STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
MORPHOLOGY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one cotyledon
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two cotyledons
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many cotyledons
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no cotyledon
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Detailed explanation-1: -All sunflowers (Helanthus annus) are dicots, they are dicotyledonous, meaning they have two cotyledons (baby leaves) when their seed germinates. Monocots have only one baby leaf when they emerge. Grasses are a good example of a monocot. So, the correct answer is ‘Two cotyledons’.
Detailed explanation-2: -Angiosperms (flowering plants) whose embryos have a single cotyledon are grouped as monocots, or monocotyledonous plants; most embryos with two cotyledons are grouped as eudicots, or eudicotyledonous plants.
Detailed explanation-3: -Plants with seeds having two cotyledons are called monocots.
Detailed explanation-4: -Sunflower is a dicot plant. Hence the anatomy of dicot root can be studied in sunflower plants.
Detailed explanation-5: -Either the nutrients surround the embryo in a tissue known as endosperm, as in a corn seed, or the nutrients are stored in leaf-like structures known as a cotyledons which are part of the embryo, as in bean seeds.