List of top Plant Biotechnology Questions on Crop Physiology

Components of the mitochondrial Electron Transport Chain (ETC):
A. NADH-Coenzyme Q oxidoreductase
B. Cytochrome \(bc_1\) complex
C. Ubiquinone
D. Cytochrome C
E. Cytochrome C Oxidase
Choose the correct sequence of electron transfer through the aforementioned components of the mitochondrial ETC
Enzymes of the "Kennedy pathway" for the triacylglycerol biosynthesis in plants:
A. Glycerol-3-P dehydrogenase
B. Glycerol-3-phosphate acyltransferase
C. Lysophosphatidic acid acyltransferase
D. Phosphatidic acid phosphatase
E. Diacylglycerol acyltransferase
Choose the correct sequence of the action of aforementioned enzymes of the "Kennedy pathway" in the triacylglycerol biosynthesis.
If a 100 $\mu$M solution of NADH exhibits an absorbance of 0.62 at a wavelength of 340 nm in a 1 cm cell, then its molar extinction coefficient would be equal to:
Match List I with List II
List I (Enzyme):
A. Glutamate dehydrogenase
B. GS
C. GOGAT
D. Glutamate decarboxylase

List II (Reaction catalyzed):
I. Catalyzes ATP-dependent conversion of glutamate to glutamine using ammonium as substrate.
II. Catalyzes reductive amination of 2-oxoglutarate to form glutamate using ammonium as substrate.
III. Catalyzes the synthesis of two molecules of glutamate from glutamine and $\alpha$-ketoglutarate.
IV. Catalyzes the synthesis of GABA from glutamate.
V. Catalyses synthesis of aminolevulinic acid in the chlorophyll biosynthetic pathway.

Choose the correct answer from the options given below:
A measure of physiological maturity in sugarcane is :
Identify the crop with the highest Water Use Efficiency (WUE) :
The terms "Leaf Area Index (LAI)" and "Crop Growth Rate (CGR)" were coined by :
Cotyledons are pushed upwards by the rapid elongation of the hypocotyls in
The amount of water transpired by a plant divided by the amount of carbon dioxide assimilated is
(A)
(B)
(C)
(D)
Which one of the following organelles contains enzymes that help in converting stored fatty acids into sugars in germinating seeds?
Ethylene is derived from which of the following amino acids?
The amount of dry matter produced per unit area per unit time is