Give reason to justify the following statements: -
(a) Cells are small in size.
(b) Ray florets of sunflower are neuters.
(c) Most flowers have nectaries.
(d) A cluster of eggs cannot be considered as a tissue.
(e) A plant cell contains a large vacuole.
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Explanation:
Give reason to justify the following statements: -
(a) Cells are small in size.
(b) Ray florets of sunflower are neuters.
(c) Most flowers have nectaries.
(d) A cluster of eggs cannot be considered as a tissue.
(e) A plant cell contains a large vacuole.
Verified answer
Answer:
a) Smaller cells have a better ratio which allows more molecules and ions to be manipulated across the cell membrane per unit of cytoplasmic volume. Cells are so small because they have to be ready to get the nutrients in and therefore the waste out quickly.
b) The ray florets of sunflower are known as neuters because it consists neither male or female parts in the flower
c) Flowers produce nectar as a reward for pollination, the process of transferring pollen from flower to flower. Many flowers need pollen to reproduce. However, because plants are immobile they need help with pollen transfer.
d) A tissue is a group of similar cells from the same origin that together carry out a specific function. An egg is a zygote or a cell but a cluster of eggs cannot be considered as a tissue as it does not form an organ like a tissue.
e) Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.
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