CBSE Class 11 Biology Chapter-11 Important Questions - Free PDF Download
FAQs on Important Questions for CBSE Class 11 Biology Chapter 11 - Transport in Plants
1. What are the main topics covered in the Chapter 11 Transport in Plants of Class 11 Biology ?
Students will study different topics related to the process of transportation of minerals, waters, and food substances to the various parts of the plant. Students will study how the transport of water takes place in distant parts. They will also study transpiration, factors affecting transpiration, and the importance of transpiration. Students will also learn how xylem and phloem help in the transport of food nutrients, water, and minerals to the different plant parts in Chapter 11 Transport in Plants of Class 11 Biology.
2. What do you understand by transport in plants according to Chapter 11 Transport in Plants of Class 11 Biology?
Plants that do not have a circulatory system still transport minerals, water, and food nutrients to distant parts. The water is absorbed by the roots from the soil and it reaches the different parts of the plant. Food is prepared in the leaves of the plants but food also reaches the most distant part of the plant. Transport of substances is carried out in plants to long distances through the vascular system which includes the xylem and phloem.
3. Write a note on wilting of plants according to the Chapter 11 Transport in Plants of Class 11 Biology?
Wilting is a condition in which the leaves of a plant do not remain turgid. This causes folding, drooping, and rolling of leaves and other soft parts of the plant. Wilting occurs when more water is lost during transpiration than absorbed by the roots. Wilting may occur for a short period called temporary wilting or forever and is called permanent wilting. Temporary wilting occurs during the daytime when there is strong sunlight. Permanent wilting may occur when the loss of water during transpiration is much higher than absorption by the roots.
4. Name the tissues that transport minerals and food in plants according to Chapter 11 ‘Transport in Plants’ of Class 11 Biology?
In plants, food and minerals are transported in different ways. Single cells uptake and release water and other solutes through the process of diffusion and osmosis. Minerals and water molecules are also transported to the plant parts using short-distance transport methods. The two most important tissues responsible for transporting substances to the distant plant parts include the xylem and phloem. Xylem and phloem are also called vascular systems of the plant. They help in transporting necessary substances even to the tip of the roots buried deep under the earth.
5. Discuss why is transpiration important for plants according to Chapter 11 Transport in Plants of Class 11 Biology?
Transpiration is an important process that occurs naturally. It is a process during which excess water gets evaporated from the exposed parts of the plant. It helps in maintaining the proper shape and texture of the plants. But, excess transpiration is not good for plants. If excess transpiration takes place it makes the leaves droop and wilt. This occurs when roots are not able to absorb the required amount of water from the soil and the rate of transpiration is more.