Chemical Coordination MCQs Class 10 Concise Selina Solutions

Chemical Coordination MCQs Class 10 Concise ICSE Biology Selina Solutions Ch-7. In this article you will get the solutions of MCQs with hint as council latest syllabus. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.

Chemical Coordination MCQs Class 10 Concise ICSE Biology Selina Solutions Ch-7

Board	ICSE
Subject	Biology
Class	10
Book	Selina Concise
Chapter-7	Chemical Coordination
Topics	Solutions of MCQs with hint
Session	2024-25

MCQs on Chemical Coordination

Class 10 Concise ICSE Biology Selina Solutions with Hint Ch-7

Que-1:The only phytohormone which is a gas at ordinary temperature

1. Ethane
2. Ethyl alcohol
3. Ethylene
4. Ethyne

Sol: Ethylene

Hint:  Ethylene is a plant hormones which produce gas

Que-2: The hormone which promotes the ripening of fruits is

1. Auxins
2. Gibberellins
3. Cytokinins
4. Ethylene

Sol: Ethylene

Hint: This Ethylene plant hormones help in ripening of fruit

Que-3: A growth inhibiting hormone in plants

1. Gibberellins
2. Indole-3 acetic acid
3. Abscisic Acid
4. Cytokinins

Sol: Abscisic Acid

Hint: Abscisic Acid plant hormones acts as growth inhibitor by reducing plant metabolism

Que-4: The hormone which stimulates cell division

1. Auxins
2. Cytokinins
3. Gibberellins
4. Abscisic acid

Sol: Cytokinins

Hint: Hormones Cytokinins stimulate cell division in plant.

Que-5: Development of fruits without fertilization is called

1. Parthenogenesis
2. Parthenon
3. Parthenocarpy
4. Dormancy

Sol: Parthenocarpy

Hint: Development of fruits without fertilization is called Parthenocarpy such as banana

Que-6: The response by parts of the plant towards stimulus is called as

1. Nastic movement
2. Tropism
3. Tactic movement
4. Senescence

Sol: Tropism

Hint: Growth movements occurring in response to unidirectional external stimuli in a plant part is called tropic movements.

Que-7: Apical dominance is influenced by

1. Gibberellins
2. Ethylene
3. Cytokinins
4. Auxins

Sol: Auxins

Hint:  due to presence of auxin in apex region of plant it suppress the growth of lateral bud

Que-8: The growth movement of plant parts which occurs due to touch stimulus is called

1. Heliotropism
2. Chemotropism
3. Hydrotropism
4. Thigmotropism

Sol: Thigmotropism

Hint: growth movement of plant parts due to touch is called thigmotropism. such as tendril in creeper touch the support

Que-9: The instrument which can be used to demonstrate geotropism is

1. Manometer
2. Thermostat
3. Clinostat
4. Barometer

Sol: Clinostat

Hint: Clinostat has two set-ups with planted pots. One is static while the other rotates.

Que-10: The hormone which accelerates senescence (ageing) and abscission of leaves is

1. IAA
2. GA₃
3. ABA
4. GA₁

Sol: ABA

Hint: ABA (Abscisic Acid ) hormone accelerates senescence (ageing) and abscission of leaves.

–: End of Chemical Coordination MCQs Class 10 Concise ICSE Biology Selina Solutions Ch-7 :–

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