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Which of the following statements are in...

Which of the following statements are incorrect?
I. In all multipurpose stem modifications underground stem stores food materials
II. In the stemtuber of potato adventitious buds participate in vegetative reproduction
III. Bulb of onion contains adventitious roots, scale leaves, tunic, scape and fleshy discoid stem
IV. The corm of Zaminkand grows vertically downwards in the soil

A

I, II, III, IV

B

II, III, IV

C

I, II

D

I, II, IV only

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are incorrect, we will analyze each statement one by one: ### Step-by-Step Solution: 1. **Statement I**: "In all multipurpose stem modifications, underground stem stores food materials." - **Analysis**: While some underground stem modifications do store food (like tubers and corms), not all multipurpose stem modifications are for food storage. Some may serve other functions such as vegetative propagation or photosynthesis. Therefore, this statement is incorrect. 2. **Statement II**: "In the stem tuber of potato, adventitious buds participate in vegetative reproduction." - **Analysis**: The potato tuber does have buds (commonly referred to as "eyes") that can give rise to new plants. However, these buds are actually axillary buds, not adventitious buds. Since the statement incorrectly identifies the type of buds, this statement is also incorrect. 3. **Statement III**: "Bulb of onion contains adventitious roots, scale leaves, tunic, scape, and fleshy discoid stem." - **Analysis**: This statement is correct. The onion bulb is indeed a modified stem that contains all these structures. The fleshy leaves store food, and the other components are characteristic of onion bulbs. 4. **Statement IV**: "The corm of Zaminkand grows vertically downwards in the soil." - **Analysis**: This statement is also correct. The corm is a type of underground stem that grows vertically downwards to store food and nutrients. ### Conclusion: The incorrect statements are: - **I**: Incorrect because not all underground stem modifications store food. - **II**: Incorrect because the buds are axillary, not adventitious. Thus, the answer is that statements I and II are incorrect.
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