BBYCT-137 EM 2026 SOLVED ASSIGNMENT

Description

Bachelor’s Degree Programme (BSCG)

Valid from 1st January, 2026 to 31st December, 2026

ASSIGNMENT (Tutor Marked Assignment)

Course Code: BBYCT-137

Course title: PLANT PHYSIOLOGY AND METABOLISM

Assignment Code: BBYCT-137/TMA/2026

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1.Differentiate between the following pairs of terms:

i). Photophosphorylation and Oxidative phosphorylation

ii). Competitive and Non-competitive inhibition

iii). Diffusion and Osmosis

iv). C3 and C4 plants

2.Explain Krebs cycle. Highlight the metabolic intermediates and sites for NADH, FADH2 and ATP production.

3.a). Define the term ‘Vernalization’. What role does it play in agriculture?

b). Explain active transport of metabolites through ionic pumps.

4.a). Explain the mechanism of allosteric enzyme regulation.

b). Discuss the mechanism of opening and closing of stomata.

5.a). Discuss the functions of essential elements.

b). What is stress? Discuss temperature induced stress.

6.Write short notes on any two of the following

: i). Protoosmotic model for phloem transport

ii). Photorespiration

iii). Bioassays for auxins

iv). Phytochrome-mediated responses

7.a). State whether the following statements are ‘True’ or ‘False’:

i). Hydrophilic amino acids create a water-free zone within protein molecules.

ii). Wavelength greater than 700 nm are utilized by bacteria for photosynthesis.

iii). The upward movement of water is known as the ascent of sap

. iv). Uncompetitive inhibition is observed when substrate and inhibitor compete for the same active site of the enzyme.

b). Fill in the blanks:

i). The response of a plant part towards gravity is called ………………… .

ii). In leguminous plants, leghaemoglobin protects ……………… activity.

iii).. The net gain of ATP by complete oxidation of one glucose molecule is ………………… .

iv). Cells undergo plasmolysis when kept in a ………………… solution.

c)Match the items given under column ‘A’ with those given under column ‘B’:

8.a) Give a graphical account of glycolysis.

b)Give an account of Z-scheme involving non-cyclic and cyclic photophosphorylation.

9.a). Discuss various factors that influence Nitrogenase activity.

B) Discuss the importance of plant accessory pigments.

10.a) Explain the polymer trapping model for symplastic loading of phloem.

b) Explain the components of water potential.