During the production of alcohol by fermentation using budding yeast, oxygen supply is kept ‘limited. Why? (1) Budding yeasts are obligate anaerobes and cannot tolerate oxygen. (2) Budding yeasts lose […]
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CSIR NET Life Science Previous Year Questions and Solution on applied biology
Anaerobic Microbial Fermentations
Which of the following microbial fermentations are anaerobic? (1) Ethanol and acetone-butanol. (2) Citric acid and propionic acid. (3) Penicillin and vitamin B12 (4) Streptomycin and rifampicin. Correct answer: (1) […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Key Features of Fermentation
Which one of the following statements CANNOT be included while defining the fermentation process? (1) Alcohol is formed from sugar residues (2) Requires an electron transport system. (3) Utilizes an […]
CSIR NET Life Science Previous Year Questions and Solution on applied biology
Difference Between Biochemical and Microbial Fermentation in Biotechnology
The word “fermentation” is used in biochemistry and Microbial technology to denote different phenomenon. If the former is called C and latter is called T. Which of the following statement […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Basic Structural Units of Plant Natural Products
Given below are various plant natural product and their basic structural unit: List I List II Natural Product Basic Unit A. Phenolics I. Five-carbon isoprene unit B. Alkaloids II.Glucose unit […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Plant Defense Compound Classification
36. Artemisinin and Dhurrin belongs to respective groups of the plant natural compounds (1) Alkaloids and Terpenes (2) Flavonoids and Alkaloids (3) Cynogenic glycosides and Flavonoids (4) Terpenes and Cynogenic […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Kaurenoic Acid as a Plant Secondary Metabolite and Its Biological Role
35. Which of the following is a plant secondary metabolite? (1) Kaurenoic acid (2) Abietic acid (3) Proline (4) Pyruvate Correct answer: (1) Kaurenoic acid Explanation: Kaurenoic acid is a diterpenoid, […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Glucosinolate Chemical Structure
Which one of the following secondary metabolites is characterized by the presence of a central carbon atom that is bound by a sulphur to a glycone group, and N by […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Glucosinolates as Signature Secondary Metabolites of the Brassicales Order
33.Which of the following class of plant secondary metabolite is present specially in the order Brassicales? (1) Glucosinolates (2) Alkaloids (3) Phenolics (4) Terpenoids Correct answer: (1) Glucosinolates Explanation: Glucosinolates are […]
CSIR NET Life Science Previous Year Questions and Solution Plant Physiology
Alkaloid Classification
32. Which one of the following compound is NOT a part of alkaloid class of secondary metabolites? (1) Lignin (2) lndole (3)Tropane (4) Pyrroidine Correct answer: (1) Lignin Lignin is a […]
