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SSC MTS 2022 PYQ — Question 50

SSC MTS - 26 July 2022 - Shift 3 • General Awareness • Q50

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The angiosperms are divided into ______ groups on the basis of the number of cotyledons present in the seed.

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Correct answer: A

Explanation

The correct answer is option 1 i.e. Two

Angiosperms are divided into two categories based on the number of cotyledons in a seed. If the seed has one cotyledon they are called monocots and if the seed has two cotyledons they are called dicots.

  1. All plants do not have cotyledons. Angiosperms, or the flowering plants, are the only group of plants that have cotyledons.
  2. Cotyledons provide nutrients to the embryo as it develops,until the plant is established and is able to produce its own sugars via photosynthesis. After germination, the cotyledon will be the first part of the plant to emerge from the seed.
  3. The word ''cotyledon'' comes from the Latin word for ''seed leaf''. This provides insight into the function of this structure since cotyledons are formed within the seed and are the first leaves that a plant will form.
  4. The number of cotyledons in the embryos of seeds of gymnosperms is highly variable, ranging from 8 to 20 or more.