Function of the PCT

Q. Removal of proximal convoluted tubule from the nephron will result in:

1. No urine formation
2. More diluted urine
3. More concentrated urine
4. No change in quality and quantity of urine

Q.

How does the body maintain fluid balance?

Q. The maximum amount of electrolytes and water (70-80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron

1. Descending limb of loop of Henle
2. Proximal convoluted tubule
3. Ascending limb of loop of Henle
4. Distal convoluted tubule

Q.

The net pressure gradient that causes fluid to filter out of the glomeruli into the capsule is

1. 20 mm Hg

2. 75 mm Hg

3. 30 mm Hg

4. 5O mm Hg

Q.

If the liver is removed, which component of the blood will increase?

1. Ammonia

2. Protein

3. Uric Acid

4. Urea

Q. Reabsorption of useful substances from glomerular filtrate occurs in:

1. Collecting tube
2. Loop of Henle
3. Proximal convoluted tubule
4. Distal convoluted tubule

Q. Maximum reabsorption of useful substances from glomerular filtrate occurs in:

1. Collecting duct
2. Loop of Henle
3. Proximal convoluted tubule
4. Distal convoluted tubule

Q. Nearly 70–80 percent of electrolytes and water from the glomerular filtrate is reabsorbed in

1. proximal convoluted tubule
2. Bowman’s capsule
3. distal convoluted tubule
4. both a and c

Q. b anomer of glucose is more stable. Why?

Q.

Select the incorrect statement regarding the mechanism of urine formation in man.

1. The glomerular filtration rate is about 125ml per minute

2. The glomerular capillary blood pressure causes filtration of blood through 3 layers

3. Aldosterone induces greater re-absorption of Sodium

4. The counter current system contributes in diluting the urine

Q.

Which is said to be the major site of selective secretion and reabsorption?

Q. In each cycle , the sodium-potassium pumps transfer

1. two potassium ions in & two sodium ions out
2. one sodium ion out & one potassium ion in
3. three sodium ions out & two potassium ions in
4. three sodium ions in & two potassium ions out

Q. $HC{O}_3^{-}$ absorption takes place in

1. distal convoluted tubule and collecting duct
2. proximal convoluted tubule and Henle’s loop
3. Henle’s loop and collecting duct
4. proximal convoluted tubule and distal convoluted tubule

Q. The renal fluid isotonic to the cortical fluid and blood is found in

1. The Proximal Convoluted Tubule (PCT) and Distal Convoluted Tubule (DCT)
2. The ascending limb and descending limb
3. The collecting duct and ascending limb
4. The distal convoluted tubule and ascending limb

Q.

Glomerular capsule and Convoluted tubules always lie within the _______.

1. Renal pelvis

2. Renal medulla

3. Renal cortex

4. None of these

Q.

The first renal tubule that continues from renal corpuscle is:

1. DCT

2. Collecting ducts

3. Malpighian body

4. PCT

Q. From which part of the renal tubule are 60-65% of water and virtually all nutrients, electrolytes, and plasma proteins reabsorbed into the blood?

1. Distal convoluted tubule
2. proximal convoluted tubule
3. Descending limb of nephron loop
4. Ascending limb of nephron loop

Q. Removal of proximal convoluted tubule (PTC) from the nephron will result in:

1. No urine formation
2. More electrolytes and water in urine
3. No change in quality and quantity of urine
4. Less electrolytes and water in urine

Q. The Na+/K+ ATPase pump helps in the reabsorption of

1. Sodium
2. All of the above
3. Glucose
4. Amino acids

Q. In healthy person, diameter of afferent and efferent arteriole………..

1. Are equal
2. Are more and less respectively
3. Are less and more respectively
4. Depending on working capacity of arteriole

Q.

Where does the selective reabosorption of glomerular filtrate take place?

Q. Nearly 70–80 percent of electrolytes and water from the glomerular filtrate is reabsorbed in

1. proximal convoluted tubule
2. both a and c
3. Bowman’s capsule
4. distal convoluted tubule

Q.

What is the process of fluid distribution throughout the body?

Q. At which nephron site is the tubular fluid glucose concentration highest?

1. A
2. B
3. C
4. E

Q.

Maximum reabsorption of Na+ and K+ ions occur in

1. Loop of Henle

2. Bowman’s capsule

3. Distal convoluted tubule

4. Proximal convoluted tubule

Q.

A 22-year old woman runs a 10-kilometer race on a hot day and becomes dehydrated. Assuming that her ADH levels are high and that kidneys are functioning normally, in which part of the renal tubule is most water reabsorbed?

1. Proximal tubule
2. Loop of Henle
3. Distal tubule
4. Collecting duct

Q. The renal fluid isotonic to the cortical fluid and blood is found in

1. The collecting duct and ascending limb
2. The distal convoluted tubule and ascending limb
3. The Proximal Convoluted Tubule (PCT) and Distal Convoluted Tubule (DCT)
4. The ascending limb and descending limb

Q. Given below are five groups of terms. In each group arrange and rewrite the terms in the correct order so as to be in a logical sequence.
For example : Implantation, Parturition, Ovulation, Gestation, Fertilization.
Answer : Ovulation, Fertilization, Implantation, Gestation, Parturition.
(i) Spongy cells, Upper epidermis, Stoma, Palisade tissue, Substomatal space.
(ii) Spinal cord, Motor neuron, Receptor, Effector, Sensory neuron.
(iii) Endodermis, Cortex, Soil water, Xylem, Root hair.
(iv) Metaphase, Telophase, Prophase, Anaphase, Cytokinesis.
(v) Intestine, Liver, Intestinal artery, Hepatic Vein, Hepatic Portal Vein.

Q. Reabsorption of useful substances from glomerular filtrate occurs in:

1. Collecting tube
2. Loop of Henle
3. Proximal convoluted tubule
4. Distal convoluted tubule

Q. Reabsorption of chloride ions and water from glomerular filtrate in proximal convoluted tubule occur respectively by

1. Active transport, Passive transport
2. Passive transport, Osmosis
3. Osmosis, Passive transport
4. Brownian movement, Diffusion