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Name three groups of plants that bear archegonia. Briefly desc
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

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2

Chapter 2: Biological Classification

12 questions

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3

Chapter 3: Plant Kingdom

12 questions

Q1
When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?
Q2
Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
Q3
Mention the ploidy of the following:
1. Protonemal cell of a moss
2. Primary endosperm nucleus in dicot 
3. Leaf cell of a moss
4. Prothallus cell of a fern
5. Gemma cell in Marchantia
6. Meristem cell of a monocot 
7. Ovum of a liverwort 
8. Zygote of a fern
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4

Chapter 4: Animal Kingdom

15 questions

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5

Chapter 5: Morphology of Flowering Plants

15 questions

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6

Chapter 6: Anatomy of Flowering Plants

12 questions

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7

Chapter 7: Structural Organization in Animals

14 questions

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8

Chapter 8: Cell: The Unit of Life

14 questions

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9

Chapter 9: Biomolecules

15 questions

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10

Chapter 10: Cell Cycle and Cell Division

16 questions

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11

Chapter 11: Transport in Plants

16 questions

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12

Chapter 12: Mineral Nutrition

10 questions

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13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

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14

Chapter 14: Respiration in Plants

12 questions

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15

Chapter 15: Plant Growth and Development

11 questions

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16

Chapter 16: Digestion and Absorption

15 questions

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17

Chapter 17: Breathing and Exchange of Gases

14 questions

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18

Chapter 18: Body Fluids and Circulation

14 questions

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19

Chapter 19: Excretory Products and their Elimination

12 questions

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20

Chapter 20: Locomotion and Movement

10 questions

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21

Chapter 21: Neural Control and Coordination

12 questions

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22

Chapter 22: Chemical Coordination and Integration

9 questions

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Question
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Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.

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Updated on: Sep 6, 2023

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Biology (NCERT)

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Archegonium is the female sex organ that produces the female gamete or egg. It is present in the life cycles of bryophytes, pteridophytes, and gymnosperms. 
Life cycle of a fern (Dryopteris) :
Dryopteris is a common fern with pinnately-compound leaves. The main plant-body is sporophytic. Many sporangia are borne on the lower surfaces of its mature leaves. Each sporangium has spore mother cells which undergo meiosis to produce haploid spores. On maturing, these spores dehisce and germinate to give rise to a heart-shaped gametophyte called as prothallus. 
The prothallus bears the male and female sex organs called antheridia and archegonia respectively. The antheridia produce sperms that swim in water to reach the archegonia. The egg is produced by the archegonia. As a result of fertilisation, a zygote is formed. The zygote forms an embryo, which in turn develops into a new sporophyte. The young plant comes out of the archegonium of the parent gametophyte.
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When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?
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Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
Q3
Mention the ploidy of the following:
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2. Primary endosperm nucleus in dicot 
3. Leaf cell of a moss
4. Prothallus cell of a fern
5. Gemma cell in Marchantia
6. Meristem cell of a monocot 
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Question Text
Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
Updated OnSep 6, 2023
TopicPlant Kingdom
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes132
Avg. Video Duration4 min