Food Chemistry & Biochemistry MCQs (Quiz 11)

1. The primary structure of a protein is determined by its _______

 Disulfide bridges

 Three-dimensional folding

 Amino acid sequence

 Hydrogen bonding pattern

2. A key difference between Vitamin E and Vitamin C, in the context of their antioxidant function, is that _______

 Vitamin C regenerates oxidized Vitamin E, allowing it to continue protecting cell membranes

 Both vitamins function as co-enzymes in the same metabolic pathway

 Vitamin E is water-soluble, while Vitamin C is fat-soluble

 Vitamin E acts primarily in the bloodstream, while Vitamin C acts inside mitochondria

3. Maltose, the main fermentable sugar in beer brewing, is produced from starch by the action of which enzyme __________

 Glucoamylase

 α-amylase

 Lactase

 β-amylase

4. Coenzymes are commonly derived from ___________

 Lipids

 Minerals

 Pigments

 Vitamins

5. Which of the following nutrients is primarily used by cells for the extraction of energy through metabolic pathways such as glycolysis and cellular respiration?

 Glucose

 Vitamin K

 Calcium

 Iron

6. The alcohol produced during beer fermentation is mainly _______

 Butanol

 Methanol

 Propanol

 Ethanol

7. Fermentation in beer production, which converts sugars into ethanol and carbon dioxide, is primarily carried out by _______

 Molds

 Algae

 Yeasts

 Bacteria

8. Lipase enzymes catalyze the breakdown of _______

 Polysaccharides

 Nucleic acids

 Proteins

 Triglycerides

9. Freezing preserves food mainly by _______

 Slowing microbial and enzymatic activity

 Enhancing microbial growth

 Increasing enzyme activity

 Promoting oxidation

10. Gastric juice in the stomach is highly acidic mainly due to the presence of _______

 Bile salts

 Sodium bicarbonate

 Hydrochloric acid

 Pepsin

 Loading …

Question 1 of 10

_________________________________

[Explore all MCQs]
[Horticulture MCQs] [Introduction to Pomology MCQs] [Introduction to Olericulture MCQs] [Plant Physiology MCQs] [Plant Nutrition MCQs] [Crop and Environment MCQs] [Botany MCQs ]
[Soil Science MCQs] [Soil Physical Properties MCQs] [Soil Chemical Properties MCQs]
[Agronomy MCQs] [Cell Structure & Cell Organelles MCQs] [Gene Expression MCQs]