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Reduced second cotyledon in some grasses...

Reduced second cotyledon in some grasses is known as

A

Nucellus

B

Epiblast

C

Scutellum

D

Epicotyl

Text Solution

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The correct Answer is:
To answer the question regarding the reduced second cotyledon in some grasses, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Cotyledons**: Cotyledons are the first leaves that appear from a seed during germination. In flowering plants, they can be classified as either monocotyledons (monocots) or dicotyledons (dicots). Monocots typically have one cotyledon, while dicots have two. 2. **Identifying the Structure in Monocots**: In monocots, such as grasses, the main cotyledon is referred to as the scutellum. This is the primary structure that provides nutrients to the developing plant. 3. **Recognizing the Reduced Cotyledon**: In some grasses, there is a second cotyledon that is either very small or not fully developed. This reduced cotyledon is known as the epiblast. 4. **Evaluating the Options**: The question provides multiple-choice options: - A) Nucillus - B) Epiblast - C) Scutellum - D) Epicotyle 5. **Analyzing Each Option**: - **Nucillus**: Incorrect, as it refers to the embryo within the ovule, not a cotyledon. - **Epiblast**: Correct, as it is the term used for the reduced second cotyledon in some grasses. - **Scutellum**: Incorrect, as this is the name for the main cotyledon in monocots. - **Epicotyle**: Incorrect, as it refers to the part of the stem above the cotyledons, not a cotyledon itself. 6. **Conclusion**: The correct answer to the question is **Epiblast**. ### Final Answer: The reduced second cotyledon in some grasses is known as **Epiblast**.
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