Name: Plant Biochemistry
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IGNOU MBCE-12 (January 2026 – December 2026) Assignment Questions

PART-(A)

1 Give an account of vacuoles and their functions.

2 (a) Describe the chemiosmotic theory.
(b) Explain photosynthetic apparatus.

3 Describe Calvin cycle and its regulation.
4 Describe biological nitrogen fixation.

5 (a) Give an overview of ammonia assimilation in plants
(b) Explain the synthesis of glutathione and its functions.

PART-(B)

1 Give an account of water and heat stress for plant growth.

2 Write a note on the following:
(a) Plant response to abiotic stresses.
(b) Plant defense mechanisms.

3. Illustrate how cytokinins can be used to enhance crop yield and quality.
4 Discuss the principles of photoperiodism.
5 Highlight the characteristics and medicinal properties of alkaloids.

IGNOU MBCE-12 (July 2024 – December 2025) Assignment Questions

PART-(A)

1. Give an account of various types of plastids found in plants.

2. (a) Describe the structure of F-ATPase.
(b) Mention and explain the function of any five inhibitors of photosynthesis.

3. Describe Kranz anatomy and its significance in C4 pathway.

4 Compare GDH and GS-GOGAT pathway of ammonium assimilation.

5. (a) Explain the purpose of synthesizing different exporting forms of organic nitrogen.
(b) Give an overview of sulphate uptake and transport in plants.

PART-(B)

1. Give an account of various abiotic stressors for plant growth.

2. Write a note on the following:
(a) Generation of ROS in plants.
(b) Plant defense mechanisms.

3. Illustrate how auxins regulate phototropism and gravitropism.

4. Discuss the molecular basis of florigen concept and mechanism of flowering.

5. Highlight the medicinal properties of secondary metabolites.

MBCE-12 Assignments Details

University	:	IGNOU (Indira Gandhi National Open University)
Title	:	Plant Biochemistry
Language(s)	:	English
Code	:	MBCE-12
Degree	:	MSCBCH
Subject	:	Biochemistry
Course	:	Core Courses (CC)
Author	:	Gullybaba.com Panel
Publisher	:	Gullybaba Publishing House Pvt. Ltd.

IGNOU MBCE-12 (Jan 26 - Dec 26, Jul 24 - Dec 25) - Solved Assignment

Are you looking to download a PDF soft copy of the Solved Assignment MBCE-12 – Plant Biochemistry Then GullyBaba is the right place for you. We have the Assignment available in Urdu language. This particular Assignment references the syllabus chosen for the subject of English, for the Jan 26 - Dec 26, Jul 24 - Dec 25 session. The code for the assignment is MBCE-12 and it is often used by students who are enrolled in the IGNOU Solved Assignments, MSCBCH Degree. Once students have paid for the Assignment, they can Instantly Download to their PC, Laptop or Mobile Devices in soft copy as a PDF format. After studying the contents of this Assignment, students will have a better grasp of the subject and will be able to prepare for their upcoming tests.