Class CBSE Class 12 Biology Sexual Reproduction in Flowering Plants Q #1854
KNOWLEDGE BASED
APPLY
1 Marks 2024 MCQ SINGLE
Thalamus is edible part of:
(A) Annona
(B) Apple
(C) Orange
(D) All of these
Correct Answer: B
Explanation
The edible part of apple is thalamus. In orange, it is mesocarp while in annona it is aril. Thus (b) is correct option.

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Detailed Solution

Step 1: Define False Fruits

In botany, a false fruit (or pseudocarp) is a fruit derived from parts of the flower other than the ovary, such as the thalamus or receptacle. These are common in many angiosperms.

Step 2: Analyze the Options

The thalamus is the fleshy, edible part in fruits like Apple, Pear, and Strawberry. In Annona (custard apple), the edible part is the fleshy thalamus/receptacle as well. Since both Apple and Annona are examples where the thalamus forms the edible portion, the category includes multiple items listed.

Step 3: Evaluate the Correct Choice

While Orange is a hesperidium (where the edible part is the succulent hair of the endocarp), the question asks for the edible part being the thalamus. Given the options provided in standard biology textbooks for this specific question, Annona and Apple both qualify, making the collective option the most appropriate choice in the context of the provided set.

Final Answer: D

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Pedagogical Audit
Bloom's Analysis: This is an APPLY question because the student must recall specific botanical classifications of fruits and apply that knowledge to identify the edible morphological structures.
Knowledge Dimension: FACTUAL
Justification: The question relies on the recall of specific biological terminology and classification of fruit types as defined in the NCERT curriculum.
Syllabus Audit: In the context of CBSE Class 12, this is classified as KNOWLEDGE. This question tests the student's familiarity with the chapter 'Sexual Reproduction in Flowering Plants', specifically the section on fruit development.