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Selina solutions for Concise Biology Class 10 Icse chapter 7 - Chemical coordination in plants [Latest edition]

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Concise Biology Class 10 Icse - Shaalaa.com

Chapter 7: Chemical coordination in plants

Multiple chioce typeShort answer typeLong answer typeStructured/Application/Skill type

Multiple chioce type [Pages 88 - 89]

Selina solutions for Concise Biology Class 10 Icse Chapter 7 Chemical coordination in plants Multiple chioce type [Pages 88 - 89]

Multiple chioce type | Q 1 | Page 88

A plant hormone related with inhibition of senescence is

  • Ethylene

  • ABA

  • Bromic acid

  • GA

Multiple chioce type | Q 2 | Page 88

Apical dominance phenomenon is caused by

  • Auxins

  • GA

  • Cytokinins

  • ABA

Multiple chioce type | Q 3 | Page 88

Which of the following hormones regulate stomatal colour?

  • Auxins

  • GA

  • ABA

  • Cytokinins

Multiple chioce type | Q 4 | Page 88

Auxins are abundantly produced in

  • base of the root

  • base of the shoot

  • shoot

  • meristematic region of the shoot

Multiple chioce type | Q 5 | Page 88

A higher concentration of ethylene is found in

  • green banana

  • ripe banana

  • fresh potato tuber

  • green apple

Multiple chioce type | Q 6 | Page 88

Common gibberellin is

  • GA1

  • GA2

  • GA3

  • GA7

Multiple chioce type | Q 7 | Page 88

Stems are

  • positively geotropic and negatively phototropic

  • positively geotropic and positively phototropic

  • negatively geotropic and positively phototropic

  • negatively phototropic and negatively geotropic

Multiple chioce type | Q 8 | Page 89

In tropic movements, plant parts move

  • away from the stimulus

  • towards the stimulus

  • either towards or away from the stimulus

  • only towards water

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Short answer type [Page 89]

Selina solutions for Concise Biology Class 10 Icse Chapter 7 Chemical coordination in plants Short answer type [Page 89]

Short answer type | Q 1 | Page 89

Match the items in column A with those of column B.

Column A

Column B

(a) Auxin

(i) apical dominance

(b) Gibberellin

(ii) cell division

(c) Cytokinin

(iii) fruit ripening

(d) Ethylene

(iv) internodal elongation

Short answer type | Q 2.1 | Page 89

Differentiate between:

Thigmotropism and geotropism

Short answer type | Q 2.2 | Page 89

Differentiate between: 

Phototropism and chemotropism

Short answer type | Q 3 | Page 89

How is movement in plants different from that in animals?

Short answer type | Q 4 | Page 89

Name the stimulus which causes the following movements in plants.

phototropism, thigmotropism, hydrotropism and geotropism

Short answer type | Q 5.1 | Page 89

Name the following.

Hormone that stimulates growth by cell division.

Short answer type | Q 5.2 | Page 89

Name the following.

Growth retarding hormone in plants.

Short answer type | Q 5.3 | Page 89

Name the following.

Main auxin found in most plants.

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Long answer type [Page 89]

Selina solutions for Concise Biology Class 10 Icse Chapter 7 Chemical coordination in plants Long answer type [Page 89]

Long answer type | Q 1 | Page 89

What are tropic movements? Briefly explain various types of tropic movements in plants.

Long answer type | Q 2 | Page 89

List five plant growth hormones and briefly describe their roles.

Long answer type | Q 3 | Page 89

The response of plants to gravity is known as geotropism. How are plant parts sensitive to gravity? Describe with the help of a diagram.

Long answer type | Q 4 | Page 89

What is meant by positive and negative tropic movements in plants? Explain them by giving suitable examples. 

Long answer type | Q 5 | Page 89

With the help of an experiment, prove that roots are more positively hydrotropic than geotropic.

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Structured/Application/Skill type [Page 89]

Selina solutions for Concise Biology Class 10 Icse Chapter 7 Chemical coordination in plants Structured/Application/Skill type [Page 89]

Structured/Application/Skill type | Q 1.1 | Page 89

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question :

Name the scientific phenomenon that is being overcome by pruning.

Structured/Application/Skill type | Q 1.2 | Page 89

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question :

What plant hormone is responsible for the scientific phenomenon mentioned in 1.1.

Structured/Application/Skill type | Q 1.3 | Page 89

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question :

Name one plant hormone which inhibits the said phenomenon.

Structured/Application/Skill type | Q 2.1 | Page 89

The figure given below show the stages of ripening in a banana. Answer the question that follow:

Name the plant hormone responsible for the above changes.

Structured/Application/Skill type | Q 2.2 | Page 89

The figure given below shows the stages of ripening in a banana. Answer the question that follow:

Mention two characteristic features of this hormone.

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Chapter 7: Chemical coordination in plants

Multiple chioce typeShort answer typeLong answer typeStructured/Application/Skill type
Concise Biology Class 10 Icse - Shaalaa.com

Selina solutions for Concise Biology Class 10 Icse chapter 7 - Chemical coordination in plants

Selina solutions for Concise Biology Class 10 Icse chapter 7 (Chemical coordination in plants) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Biology Class 10 Icse solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Biology Class 10 Icse chapter 7 Chemical coordination in plants are The Physiological Effects of Plant Hormones, The Tropic Movements in Plants.

Using Selina Class 10 solutions Chemical coordination in plants exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 7 Chemical coordination in plants Class 10 extra questions for Concise Biology Class 10 Icse and can use Shaalaa.com to keep it handy for your exam preparation

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