Postharvest Technology MCQs (Set 4) Posted on August 17, 2026Author agropublishers 0 1. Non-climacteric fruits differ from climacteric fruits in that they _______________________ Do not produce any hormones Show a large respiratory peak at ripening Ripen primarily while attached to the plant and exhibit a limited response to ethylene Do not change color during ripening 2. Which postharvest system is most suitable for a remote village with unreliable electricity and high solar radiation? Conventional refrigerated warehouse Large controlled-atmosphere facility Freeze-drying plant Solar-powered cold storage 3. Which of the following fruits is classified as non-climacteric? Banana Papaya Mango Grape 4. The microbial conversion of sugars into acids, alcohols, or gases is known as _________________ Fermentation Oxidation Senescence Hydrolysis 5. The increase in fruit sweetness during ripening is primarily a result of _____________________ Increased protein breakdown Synthesis of new starch Degradation of all carbohydrates Hydrolysis of starch into sugars 6. Which statement most accurately describes the respective roles of abscisic acid (ABA) and ethylene during tomato fruit ripening? ABA levels rise before ethylene and promote ethylene biosynthesis and signaling ABA decreases while ethylene increases, with no interaction Ethylene inhibits ABA biosynthesis completely ABA and ethylene act independently with no crosstalk 7. Plant hormone ____________________ is involved in regulating ripening in both climacteric and non-climacteric fruits Gibberellin Brassinosteroid Abscisic acid Cytokinin 8. In postharvest management, controlled-atmosphere storage delays fruit ripening primarily by _________________ Exposing fruit to high light intensity Suppression of respiration and ethylene activity Increasing ethylene production Increasing temperature 9. Which climatic condition can increase the risk of postharvest pathogen development in horticultural produce? Low moisture Warm and humid conditions Dry storage Rapid cooling 10. Increased postharvest temperature generally leads to _______________________ Reduced respiration and senescence Inhibited ethylene production and senescence Increased ethylene production and accelerated ripening Prevention of water loss and weight increase Loading … Question 1 of 10
