The definition of hormone describes them as having all the following features except:
1. non-nutrient chemicals
2. intra-cellular messengers
3. produced in trace amounts
4. act on distant target organ
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Assertion (A): | Apart from the organised endocrine glands, hormones are secreted by other parts of the human body as well. |
Reason (R): | Hormone is any non-nutrient chemical which acts as intercellular messenger and is produced in trace amounts. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
I: | The glands located in the region A play a very important role in calcium homeostasis. |
II: | The gland B increases in size from puberty to adulthood and then decreases in size in old age. |
III: | C is both an endocrine and an exocrine gland. |
IV: | D is kidney and does not produce any hormone. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
A | B | |
1. | Anterior pituitary | Posterior pituitary |
2. | Superior colliculus | Inferior colliculus |
3. | Pineal gland | Pituitary gland |
4. | Broca’s area | Sella turcica |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
I: | A are hypothalamic neurons that produce ADH and Oxytocin |
II: | B is the infundibulum or pituitary stalk |
III: | C is a portal vein |
IV: | D is pars distalis |
V | E is pars nervosa |
1. | I and II only | 2. | I, II and III only |
3. | I and III only | 4. | II and III only |
Statement I: | Hormones act on all the cells in the human body. |
Statement II: | Hormones are intercellular chemical messengers transported by blood throughout the body. |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.