A large proportion of oxygen is left unused in the human blood
A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2
Options
(a) acts as a reserve during muscular exercise (b) raise the […]
Human Body Fluids and Excretory Products
Choose the wrong statement about excretion
Choose the wrong statement about excretion
Options
(a) In ureotelic organisms, ammonia is not a product of metabolism (b) In mammals, some amount of urea may be retained in the kidney matrix of ureotelics […]
Which of the following causes an increase in sodium reabsorption in distal convoluted tubule?
Which of the following causes an increase in sodium reabsorption in distal convoluted tubule?
Options
(a) Increase in aldosterone levels (b) Increase in antidiuretic hormone levels (c) Decrease in aldosterone levels (d) Decrease in […]
Person with blood group AB is considered as universal recipient because he has:
Person with blood group AB is considered as universal recipient because he has:
Options
(a) both A and B antigens on RBC but no antibodies in the plasma. (b) both A and B […]
Which one of the following is correct ?
Which one of the following is correct ?
Options
(a) Serum = Blood + Fibrinogen (b) Lymph =Plasma + RBC +WBC (c) Blood = Plasma + RBC + WBC (d) Plasma =Blood – […]
Which of the following does not favour the formation of large quantities of dilute urine?
Which of the following does not favour the formation of large quantities of dilute urine?
Options
(a) Caffeine (b) Renin (c) Atrial-natriuretic factor (d) Alcohol
Correct Answer:
Renin
Explanation:
The secretion of Renin is […]
Removal of proximal convoluted tubule from the nephron will result in:
Removal of proximal convoluted tubule from the nephron will result in:
Options
(a) More concentrated urine (b) No change in quality and quantity of urine (c) No urine formation (d) More diluted urine
Human urine is usually acidic because :
Human urine is usually acidic because :
Options
(a) excreted plasmaproteins are acidic (b) potassium and sodium exchange generates acidity (c) hydrogen ions are actively secreted into the filtrate (d) the sodium transporter […]
Erythropoiesis starts in :
Erythropoiesis starts in :
Options
(a) Liver (b) Spleen (c) Red bone marrow (d) Kidney
Correct Answer:
Red bone marrow
Explanation:
Erythropoiesis is the process of formation of R.B.C. In the first month of […]
Doctors use stethoscope to hear the sounds produced during each cardiac cycle.
Doctors use stethoscope to hear the sounds produced during each cardiac cycle.The second sound is heard when:
Options
(a) Ventricular wall vibrate due to gushing in of blood from atria (b) Semilunar valves […]