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Questions and Answers
What is the purpose of a seed?
What is the purpose of a seed?
- To attract pollinators
- To protect the plant from predators
- To provide food for the plant
- To insure the continuation and distribution of the plant (correct)
Where are ovules arranged in the ovaries?
Where are ovules arranged in the ovaries?
- On the chalaza
- On placentae (correct)
- On the micropyle
- On the integuments
What is the function of the micropyle in an ovule?
What is the function of the micropyle in an ovule?
- Gas exchange
- Minute pore through which pollination occurs (correct)
- Protection from predators
- Nutrient absorption
What is the kernel of a seed defined as?
What is the kernel of a seed defined as?
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How are seeds classified according to their kernel?
How are seeds classified according to their kernel?
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Study Notes
Seed Structure and Function
- The primary purpose of a seed is to allow a plant to reproduce and disperse its offspring.
- Ovules are arranged in the ovaries of a plant, which are the female reproductive structures.
- The micropyle is a small opening in an ovule that allows pollen to enter and fertilize the egg cell.
- The kernel of a seed is defined as the embryo and its surrounding tissues, which are protected by the seed coat.
- Seeds are classified according to their kernel into three main categories: albuminous (presence of endosperm), exalbuminous (absence of endosperm), and naked (seed coat directly surrounds the embryo).
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