Seeds Structure and Germination Very Short Answer Biology Class-9 ICSE Selina Publishers

Seeds Structure and Germination Very Short Answer  Biology Class-9 ICSE Selina Publishers Solutions Chapter-6. Step By Step ICSE Selina Concise Solutions of Chapter-6 Seeds Structure and Germination with Exercise-6 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.

Seeds Structure and Germination Exe-6 Very Short Answer Biology Class-9 ICSE Concise Selina Publishers

Board ICSE
Publications Selina Publication
Subject Biology
Class 9th
Chapter-6 Seeds-Structure and Germination
Book Name Concise
Topics Solution of B. Very Short Answer  Type
Academic Session 2023-2024

B. Very Short Answer Type

Seeds Structure and Germination Class-9 Biology Concise Solutions  

Page 55

Question 1.

Correct the following false statements by changing the first/last word only.

(a) Plumule develops into the root system.

(b) Testa is the thin inner layer of the seed coat.

(c) Endothelium separates the endosperm and embryonic region in the maize grain.

(d) Hypocotyl elongates faster in hypogeal germination.

(e) Germination is the period of rest in a seed.

Answer:

(a) Plumule develops into the shoot system.

(b) Tegmen is the thin inner layer of the seed coat.

(c) Epithelium separates the endosperm and embryonic region in the maize grain.

(d) Epicotyl elongates faster in hypogeal germination.

(e) Dormancy is the period of rest in a seed.


B. Very Short Answer Type

Seeds Structure and Germination Class-9 Biology Concise Solutions  

Page 56

Question 2.

Name the following :

(a) A monocotyledonous endospermic seed.

(b) A chemical used in experiments which absorbs oxygen.

(c) Part of the plumule above the embryonic axis of the seed.

(d) A plant which shows viviparous germination.

(e) The layer of endosperm of maize rich in protein.

(f) A seed with folded plumule leaves.

Answer:

(a) Maize

(b) Pyrogallic acid

(c) Shoot

(d) Rhizophora

(e) Aleurone layer

(f) Bean

Question 3.

Fill in the blanks:

(a) In bean seeds, ________ grows faster and the seeds are brought _________ ground.

(b) _______ is a protective layer of radicle and ________ protects the rolled plumule.

(c) A seed is protected by ________ and __________ .

(d) Seeds absorb water through ________ which also helps in diffusion of respiratory gases.

(e) Rich, wheat and maize are rich in _________ food.

Answer:

(a) plumule, above

(b) Coleorhiza, coleoptile

(c) seed coat, testa

(d) micropyle

(e) starch

Question 4.

Arrange the following set of terms in order, so as to be in logical sequence. Rewrite the correct order.

(a) Embryo, 1st male gamete, zygote, egg cell, micropyle.

(b) Zygote, embryo, seed, allogamy, fusion of gametes.

(c) Seed coat bursts, hypocotyls elongates, radicle grows downward, hypocotyls forms loop above the soil, epicotyls elongates.

Answer:

(a) Micropyle, 1st male gamete, egg cell, zygote, embryo

(b) Allogamy, fusion of gametes, zygote, embryo, seed

(c) Seed coat bursts, radicle grows downward, hypocotyls form loop above the soil, epicotyls elongate.

Question 5.

Give two examples of each of the following :

(a) Monocot albuminous seed.

(b) Dicot albuminous seed.

(c) Monocot non-endospermic seed.

(d) Dicot non-endospermic seed.

(e) Viviparous plant.

Answer:

(a) Cereals, millets

(b) Poppy, custard apple

(c) Vallisneria, orchids

(d) Pea, Gram

(e) Rhizophora, Sonneratia

Question 6.

Match the terms given in column A with those of column B.

Column A Column B
Coleoptile Root system
Coleorhiza Cotyledon
Radicle Radicle
Plumule Plumule
Scutellum Shoot system

Answer:

Column A Column B
Coleoptile Plumule
Coleorhiza Radicle
Radicle Root system
Plumule Shoot system
Scutellum Cotyledon

Question 7.

Name the following:

(a) Two types of seeds on the basis of the number of cotyledons.

(b) Two types of seeds on the basis of endosperm.

(c) Three necessary conditions for the germination of seeds.

(d) Two main types of germination.

(e) Two layers of the seed coat.

Answer:

(a) Monocots, Dicots

(b) Albuminous, Exalbuminous

(c) Water, Suitable temperature, Oxygen

(d) Epigeal, Hypogeal

(e) Testa, Tegmen

—  : End of Seeds Structure and Germination B. Very Short Answer Class-9 ICSE Biology Solutions :–

Return to  Return to Concise Selina ICSE Biology Class-9 

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