Plant Physiology (NEET Biology): Questions 247 - 252 of 257

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Question number: 247

» Plant Physiology » Plant Growth and Development » Seed Dormancy

Appeared in Year: 2000

MCQ▾

Question

By which action a seed coat becomes permeable to water - [AIPMT]

Choices

Choice (4) Response

a.

Vernalization

b.

Scarification

c.

Stratification

d.

None of the above

Question number: 248

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

Appeared in Year: 2002

MCQ▾

Question

Seed dormancy is due to the presence of: [AIPMT]

Choices

Choice (4) Response

a.

Starch

b.

Abscisic acid

c.

Ethylene

d.

I. A. A.

Question number: 249

» Plant Physiology » Plant Growth and Development » Seed Dormancy

Appeared in Year: 2006

MCQ▾

Question

Treatment of seed at low temperature under moist conditions to break its dormancy is called [AIPMT]

Choices

Choice (4) Response

a.

Vernalization

b.

Stratification

c.

Scarification

d.

Chelation

Question number: 250

» Plant Physiology » Transport in Plants » Transpiration-Opening and Closing of Stomata

MCQ▾

Question

In submerged hydrophyte the functional stomata are found:

Choices

Choice (4) Response

a.

On lower surface of leaf

b.

On upper surface of leaf

c.

None of the above

d.

All of the above

Question number: 251

» Plant Physiology » Photosynthesis » Means of Autotrophic Nutrition

Appeared in Year: 1999

MCQ▾

Question

Maximum photosynthesis takes place by: - (CBSE PMT)

Choices

Choice (4) Response

a.

Marsh plants

b.

Woody plants

c.

Zooplankton

d.

Phytoplankton

Question number: 252

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

Appeared in Year: 2016

MCQ▾

Question

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?

Choices

Choice (4) Response

a.

Auxin and cytokinin

b.

Auxin and abscisic acid

c.

Gibberellin and abscisic acid

d.

IAA and gibberellin

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