1. Name any five hormones secreted by human beings with its glands and functions.
2. Name five different hormones secreted by plants with one function for each.
3. Name five different types of movements with one example for each.
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Answered by
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Human beings.
•Adrenaline-Adrenal gland- prepares body for emergency situations
•Thyroid-thyroxin- protein carb and fat metabolism
•Growth hormone- pituitary- regulates growth
•Insulin-pancreas- blood sugar level
•Testosterone-testes -development of sexual characteristics
Plant
•Auxin-cell elongation
•Gibberelin-growth of stem
•cytokinins- cell division
• abscisic acid - inhibit growth
•ethylene-ripens fruit
Movement
•phototropism- plant towards sunlight
•geotropism-root to earth
•chemotropism- pollen tube towards ovary
•thigmotropism-response to touch
• hydrotropism- root towards water
•Adrenaline-Adrenal gland- prepares body for emergency situations
•Thyroid-thyroxin- protein carb and fat metabolism
•Growth hormone- pituitary- regulates growth
•Insulin-pancreas- blood sugar level
•Testosterone-testes -development of sexual characteristics
Plant
•Auxin-cell elongation
•Gibberelin-growth of stem
•cytokinins- cell division
• abscisic acid - inhibit growth
•ethylene-ripens fruit
Movement
•phototropism- plant towards sunlight
•geotropism-root to earth
•chemotropism- pollen tube towards ovary
•thigmotropism-response to touch
• hydrotropism- root towards water
arjunb963:
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1. Five hormones that are secreted by human beings are as follows :-
(i) Growth Hormone: Secreted by pituitary gland.
Function: It promotes the growth of long bones and muscles. Excess secretion of hormones leads to gigantism, insufficient secretion leads to dwarfism.
(ii) THYROXIN: Secreted by thyroid gland.
Function: It regulates carbohydrates, proteins and fat metabolism, accelerates energy production, stimulates absorption of glucose.
(iii) INSULIN: Secreted by pancreas.
Function: It controls the rate of oxidation of glucose. If insulin is not present blood glucose level will keep rising.
(iv) ADRENALINE: Secreted by adrenal gland.
Function: It is released in times of stress and emotional disturbance.
(v) TESTOSTERONE: Secreted by testis.
Function: Helps in development of secondary sexual characters, e.g., moustache, beard, etc.
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2. Five different hormones secreted by plants are as follows :-
(i) AUXIN: They are produced at the shoot tips and help in growth of stem.
(ii) GIBBERELLINS: Helps in vegetative growth.
(iii) CYTOKININ: Promotes cell division.
(iv) ABSCISIC ACID: Inhibits growth and induces wilting of leaves.
(v) ETHYLENE: Helps in ripening of fruit.
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3. Five different types of movements are as follows :-
(i) PHOTOTROPISM: Stem tip grows in the direction of light.
(ii) GEOTROPISM: Response towards the gravity.
(iii) CHEMOTROPISM: Response due to chemicals.
(iv) THIGMOTROPISM: Response to touch on tendrils and other climbing parts are positively thigmotrophic.
(v) NASTIC MOVEMENT: It is neither towards nor away from stimulus.
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Hope my ans.'s satisfactory.
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1. Five hormones that are secreted by human beings are as follows :-
(i) Growth Hormone: Secreted by pituitary gland.
Function: It promotes the growth of long bones and muscles. Excess secretion of hormones leads to gigantism, insufficient secretion leads to dwarfism.
(ii) THYROXIN: Secreted by thyroid gland.
Function: It regulates carbohydrates, proteins and fat metabolism, accelerates energy production, stimulates absorption of glucose.
(iii) INSULIN: Secreted by pancreas.
Function: It controls the rate of oxidation of glucose. If insulin is not present blood glucose level will keep rising.
(iv) ADRENALINE: Secreted by adrenal gland.
Function: It is released in times of stress and emotional disturbance.
(v) TESTOSTERONE: Secreted by testis.
Function: Helps in development of secondary sexual characters, e.g., moustache, beard, etc.
---------------------------------------------------------
2. Five different hormones secreted by plants are as follows :-
(i) AUXIN: They are produced at the shoot tips and help in growth of stem.
(ii) GIBBERELLINS: Helps in vegetative growth.
(iii) CYTOKININ: Promotes cell division.
(iv) ABSCISIC ACID: Inhibits growth and induces wilting of leaves.
(v) ETHYLENE: Helps in ripening of fruit.
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3. Five different types of movements are as follows :-
(i) PHOTOTROPISM: Stem tip grows in the direction of light.
(ii) GEOTROPISM: Response towards the gravity.
(iii) CHEMOTROPISM: Response due to chemicals.
(iv) THIGMOTROPISM: Response to touch on tendrils and other climbing parts are positively thigmotrophic.
(v) NASTIC MOVEMENT: It is neither towards nor away from stimulus.
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Hope my ans.'s satisfactory.
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