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Which of the following statements about sporopollenin are true
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Which of the following statements about sporopollenin are true? I. Exine is made up of sporopollenin. II. Sporopollenin is one of the most. resistant organic materials. III. Sporopollenin can withstand high temperatures and strong acids. IV. So far no enzyme is known to degrade sporopollenin. Codes

A
I and II

B
III and IV

C
| and III

D
All of these

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Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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Which of the following statements about sporopollenin are true? I. Exine is made up of sporopollenin. II. Sporopollenin is one of the most. resistant organic materials. III. Sporopollenin can withstand high temperatures and strong acids. IV. So far no enzyme is known to degrade sporopollenin. Codes
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Practice questions from CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

Question 1
Easy
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Views: 5,522

Pollen grain of water-pollinated plants are coated by covering to prevent it from wetting
  1. mucilage
  2. cuticle
  3. exine
  4. intine
Topic

Topic:

Sexual Reproduction in Flowering Plants

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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Question 2
Medium
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Views: 5,271

Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
  1. Egg cell
  2. Central cell
  3. Micropyle
  4. Synergid
Topic

Topic:

Sexual Reproduction in Flowering Plants

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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Question 3
Easy
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Views: 6,057

Pollen tablets are available in the market for
  1. in vitro fertilisation
  2. breeding programmes
  3. supplementing food
  4. ex situ conservation
Topic

Topic:

Sexual Reproduction in Flowering Plants

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View 7 solutions

Question 4
Medium
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Match the entries in Column I with those of Column II and choose the correct option from the codes given below.
  1. A-3, B-1, C-4, D-2
  2. A-1, B-4, C-2, D-3
  3. A-2, B-3, C-1, D-4
  4. A-1, B-4, C-3, D-2
Topic

Topic:

Sexual Reproduction in Flowering Plants

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

View 7 solutions

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Question 1
Medium
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Views: 5,602

The diagram depicts:
  1. Water pollination in (tape-grass)
  2. Air pollination in (tape-grass)
  3. Anemophily in (tape-grass)
  4. Zoophily in (tape-grass)
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Sexual Reproduction in Flowering Plants

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Question 2
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Question 3
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In anatropous ovule, the micropyle is present:-
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Sexual Reproduction in Flowering Plants

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Question 4
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  3. 4-celled stage
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Topic:

Sexual Reproduction in Flowering Plants

Book

Book:

CBSE New Pattern Biology Class 12 for 2021-22 Exam MCQs based book for Term 1

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Question Text
Which of the following statements about sporopollenin are true? I. Exine is made up of sporopollenin. II. Sporopollenin is one of the most. resistant organic materials. III. Sporopollenin can withstand high temperatures and strong acids. IV. So far no enzyme is known to degrade sporopollenin. Codes
TopicSexual Reproduction in Flowering Plants
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes137