NCERT Solutions for class 11 Biology Chapter 11 : Transport in Plants

NCERT Solutions for Class 11 Biology Chapter 11 Transport in Plants are provided in the article below. This Chapter 11 is included in Unit-IV Plant Physiology, which is omitted from CBSE Class 11 Syllabus 2022-23. It comprises 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:

Water Potential
Osmosis
Plasmolysis
Imbibition
Transpiration and active transportation

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

Download PDF: NCERT Solutions for Class 11 Biology Chapter Transport in Plant

NCERT Solutions for Class 11 Biology Chapter 11

Class 11 Biology Chapter 11 Transport in Plants: Important Topics

Plants use chlorophyll, present in the leaves, to photosynthesize energy using CO₂. As multicellular organisms, plants have specialized groups of cells performing different functions. The roots absorb raw materials such as phosphorus, nitrogen, and other minerals necessary for the sustenance of the plant.

Simple Diffusion

Here, the molecules move from a region of higher concentration to a region of lower concentration. This process requires no energy.

Active Transport

This mechanism helps to transfer molecules from a region of lower to a region of higher concentration with the help of membrane proteins. This system is called active transport as it requires ATP to function.

Water Potential

Water potential is used by the plants so that they can transport water to the leaves that help in carrying out photosynthesis. Solute potential and pressure potential are the two main components of water potential.

Osmosis

It can be defined as the movement of molecules from a region of higher concentration to a region of lower concentration across a semi-permeable membrane until an equilibrium is reached.

Plasmolysis

Plasmolysis refers to the process in which plant cell loses water when placed in a hypertonic solution. It depends upon three types of solutions:

Isotonic: It is the two solutions with the same osmotic pressure across the semi-permeable membrane.
Hypotonic: This is the solution with lower osmotic pressure than another solution.
Hypertonic: This is the solution with higher osmotic pressure than another solution.

Imbibition

Imbibition is the process of adsorption of water by solids known as colloids, which results in an increase in volume. For example, adsorption of water by seeds.

Transpiration

It is the removal of excess water from the aerial parts of the plants and it mainly takes place through the stomata of the leaves. It is affected by light, temperature, wind, and humidity.

Chapter Related Links:

Diffusion	Facilitated Diffusion	Plant-water relations
Long distance transport of water	Uptake and transport of mineral nutrients	Phloem Transport
Difference Between Diffusion and Osmosis	Transpiration pull	Means of transport

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

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