross primary productivity.

c.

Net primary productivity.

d. Question does not provide sufficient data or is vague

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