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NCERT Solutions for Class 11

NCERT Solutions for Class 11 Biology Chapter 15 Free PDF Download

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

NCERT Solutions for Class 11 Biology Chapter 15 will help you to ace the unsolved problems in the Class 11 Science book prescribed by the NCERT for all the schools of CBSE. These NCERT Solutions presents the best alternative and a very interesting way to learn, which helps to enhance your abilities and help to get ready for CBSE Class 11 exams.

NCERT Solutions for Class 11 Biology Chapter 15 are prepared by our expert faculties to help you to prepare for your exams in a better way and enhance your score. Our NCERT Solutions provide step by step solutions for the questions given in NCERT textbook as per CBSE Board guidelines and are also prepared according to the exam pattern. For solving your doubts we have a team of teachers who provide live doubt solving session only for you.

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

In NCERT Solutions for Class 11 Biology Chapter 15, you will understand about plant growth, differentiation, dedifferentiation and redifferentiation, development, plant growth regulators, photoperiodism, vernalisation and seed dormancy, phases of growth, growth rates, conditions for growth, the discovery of plant growth regulators and physiological effects of plant growth regulators, plant growth and development.

Sub topics covered under NCERT Solutions for Class 11 Biology Chapter 15

  • 15.1 – Growth
  • 15.1.1 – Plant Growth Generally is Indeterminate
  • 15.1.2 – Growth is Measurable
  • 15.1.3 – Phases of Growth
  • 15.1.4 – Growth Rates
  • 15.1.5 – Conditions for Growth
  • 15.2 – Differentiation, Dedifferentiation, and Redifferentiation
  • 15.3 – Development
  • 15.4 – Plant Growth Regulators
  • 15.4.1 – Characteristics
  • 15.4.2 – The Discovery of Plant Growth Regulators
  • 15.4.3 – Physiological Effects of Plant Growth Regulators
  • 15.5 – Photoperiodism
  • 15.6 – Vernalisation

NCERT Solutions for Class 11 Biology Chapter 15

In NCERT Solutions for Class 11 Biology Chapter 15 you will learn about plant growth generally is indeterminate, growth is measurable, phases of growth, growth rates, conditions for growth, differentiation, dedifferentiation, redifferentiation, development,  plant growth regulators, characteristics, physiological effects of plant growth regulators, photoperiodism, and vernalization. Let us now discuss the subtopics in detail.

15.1 – Growth

In this, you will study about the growth of plants which is accomplished by cell division, increase in cell number and cell enlargement.

15.1.1 – Plant Growth Generally is Indeterminate

In this, you will study plant growth is generally indeterminate due to the capacity of unlimited growth throughout life.

15.1.2 – Growth is Measurable

In this, you will study to measure the growth of plants by parameter used to measure growth is an increase in fresh weight, dry weight, length, area, and volume and cell number.

15.1.3 – Phases of Growth

In this, you will study about the different phases of growth which includes formative phase, phase of enlargement, maturation phase.

15.1.4 – Growth Rates

In this, you will study about growth rate which is the increase in growth per unit time, it may be arithmetic or geometrical.

15.1.5 – Conditions for Growth

In this, you will study the necessary condition for growth includes water, oxygen, and essential elements.

15.2 – Differentiation, Dedifferentiation, and Redifferentiation

In this, you will study about differentiation, dedifferentiation, and redifferentiation.

15.3 – Development

In this, you will study about development which is the sequence of events that occur in the life history of cell, organ or organism which includes seed germination, growth, differentiation, maturation, flowering, seed formation, and senescence

15.4 – Plant Growth Regulators

In this, you will study about plant growth regulators are simple molecules of diverse chemical composition which may be indole compounds, adenine derivatives or derivatives of carotenoids.

15.4.1 – Characteristics

In this, you will study about characteristics of the plant growth regulator like auxin, etc.

15.4.2 – The Discovery of Plant Growth Regulators

In this, you will study about discovery of plant growth regulators.

15.4.3 – Physiological Effects of Plant Growth Regulators

In this, you will study about physiological effects of plant growth regulators.

15.5 – Photoperiodism

In this, you will study about photoperiodism is the effect of photoperiods or day duration of light hours on the growth and development of a plant, especially flowering.

15.6 – Vernalisation

In this, you will study about vernalisation is the process of shortening of the juvenile or vegetative phase and hastening of flowering by cold treatment.

You can download NCERT Solutions for Class 11 Biology Chapter 15 PDF by clicking on the button below.

NCERT Solutions for Class 11 Biology Chapter 15 Free PDF Download

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