Class 11 Biology Important Chapter 11 Photosynthesis in Higher Plants

Class 11 Biology Important Chapter 11 Photosynthesis in Higher Plants Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Biology Important Solutions and select need one. AHSEC Class 11 Biology Additional Notes English Medium Download PDF. HS 1st Year Biology Important Solutions in English.

Class 11 Biology Important Chapter 11 Photosynthesis in Higher Plants

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Biology Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Biology Important Notes in English for All Chapters, You can practice these here.

Photosynthesis in Higher Plants

Chapter: 11

IMPORTANT QUESTION AND ANSWER

Very Short and Short Answer Type Question: 

1. What is solute potential?

Ans. It is decrease in the chemical potential of pure water due to presence of solute particles in it.

2. Write two factors on which osmosis depends. 

Ans. Pressure gradient and concentration gradient.

3. What is imbibition?

Ans. The absorption of water by solid particles of an adsorbent causing it to enormously increase in volume without forming a solution is called imbibition.

4. Define translocation.

Ans: It is the transport over longer distances proceeded through xylem and phloem vascular system. 

5. Two factors affect water potential. What are they?

Ans (i) The amount of solute and.

(ii) The external pressure.

6. Mention two ways of absorption of water in plants.

Ans. (i) Apoplast pathway, and.

(ii) Symplast pathway.

7.  Define wall pressure.

Ans. The pressure extended by the rigid cell wall on the protoplasm of cell opposite to the turgor pressure is called wall pressure.

8. Why is energy required to develop root pressure?

Ans: The generation of root pressure is an active process. It is because only when minerals are accumulated against concentration gradient by active absorption using metabolically produced energy.

9. What is turgor pressure?

Ans. Turgor pressure is the pressure responsible for pushing the cell membrane against the cell wall due to the entry of water by osmosis.

10. Mention any two uses of trans-piration of plants.

Ans. (i) It maintains the turgidity of cells.

(ii) It reduces negative tension downwards to the roots and this helps in the ascent of sap.

11. What is imbibition?

Ans. It is a special type of diffusion when water is absorbed by solids-colloids and causing them to increase in volume.

12. Define guttation.

Ans. Water loss in liquid phase from the plants.

13. Mention the osmotic relationship of cell when it is put in:

(i) A hypotonic solution.

Ans: Endosmosis.

(ii) A hypertonic solution.

Ans: Exosmosis.

(iii) An isotonic solution.

Ans: No.

14. What are the methods of transport of substances within the plants?

Ans. Substances move through the plant by means of diffusion, facilitated diffusion, active transport and mass or bulk flow.

15. What are two types of transport proteins of the membrane?

Ans. Transport proteins are of two types carrier proteins and channel proteins. Carrier proteins bind to particular solute and transport it to other side of membrane. Channel proteins allow diffusion of solutes of an appropriate size.