Which of the following plant hormones would most likely be found in high concentrations in a mature slightly over-ripe fruit: 1) Cytokinin and ethylene 2) ABA and ethylene 3) GA and ABA 4) Auxin and cytokinin
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The answer is 2. ABA and ethylene
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The plant hormones that would most likely be found in high concentrations in a mature slightly over-ripe fruit are cytokinin and ethylene.
- The transition of a juvenile plant to a mature plant occurs through the growth, reproduction, and senescence of its fundamental organs.
- Cytokinin is a growth hormone that is involved in cell division.
- This hormone is produced by the cells that are constantly dividing that is the meristematic cells.
- This hormone is mostly found in higher concentrations in fruits, flowers, and seeds.
- Ethylene is responsible for the ripening of fruits
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Cytokinin and ethylene
Explanation:
- Cytokinin and ethylene are plant hormones would most likely be found in higher concentrations in a mature slightly over-ripe fruit
Cytokinin
- The plant growth hormone cytokinin promotes cell division. This hormone is produced in plant sections that are constantly involved in the cell division process.
- The cytokinin are present in higher concentrations or proportions in the flowers, fruits, and seeds.
- They can also be present in the shoot and root apical areas.
Ethylene
- Ethylene is a gaseous plant growth regulator. It is produced in huge quantities by senescent tissues and ripening fruits.
- When unripe bananas were placed near ripe bananas, they ripened faster. The chemical stimulating ripening was ethylene.
- Ethylene is effective in fruit ripening because it increases the rate of respiration throughout the ripening process.
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