KVPY Stream-SA (Class 11) Biology: Questions 214 - 222 of 304

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Question number: 214

» Plant Physiology » Plant Growth and Development » Seed Germination

MCQ▾

Question

Mechanical cracking of hard seed coat can induce germination of certain seeds this phenomenon is termed as

Choices

Choice (4) Response
a.

Stratification

b.

Scarification

c.

Cracking

d.

Chilling

Question number: 215

» Plant Physiology » Plant Growth and Development » Seed Germination

MCQ▾

Question

Cotyledons absent in seed of

Choices

Choice (4) Response
a.

Santalum

b.

Cuscuta

c.

Capsella

d. Both a. and b. are correct

Question number: 216

» Reproduction » Sexual Reproduction in Flowering Plants » Outbreeding Devices

MCQ▾

Question

Bisporic type of embryo sac is found in: -

Choices

Choice (4) Response
a.

Oenothera

b.

Adoxa

c.

Polygonum

d.

Allium

Question number: 217

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

MCQ▾

Question

The fusion product of polar nuclei and male gamete is

Choices

Choice (4) Response
a.

Primary endosperm nucleus

b.

Secondary nucleus

c.

Nucellus

d.

Zygote

Question number: 218

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo

MCQ▾

Question

The function of suspensor is

Choices

Choice (4) Response
a.

To suck food

b.

To thrust the embryo towards endosperm to provide more food

c.

To provide water

d.

To provide oxygen

Question number: 219

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

MCQ▾

Question

Pollination in Yucca plant takes place by: -

Choices

Choice (4) Response
a.

Bird

b.

Honey bee

c.

Butter fly

d.

Pronuba

Question number: 220

» Reproduction » Sexual Reproduction in Flowering Plants » Outbreeding Devices

MCQ▾

Question

The anterior end of pollen tube burst by the process of________in embryosac-

Choices

Choice (4) Response
a.

Imbibition

b.

Endosmosis

c.

Enzymatic action

d.

Exosmosis

Question number: 221

» Reproduction » Sexual Reproduction in Flowering Plants » Pollen-Pistil Interaction

MCQ▾

Question

The chalazogamy was reported by “Treub” in

Choices

Choice (4) Response
a.

Datura

b.

Capsicum

c.

Capsella

d.

Casuarina

Question number: 222

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

MCQ▾

Question

What are x-bodies in ovules?

Choices

Choice (4) Response
a.

Disintegrating tube nucleus & synergids nucleus

b.

Two male nuclei

c.

Filiform apparatus

d.

Two polar nuclei

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