NCERT Solutions for Class 11 Biology Chapter 15: Get Free PDF - Embibe
  • Written By Abhishek_verma
  • Last Modified 07-09-2022
  • Written By Abhishek_verma
  • Last Modified 07-09-2022

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

NCERT Solutions for Class 11 Biology Chapter 15: Plant Growth and Development, Class 11 NCERT Solutions can be easily accessed on this page. The solutions offered here are majorly based on the NCERT textbook and have been developed by Embibe’s academic experts. The solutions are given in an orderly way, using schematic illustrations wherever applicable. This makes it easy for the students to follow and ensures that they get the most out of it.

CBSE Class 11 Biology Chapter 15 talks about Phases of Growth, Growth Rates, Conditions for Growth, Plant Growth Regulators, Photoperiodism and many more. Embibe provides a set of 480+ practice questions for all the sub-topics of Chapter 15. Students must practice all the in-text questions provided by Embibe to achieve the best marks in the exam. Keep reading the article to know NCERT solutions for Class Class 11 Biology Chapter 15.

NCERT Solutions for Class 11 Biology Chapter 15: Important Topics

Chapter 15, Plant Growth and Development, teaches the students about the basics, such as various phases of growth, different plant growth regulators and other important topics that students will face during their higher grades. Students must explore and find out answers to as many questions as possible to become efficient in the subject.

Embibe delivers solutions to all the questions of Class 11 Biology Chapter 15 textbooks, considering the latest syllabus. Students can access the solutions at Embibe for free to achieve good grades. Along with NCERT solutions, Embibe also delivers NCERT 3D Videos, NCERT Exemplars, Embibe Explainers, etc., for free.

Below-mentioned is the list of topics present in Class 11 Biology Chapter 15.

S NoTopic Name
1Plant Growth
2Development in Plants
3Plant Growth Regulators
4Photoperiodism
5Vernalization

NCERT Solutions for Class 11 Biology Chapter 15: Points to Remember

Some of the important points to be remembered from NCERT Class 11 Biology Chapter 15 have been mentioned below:

  • Growth is one of the most conspicuous events in any living organism.
  • It is an irreversible increase that can be expressed in terms of size, area, length, height, weight, etc.
  • It conspicuously involves increased protoplasmic material.
  • Root and shoot apical meristems, sometimes along with intercalary meristem, contribute to the growth of plants.
  •  Growth in plants is indeterminate as plants retain the capacity for unlimited growth throughout their life.
  • When a cell loses the capacity to divide, it leads to differentiation that results in the development of structures that is commensurate with the function the cells finally have to perform.
  • A differentiated cell may dedifferentiate and then redifferentiate.
  • Plants exhibit plasticity in development, i.e., the same organ may show different kinds of structures in different phases of life or in different habitats.
  • Plant growth and development are under the control of both intrinsic and extrinsic factors.
  • Plant growth regulators (PGRsPGRs) are organic molecules of diverse chemical composition which are synthesized in one part of the plant body and transported to another part where they are active.
  • Plant growth and development is also affected by light, temperature, nutrition, oxygen status, gravity and such external factors.
  • The growth hormones are translocated through different tissues, e.g., auxins through parenchyma, GAS and ABA mainly through phloem and cytokinins through the xylem.
  • Ethylene is a gaseous hormone and is readily absorbed and transported within the plant body.
  • There are two kinds of flowering stimuli, a hormone called florigen and another is proteinaceous pigment known as phytochrome.

NCERT Solutions for Class 11 Biology: All Chapters

Students can find the detailed NCERT Class 11 Biology solutions as mentioned below for quick reference:

FAQs on NCERT Solutions for Class 11 Biology Chapter 15

Q.1: Where can I download NCERT Solutions for Class 11 Biology Chapter 15?
Ans
: On this Embibe Page, candidates can download the NCERT Solutions for Class 11 Biology Chapter 15 Plant Growth & Development.

Q.2: What are the phases of plant growth?
Ans
: List of all complete six Plant Growth Stages are Sprout, Seedling, Vegetative, Budding, Flowering, and Ripening.

Q3. Where can I get NCERT Solutions for Class 11 Biology for all chapters?
Ans.
Download NCERT Solutions for Class 11 Biology for all chapters from this link given on Embibe.

Q.4: What are Photoperiodism and its types?
Ans
: Photoperiodism is the physiological reaction of organisms to the length of the night or a dark period. According to photoperiods, they are classified into three groups: short-day plants, long-day plants, and day-neutral plants.

Q.5: What is vernalization Class 11 Chapter 15 Biology?
Ans
: Vernalization is the artificial exposure of plants or seeds to low temperatures to stimulate flowering or enhance seed production. A low temperature between 2°C and 12°C with a 50- day treatment is required.

Adaptive Practice with Solutions To Help You Ace Important Topics for 11th NCERT