This set of Vegetables Processing Multiple Choice Questions & Answers (MCQs) focuses on “Primary Metabolites (Carbohydrates, Amino Acids, Vitamins, Organic Acids and Fatty Acids)”.
1. What are examples of primary metabolites?
a) Ethanol, lactic acid
b) Ethanol, amino acids
c) Lactic acid and amino acids
d) Ethanol, lactic acid, and amino acids
View Answer
Explanation: Some examples of primary metabolites are ethanol, lactic acid and amino acids. In higher plants, these metabolites are concentrated in seeds and storage organs. These are required for functional development.
2. What are primary plant metabolites?
a) Directly involved in growth and development
b) Indirectly involved in growth and development
c) Does not involved in growth and development
d) Voluntary involvement in growth and development
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Explanation: A primary metabolite is a type of metabolite which is directly involved in growth. It alos helps in development and reproduction in the plant. The plant growth regulators are classified as primary and secondary metabolites due to their role in evolution and growth.
3. Are proteins primary metabolites?
a) True
b) False
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Explanation: the primary metabolites can be defined as the disintegration compounds formed during the metabolic process. Examples of primary metabolites are proteins, esters, polysaccharides and nucleic acids. The nucleosides, amino acids and the enzyme are the most common primary metabolites used for growth.
4. What is the first primary metabolite produced during photosynthesis?
a) Carbohydrate
b) Protein
c) Lipid
d) Vitamin D
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Explanation: Carbohydrates are the first products produced as a result of photosynthesis. It provides an important food reserve. It is synthesized by plants using sunlight to convert carbon dioxide and water to glucose and oxygen.
5. What is the basic function of lipids?
a) Body development
b) Stores energy
c) Converts carbohydrates into simpler sugars
d) Converts proteins into amino acids
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Explanation: Lipids are the compounds which can have plant or animal origin. They are hydrophobic substances. They are soluble in non-polar organic solvents. Their basic purpose is storage of energy. They are use in medication and food industry.
6. Which of the hormones is used for cell elongation?
a) Auxins
b) Gibberellins
c) Cytokinins
d) Both cytokinins and gibberellins
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Explanation: Auxins are indole‐3‐acetic acid. It involves in plant elongation and plant growth. Auxins promote initiation and development of roots. It activates cellular elongation by increasing flexibility of cell wall in the plant cells.
7. Which of the following hormones is used for cell division?
a) Auxins
b) Gibberellins
c) Cytokinins
d) Both auxins and gibberellins
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Explanation: Cytokinins hormones stimulate cell division in plants. These are produced in growing areas, like meristems at tip of the shoot. The cytokinins have a molecular assembly which is similar to that of adenine.
8. What is the role of abscisic acid?
a) Seed development
b) Stores energy
c) Converts carbohydrates into simpler sugars
d) Converts proteins into amino acids
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Explanation: Abscisic acid is a sesquiterpene. It has a crucial role in development of seeds and maturation. It also produces compatible osmolytes to tolerate stresses due to environmental factors. It also aids in reproductive growth and promoting seed dormancy.
9. Primary metabolites do not show any pharmacological actions or effects.
a) True
b) False
View Answer
Explanation: A primary metabolite is directly involved in development, and reproduction. It is also referred to as a central metabolite. The primary metabolites do not display any pharmacological activities or effects.
10. What is the role of hormones in plants?
a) Development
b) Stores energy
c) Converts carbohydrates into simpler sugars
d) Converts proteins into amino acids
View Answer
Explanation: Plant hormones are the chemicals. The plants use it for communication, harmonization, and development. These are natural substances which controls many aspects of plant growth. Auxins, cytokines are the examples of hormones in plants.
Sanfoundry Global Education & Learning Series – Vegetables Processing.
To practice all areas of Vegetables Processing, here is complete set of 1000+ Multiple Choice Questions and Answers.
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