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Biology

Sexual Reproduction in Flowering Plants

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Assertion : The two cotyledons in seed are embryonic leaves. R

Question

Easy

Solving time: 2 mins

Assertion : The two cotyledons in seed are embryonic leaves.
Reason : The embryo contains radicle and plumule.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

If Assertion is true but Reason is false.

If both Assertion and Reason are false.

Views: 5,171 students

Book:

NEET Question Bank i Biology for AIIMS (Disha)

Found 7 tutors discussing this question

Samuel Discussed

Assertion : The two cotyledons in seed are embryonic leaves.
Reason : The embryo contains radicle and plumule.

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Discuss this question LIVE

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Text solutionVerified

In angiosperms, cotyledons are embryonic leaves. Embryo also has radicle and plumule which gives rise to root and shoot respectively.

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Practice questions from NEET Question Bank i Biology for AIIMS (Disha)

Question 1

Easy

Assertion: A typical microsporangium of angiosperms is generally surrounded by four wall layers.
Reason: The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

Topic:

Sexual Reproduction in Flowering Plants

Book:

NEET Question Bank i Biology for AIIMS (Disha)

View 2 solutions

Question 2

Easy

Assertion: Apomixis is a form of asexual reproduction that mimics sexual reproduction in plants.
Reason: Apomixis involves the production of seeds without the fusion of gametes.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

Topic:

Sexual Reproduction in Flowering Plants

Book:

NEET Question Bank i Biology for AIIMS (Disha)

View solution

Question 3

Easy

Assertion: Pollen grains from male parent are mostly transferred to the stigma in the female parent by some external agency.
Reason: This is because the male flowers or male organs have no internal device to reach the female organs in another flower.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

Topic:

Sexual Reproduction in Flowering Plants

Book:

NEET Question Bank i Biology for AIIMS (Disha)

View solution

Question 4

Easy

Assertion: Anemophilous plants have to produce enormous quantities of pollen.
Reason: Because during the transit of pollen through a wind, a considerable amount of pollen is lost.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

Topic:

Sexual Reproduction in Flowering Plants

Book:

NEET Question Bank i Biology for AIIMS (Disha)

View solution

Practice more questions from Sexual Reproduction in Flowering Plants

Question 1

Easy

I. No endosperm
II. Endosperm present
III. Cotyledons-thin
IV. Cotyledons – thick
V. Food is stored in cotyledons
VI. Food is stored in endosperms
Sort out correct points (from I to VI) for (A) -Albuminous and (B) - Exalbuminous seeds.

A I, IV , V B II, III ,VI
A II, III ,VI B I, IV , V
A II, IV ,VI B I, IIII , V
A I, III ,V B II, IV , VI

Topic:

Sexual Reproduction in Flowering Plants

Book:

Dr. Ali Objective Biology

View solution

Question 2

Hard

Xenia refers to

Effect of pollen on endosperm
Effect of embryo on sperm
Both (a) and (b)
None of the above

Topic:

Sexual Reproduction in Flowering Plants

View solution

Question 3

Easy

A close relation between flower and pollinating agent is best exhibited by

Cocos
Salvia
Yucca
Avena

Topic:

Sexual Reproduction in Flowering Plants

Book:

Biology-for-NEET-Volume-2-Class-XII

View 2 solutions

Question 4

Easy

Assertion : Autogamy is a transfer of pollen grains from an anther to the stigma of the same flower on the same plant.
Reason : Xenogamy is pollination between two flowers on different plants.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
If Assertion is true but Reason is false.
If both Assertion and Reason are false.

Topic:

Sexual Reproduction in Flowering Plants

Book:

NEET Question Bank i Biology for AIIMS (Disha)

View solution

Practice questions on similar concepts asked by Filo students

Question 1

Hie close to each other so that self-pollination can occur. Some plants such as Viola (common pansy). Oxalis. and Commetina produce two types of fowers are similar to chasmogamous flowers which are similar to and stigma, and cleistogamous flowers which do not open at all (Figure 2.9c). In such flowers. the anthers and stigma lie close to each other. When anthers dehisce in the flower buds. pollen grains come in contact with the stigma to effect pollination. Thus, cleistogamous flowers are invariably autogamous as there is no chance of cross-pollen landing on the assured cleistogamous flowers produce pollinators. Do you think that cleistogamy is advantageous or disadvantageous to the plant? Why? (ii) Geitonogamy-Transfer of pollen grains from the anther to the stigma of another flower of the same plant. Although geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from flower

the same plant. (iii) Xenogamy - Transfer of pollen grains from anther to the stigma of a different plant (Figure during pollination brings genetically different types of pollen grains to the stigma. and water) and one biotic (animals) agents to achieve flowers pollination. Majority of plants use biotic agents for pollination. Only a small proportion of plants use abiotic agents. Pollen grains coming in contact with the stigma is a chance factor in both wind and water pollination. To compensate for this uncertainties and associated loss of pollen grains, the flowers produce llinated flowers;

associated loss of pollen grains, the flowers produce ollinated flowers;

enormous amount of pollen when compared to the jamous flowers number of ovules available for pollination.

Topic:

Plant Physiology

View 2 solutions

Question 2

Compare two features of the pulmonary circulation and the systemic circulation

Topic:

Biology

View solution

Question 3

3. What are Restriction enzymes? Why do bacteria have these restriction enzymes? Show diagrammatically a restriction enzyme its recognition and the product it produces?

Topic:

Biotechnology

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Question 4

'graded discussion: 10 points possible duc Fcb 8 Discussion 1 History and Evolution of Psychology Our understanding of mental illness has taken Us through _ journey that included such explanations as spirit possession and witchcraft, position of the moon and planets volume of body fluids_ and brain disease: We now see mental-health disorders as combination of cognitive behavioral, emotional and social factors that can affect wide array of people across wide range of experiences_ How do you see the relevance of psychology to life and managing everyday hassles? Will this help us become more empowered or victimized? (your response should be between 150 and 300 words) Search entries or author Unread Edit View Insert Format Tools Table 12pt Paragraph 2~ T?~ | Bv 0~ | 9 | =y Fy = | W 8~ $ This'

Topic:

Biology

View solution

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Question Text	Assertion : The two cotyledons in seed are embryonic leaves. Reason : The embryo contains radicle and plumule.
Topic	Sexual Reproduction in Flowering Plants
Subject	Biology
Class	Class 12
Answer Type	Text solution:1
Upvotes	85

Assertion : The two cotyledons in seed are embryonic leaves. Reason : The embryo contains radicle and plumule.

Text solutionVerified

Practice questions from NEET Question Bank i Biology for AIIMS (Disha)

Practice more questions from Sexual Reproduction in Flowering Plants

Practice questions on similar concepts asked by Filo students

Related books for questions on Sexual Reproduction in Flowering Plants

Assertion : The two cotyledons in seed are embryonic leaves.
Reason : The embryo contains radicle and plumule.