NCERT Solutions Class 11 Biology Chapter 15

NCERT Solutions for Class 11 Biology Chapter 15

NCERT Solutions are considered to be the go-to resource for students studying in CBSE affiliated schools or for those preparing for competitive medical entrance exams. Extramarks offers NCERT Solutions Class 11 Biology Chapter 15 that comprise detailed answers to all the questions listed at the end of the chapter. The solutions are prepared by subject-matter experts, thus ensuring a high level of accuracy. Students can refer to the solutions to prepare as well as revise for school and competitive exams.

NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development 

 

Access NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development

NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development

Students can refer to NCERT Solutions for Class 11 Biology Chapter 15 for a comprehensive understanding of the concepts. As solutions have answers to all the textbook questions, it aids students with their exam preparation and in scoring higher marks.

The tricky questions are explained in a simple language in the solutions. Also, the complex parts are segregated so that students find them easy to comprehend. What makes the NCERT Solutions for Class 11 Biology Chapter 15 a go-to study material is that they are prepared by subject matter experts.

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

It’s amazing to see how structures like stems, leaves, flowers, fruits, and seeds emerge in such a systematic manner. We studied the different parts of the plant in Chapter 5, and through Chapter 15, we will look at how growth and development are seen in plant tissues.

The stages of plant growth, rate of growth, and growth conditions are all also thoroughly discussed in the chapter. We will learn about the stages of development of the plant and physiological factors that influence plant growth. Plant Growth Regulators like Auxins, Gibberellins, and Cytokinins will be studied here. Furthermore, it has been discovered that some plants require periodic light exposure to flowers, whereas others require low-temperature exposure.

 

Division of Marks for Plant Growth and Development

Chapter 15 Plant Growth and Development is a part of Unit 4. The Unit 4 has a weightage of 18 marks in the question paper. Either short or 5 marks long answer questions might come from this chapter.

Advantages of Class 11 Biology Plant Growth and Development NCERT Solutions

To prepare for this chapter, students must thoroughly read the Class 11 Biology NCERT Textbook and solve all questions given at the end of the chapter. The questions help students not only gauge their understanding but consolidate their learning. For this, they can use the NCERT Solutions for Chapter 15 Biology Class 11 provided by Extramarks. 

Following are the advantages of Class 11 Biology Chapter 15 Plant Growth and Development NCERT Solutions: 

  • NCERT Solutions for Chapter 15 Biology Class 11 assists students in learning how to effectively answer a specific question.
  • Students can use these solutions to double-check their answers and correct any errors.
  • The answers are explained with the help of neatly labelled diagrams.
  • The solutions have been prepared by subject matter experts.

Related Questions

What is the name of the hormone that supports the rapid elongation of internodes or leaf base in deepwater rice plants?

  1. Abscisic acid
  2. Ethylene
  3. Cytokinin
  4. Gibberellin

Ans: Gibberellin

Which of these are long-day plants?

  1. Wheat, Poppy, Soyabean
  2. Wheat, Poppy, Beat
  3. Wheat, Oat, Soyabean
  4. D. Wheat, Xanthium, Paddy

Ans: Wheat, Poppy, Beat

Charizard occurs in the soil:

  1. A. Around soil particles
  2. Inside micropores
  3. Inside macropores
  4. In percolation chambers.

Ans: Inside micropores

The dedifferentiated cells mature to form some specific cells to perform specific functions, this is referred to as:

  1. Differentiation
  2. Dedifferentiation
  3. Redifferentiation
  4. Development

Ans: Redifferentiation

Which of the following plants is not an example of heterophylly?

  1. Cotton
  2. Mango
  3. Larkspur
  4. Coriander

Ans: Mango

The growth of tendrils in the pea plant is due to:

  1. Effect of light
  2. Effect of gravity
  3. Rapid cell division in tendrillar cells that are away from the support
  4. Rapid cell divisions in tendrillar cells in contact with the support

Ans: Rapid cell division in tendrillar cells that are away from the support

Phototropic and geotropic movements are linked to:

  1. Gibberellins
  2. Cytokinins
  3. Auxin
  4. None of the above

Ans: Auxin

 

FAQs (Frequently Asked Questions)

The important topics are –

15.1 – Growth

15.2 – Differentiation, Dedifferentiation and Redifferentiation

15.3 – Development

15.4 – Plant Growth Regulators

15.5 – Photoperiodism

15.6 – Vernalisation

By referring to the NCERT Solutions provided by Extramarks, students have direct access to well-structured answers to questions provided at the end of the chapter. They will have no difficulty in understanding them as all of the key ideas are described in a straightforward manner. As subject matter experts have made these solutions as per CBSE guidelines, students can look at them as reliable reference material.

Plant growth is uncertain as it continues throughout its existence. This is possible because plants have meristems all over their bodies. Meristems have cells that divide and multiply. Open kinds of growth are those in which the meristems add new cells to the mix. 

Photoperiodism is an organism’s physiological response to the length of the night or a dark period. They are divided into three groups based on their photoperiods: short-day plants, long-day plants, and day-neutral plants.

Vernalisation is the process of exposing plants or seeds to cold temperatures to promote flowering or seed production. It is a 50-day therapy performed at a low temperature between 2°C and 12°C.