NCERT Solutions For Class 11 Biology Chapter 15: Plant Growth and Development

NCERT Solutions for Class 11 Biology Chapter 15 Plant Growth and Development are provided in the article below. It contains all the important definitions, concepts, and methodologies that will be really beneficial for the students appearing for CBSE Class 11 Exam 2022-23. The important topics that are included in this chapter are:

Expected no. of Questions: 1-2 questions of around 3 marks.

Download PDF: NCERT Solutions for Class 11 Biology Chapter 15 Plant Growth and Development

NCERT Solutions for Class 11 Biology Chapter 15

Class 11 Biology Chapter 15 Plant Growth and Development: Important Topics

Plant growth is accomplished by cell division, increase in cell number, and cell enlargement. So, growth is a quantitative phenomenon that can be measured in relation to time. Plant growth is generally indeterminate due to the capacity for unlimited growth throughout life.

Seed Germination

Seed germination is referred to as the fundamental process with the help of which different plant species grow from a single seed into a plant. This process affects both crop yield and quality. A common example of seed germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm.

Growth Regulators

There are, generally, five types of plant hormones, namely, auxin, gibberellins (GAs), cytokinins, abscisic acid (ABA), and ethylene. Apart from these, there are more derivative compounds, both natural and synthetic, which also act as plant growth regulators.

Chapter Related Links:

Auxins	Gibberellins	Photoperiodism
Seed Dormancy	Phototropism	Seed Definition
Growth Development	Stress Hormones	Plant Roots

CBSE Class 11 Biology Study Guides:

CBSE Class 11 Biology Syllabus	CBSE Class 11 Biology NCERT Textbook	CBSE Class 11 Biology Sample Paper
Biology Study Material	Biology MCQs	Difference between in Biology

CBSE CLASS XII Related Questions

1.
Which of the following is a secondary consumer ?
- Grasshopper
- Cow
- Fish
- Hawk
View Solution
2.
"Indo-Burma" is considered as a hotspot. What is meant by the term "hotspots" in biodiversity ? List two criteria used for determining a "hotspot". Name any two hotspots of India.
View Solution
3.
Identify the parts P, Q, R, S in the figure given below and select the option in the correct order.
- P - Seed, Q - Thalamus, R - Mesocarp, S - Endocarp
- P - Thalamus, Q - Seed, R - Endocarp, S - Mesocarp
- P - Seed, Q - Thalamus, R - Endocarp, S - Mesocarp
- P - Thalamus, Q - Seed, R - Mesocarp, S - Endocarp
View Solution
4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
5.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
6.
Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.
- Mycorrhizal associations between fungi and roots of higher plants
- Sea anemone and clownfish
- Abingdon tortoises and goats in the Galapagos Island
- Cuscuta on hedge plants
View Solution

View All

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NCERT Solutions For Class 11 Biology Chapter 15: Plant Growth and Development

NCERT Solutions for Class 11 Biology Chapter 15

Class 11 Biology Chapter 15 Plant Growth and Development: Important Topics

Seed Germination

Growth Regulators

CBSE CLASS XII Related Questions

1.
Which of the following is a secondary consumer ?

2.
"Indo-Burma" is considered as a hotspot. What is meant by the term "hotspots" in biodiversity ? List two criteria used for determining a "hotspot". Name any two hotspots of India.

3.
Identify the parts P, Q, R, S in the figure given below and select the option in the correct order.

4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

6.
Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.

Similar Biology Concepts

Comments

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NCERT Solutions For Class 11 Biology Chapter 15: Plant Growth and Development

NCERT Solutions for Class 11 Biology Chapter 15

Class 11 Biology Chapter 15 Plant Growth and Development: Important Topics

Seed Germination

Growth Regulators

CBSE CLASS XII Related Questions

1.Which of the following is a secondary consumer ?

2."Indo-Burma" is considered as a hotspot. What is meant by the term "hotspots" in biodiversity ? List two criteria used for determining a "hotspot". Name any two hotspots of India.

3.Identify the parts P, Q, R, S in the figure given below and select the option in the correct order.

4.Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk. Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

6.Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Which of the following is a secondary consumer ?

2.
"Indo-Burma" is considered as a hotspot. What is meant by the term "hotspots" in biodiversity ? List two criteria used for determining a "hotspot". Name any two hotspots of India.

3.
Identify the parts P, Q, R, S in the figure given below and select the option in the correct order.

4.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

6.
Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.