Question

On the basis of ripening behaviour, choose the non climacteric fruits
(A). Litchi
(B). Grape
(C). Jackfruit
(D). Pineapple
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (B) and (C) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

A simple rule of thumb for exams: If a fruit needs to be bought when it's already ripe and won't get better on your kitchen counter (like berries, citrus, grapes), it's likely non-climacteric. If you can buy it green and it will ripen (like bananas, avocados, mangoes), it's climacteric.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Fruits are classified based on their ripening behavior into two categories:
\[\begin{array}{rl} \bullet & \text{Climacteric fruits: These fruits can continue to ripen after being harvested. They exhibit a characteristic burst in respiration and ethylene (a ripening hormone) production. Examples include bananas, mangoes, and apples.} \\ \bullet & \text{Non-climacteric fruits: These fruits do not ripen further once they are harvested. They must be picked when ripe. They do not show a peak in respiration or ethylene production. Examples include citrus fruits, grapes, and strawberries. } \\ \end{array}\] The question asks to identify the non-climacteric fruits from the given list.

Step 2: Detailed Explanation:
Let's classify each fruit:
\[\begin{array}{rl} \bullet & \text{(A) Litchi: Litchi is a classic example of a non-climacteric fruit. It does not ripen after being picked and its quality deteriorates quickly. } \\ \bullet & \text{(B) Grape: Grapes are also non-climacteric. They must be harvested when fully ripe as they will not become sweeter after picking. } \\ \bullet & \text{(C) Jackfruit: Jackfruit is a climacteric fruit. It continues to ripen and soften after being harvested. } \\ \bullet & \text{(D) Pineapple: Pineapple is a non-climacteric fruit. Although its outer color may change slightly, it does not become sweeter or ripen internally after being harvested. } \\ \end{array}\] Based on this classification, Litchi, Grape, and Pineapple are non-climacteric fruits.

Step 3: Final Answer:
The non-climacteric fruits in the list are (A) Litchi, (B) Grape, and (D) Pineapple. This corresponds to the option (A), (B) and (D) only.