Advertisements
Advertisements
प्रश्न
Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.
Harmones ‘obey’ the commands like ‘enough, slow down or ‘two little, speed up’
पर्याय
True
False
Advertisements
उत्तर
True
Reason- Hormones are poured directly into blood the blood stream and control physiological processes by chemical means. Their action depends on the feedback mechanism.
संबंधित प्रश्न
Define Endocrine gland
| Hormones | Target gland |
| Corticotrophin (ACTH) | ______ |
Mention three important differences between the action of hormones and that of nerves in the regulatory mechanism of our body.
Organs like the stomach and intestine are also endocrine glands. Why?
Differentiate: Acromegaly and Myxedema.
Given alongside are the diagrammatic sketches of some endocrine glands. Observe the figures and answer the following questions:
(i) Label the parts numbered 1 to 5.
(ii) Name the hormones secreted by (2) and (5).
(iii) Which chemicals in our body are greatly affected by hormones?
(iv) What is the chemical nature of hormones?
(v) Name the elements related to the functioning of hormones secreted by the structure (2) and (5).
The sketch below shows a certain condition in an individual:
(i) Name the condition.
(ii) What is the underlying cause of this condition?
(iii) Name two other conditions that could have resulted due to a similar cause.
(iv) Which hormone is required for iodine synthesis?
(v) Where is the thyroid gland located?
(vi) The hormone secreted by the thyroid gland is controlled from which hormone?
Iodised salt is essential to prevent ______.
Name the layers of adrenal cortex and mention their secretions.
Predict the effects of removal of pancreas from the human body.
