The Flower Structured Biology Class-9 ICSE Selina Publishers Solutions Chapter-4. Step By Step ICSE Selina Concise Solutions of Chapter-4 The Flower with Exercise-4 including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.
The Flower Exe-4 Structured Biology Class-9 ICSE Concise Selina Publishers
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Biology |
| Class | 9th |
| Chapter-4 | The Flower |
| Book Name | Concise |
| Topics | Solution of E. Structured/Application/Skill Answer Type |
| Academic Session | 2023-2024 |
E. Structured/Application
The Flower Class-9 Biology Concise Solutions
Page 38
Question 1.
The figure given alongside represents generalized arrangement of the different parts of a bisexual flower. Name the parts numbered 1-10.
Answer:
1: Anther; 2: Filament: 3: Ovule: 4: Placenta; 5: Stigma;
6: Style; 7: Ovary; 8: Petal; 9: Sepal; 10: Receptacle/Thalamus
Question 2.
Given below are two figures (A and B) of a. Study the figures carefully and answer the following questions:
(a) Which major organ of a flower does the figure A represent? What is the collective term for this organ ?
(b) Are the contents of the pollen sacs in B male or female?
(c) Can you state how the contents of the pollen sacs would come out?
Answer:
(a) Figure A represents stamen. hence Stamens collectively form Androecium.
(b) Contents of the pollen sacs in B are male gametes.
(c) The contents of the pollen sacs would come out through agents like air, wind, insects leading to pollination in flowers.
Question 3.
The figures (A, B, C and D) give below represent different kind of androecium. Name the kind of androecium (A, B, C and D) and give one example of a flower having each.
Answer:
- A → Polyandrous. e.g. Petunia.
- B → Monadelphous. e.g. China Rose.
- C → Diadelphous. e.g. Pea.
- D → Polyadelphous. e.g. Bombax.
Question 4.
Draw a neat diagram of male (♂) and female (♀) reproductive organs of a flower.
(a) Label two important parts of the male reproductive organ.
(b) Label four important parts of the female reproductive organ.
(c) Write the collective name/whorl of each reproductive organ.
(d) Name the unicellular, sexual structures produced in each.
(e) Name the parts of the female reproductive organ that develop into a fruit and seed respectively.
Answer:
Below is the labelled diagram of male (♂) and female (♀) reproductive organs of a flower:
(c) The collective name of male reproductive organs is Androecium and female reproductive organs is Gynoecium.
(d) Pollen grains are produced in male reproductive organs and Ovules are produced in female reproductive organs.
(e) Ovary develops into fruit and Ovules develop into seeds, respectively.
Question 5.
Draw either an entire flower or a part of it showing the following conditions :
(a) Polysepalous calyx
(b) Gamosepalous calyx
(c) Polypetalous corolla
(d) Gamopetalous corolla
(e) Bracteate flower
Answer:
(a) Polysepalous calyx
(b) Gamosepalous calyx
(c) Polypetalous corolla
(d) Gamopetalous corolla
(e) Bracteate flower
— : End of The Flower E. Structured/Application/Skill Answer Class-9 ICSE Biology Solutions :–
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