What Triggers Renin

Q.

How does ADH contribute to the formation of concentrated urine?

Q. Which of the following hormone acts upon the renal tubule and blood capillaries?

1. Vasopressin
2. Glucocorticoids
3. Glucagon
4. Aldosterone

Q.

Does Vasopressin dilate or constrict?

Q. Human body senses the amount of body fluid and salt in the body with the help of

1. mechanoreceptors
2. photoreceptors
3. chemoreceptors
4. osmoreceptors

Q. The posterior pituitary :

1. Produces oxytocin
2. Is under the control of hypothalamic releasing neurohormone
3. Secretes trophic hormones
4. Release neurohormones

Q. Dialysing unit (artificial kidney) contains a fluid which is almost same as plasma except that it has

1. High uric acid
2. No urea
   
3. High glucose
   
4. High urea
   

Q. Atrial natriuretic hormone / factor (ANF) secreted by atrial wall of our heart has exactly the opposite hormone secreted by zona glomerula -

1. ADH
2. Aldosterone
3. Androgen
4. Calcitonin

Q. Short / Long answer type questions.
What are two ways in which angiotensin II can increase blood pressure and what are its target tissues in these cases?

Q.

Does Vasopressin lower $BP$?

Q. Give reasons:
(i) Urine is thicker in summer than in winter.

Q. As compared to the monsoons and winter a very small quantity of urine is produced in the summer season. Why is it so?

Q. Name a test for the presence of sugar in urine.

Q. Match the source gland with respective hormone as well as the function correctly.

1. $\begin{array}{cccc}& \text{Source gland}& \text{hormone}& \text{Function}\\ & \text{Anterior pituitary}& \text{Oxytocin}& \text{Contraction of uterus muscles during chil}\text{birth}\end{array}$
2. $\begin{array}{cccc}& \text{Source gland}& \text{hormone}& \text{Function}\\ & \text{Posterior pituitary}& \text{Vasopressin}& \text{Stimulates reabsorption of water in the}\text{distal tubules in the nephron}\end{array}$
3. $\begin{array}{cccc}& \text{Source gland}& \text{hormone}& \text{Function}\\ & \text{Corpus luteum}& \text{Estrogen}& \text{Supports pregnancy}\end{array}$
4. $\begin{array}{cccc}& \text{Source gland}& \text{hormone}& \text{Function}\\ & \text{Thyroid}& \text{Thyroxine}& \text{Regulates blood calcium level}\end{array}$

Q. Human body senses the amount of body fluid and salt in the body with the help of

1. mechanoreceptors
2. photoreceptors
3. chemoreceptors
4. osmoreceptors

Q. Which is not a zymogen

1. Pepsinogen
2. Trypsinogen
3. Angiotensin II
4. Procollagenase

Q.

Which of the following statement(s) is/are true?

1. Urine is hypertonic in distal convoluted tubule

2. When the urine passes into collecting tubule, it becomes hypotonic.

3. Urine becomes more and more hypotonic as it passes through Henles loop

4. Both (a) and (c)

Q. Kindly elaborate GLUT-4.

Q.

1. blue and green
2. blue and red
3. red and green
4. red and far red

Q. Which of the following statements is incorrect?

1. ADH helps in water elimination making urine hypotonic.
2. Protein free fluid is filtered from blood plasma into the Bowman's capsule.
3. Henle's loop plays an important role in concentrating the urine.
4. Glucose is actively reabsorbed in the proximal convoluted tubule.