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Chapter Summary

Growth and Development in Plants

Telangana Open School (TOSS) · Class 12 · Biology

Summary of Growth and Development in Plants for Telangana Open School (TOSS) Class 12 Biology. Key concepts, important points, and chapter overview.

43 questions35 flashcards5 concepts

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Overview

Plants, like all living organisms, grow and develop throughout their life cycle. This chapter explores how plants increase in size and complexity through processes like cell division, elongation, and differentiation. It also explains how internal hormones and external factors like light, temperature

Key Concepts

Growth refers to an irreversible increase

Growth refers to an irreversible increase in size, number, or volume of cells, while development includes all qualitative and quantitative changes suc

Cellular growth occurs in three stages

Cellular growth occurs in three stages: (i) Cell Division (mitosis increases cell number), (ii) Cell Enlargement (cells expand due to water uptake), a

A graph showing plant growth over

A graph showing plant growth over time with three phases: Lag Phase (slow start), Log Phase (rapid growth), and Stationary Phase (growth slows and sto

Chemicals produced in small amounts

Chemicals produced in small amounts that regulate growth. Major types include Auxin (cell elongation), Gibberellins (stem growth, seed germination), C

Germination is the revival of metabolic

Germination is the revival of metabolic activity in seeds leading to a new plant. Dormancy is a resting phase where seeds do not germinate despite fav

Learning Objectives

  • Define growth and development in plants
  • Explain the stages of cellular growth and the sigmoid growth curve
  • Describe methods to measure plant growth
  • Identify external and internal factors affecting plant growth
  • Understand the roles of plant hormones (auxin, gibberellins, cytokinins, ethylene, abscisic acid)

Frequently Asked Questions

What are the important topics in Growth and Development in Plants for Telangana Open School (TOSS) Class 12 Biology?
Growth and Development in Plants covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Growth and Development in Plants — Telangana Open School (TOSS) Class 12 Biology?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Growth and Development in Plants

All 41 chapters — Telangana Open School (TOSS) Class 12 Biology Chapter Summary

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