CBSE Class 11 Biology Excretory Products And Their Elimination Worksheet Set A

Excretory Products And Their Elimination MCQ Questions with Answers Class 11 Biology

Question- The condition of accumulation of urea in blood is termed as

(1) Uremia

(2) Diuresis

(3) Glycosuria

(4) Haematuria

Answer (1)

Question- The excretory structure of Amphioxus (Cephalochordate) is

(1) Flame cell/Solenocyte

(2) Coxal gland

(3) Malpighian tubules

(4) Green gland

Answer (1)

Question-The most toxic nitrogenous waste excreted by many bony fishes, aquatic amphibians and aquatic insects is

(1) Ammonia

(2) Urea

(3) Uric acid

(4) Both (2) & (3)

Answer (1)
 

Question- Nitrogenous metabolic wastes in our body are the products of

(1) Carbohydrates

(2) Proteins

(3) Lipids

(4) Vitamins

Answer (2)

Question- Nearly all of the essential nutrients, and 70–80% of electrolytes and water are reabsorbed in the

(1) PCT

(2) Henle’s loop

(3) DCT

(4) Collecting duct

Answer (1)

8. Malpighian body or renal corpuscle is

(1) Glomerulus along with collecting duct

(2) Glomerulus along with DCT

(3) Glomerulus along with Bowman’s capsule

(4) Glomerulus along with Loop of Henle

Answer (3)

Question- Which is the largest digestive gland of our body?

(1) Liver

(2) Lung

(3) Brain

(4) Stomach

Answer (1)


Question- Least toxic nitrogenous waste among the following is

(1) Urea

(2) Uric acid

(3) Ammonia

(4) More than one option is correct

Answer (2)
 

Question- Podocyte cells occur in

(1) Glomerular capillaries

(2) Neck region of nephron

(3) Inner wall of Bowman’s capsule

(4) Outer wall of Bowman’s capsule

Answer (3)

Question- Loop of Henle is found in

(1) Green gland

(2) Malpighian tubule

(3) Neuron

(4) Nephron

Answer (4)

Question- Vasa recta is

(1) L-shaped

(2) U-shaped

(3) S-shaped

(4) V-shaped

Answer (2)

Question- Which of the following is also known as antidiuretic hormone?

(1) Oxytocin

(2) Vasopressin

(3) Adrenaline

(4) Aldosterone

Answer (2)

Question- We can produce a concentrated urine. This is facilitated by a special mechanism. Identify the mechanism.

(1) Reabsorption from PCT

(2) Reabsorption from collecting duct

(3) Reabsorption/secretion in DCT

(4) Counter current mechanism in Henle’s loop/vasa recta

Answer (4)

Question- Human beings are

(1) Uricotelic

(2) Ureotelic

(3) Ammonotelic

(4) Both (2) & (3)

Answer (2)

Question- In crustaceans, the excretory functions are performed by

(1) Antennal glands

(2) Green glands

(3) Both (1) & (2)

(4) Malpighian tubules

Answer (3)

Question- Uric acid is an excretory product of

(a) Cockroach (b) Sparrow (c) Terrestrial reptiles (d) Man

(1) (a) & (d)

(2) (b) & (d)

(3) (a), (b) & (c)

(4) (a), (c) & (d)

Answer (3)
 

Question-All are performed in a nephron, except

(1) Filtration

(2) Secretion

(3) Urea synthesis

(4) Reabsorption

Answer (3)

Question-The cause of glomerular filtration is

(1) Osmosis

(2) GHP

(3) Hemodialysis

(4) Acidic pH

Answer (2)

Question- An adult human excretes, on an average ______ litres of urine per day.

(1) 1 to 1.5

(2) 2 to 2.5

(3) 2.5 to 3

(4) 3 to 3.5

Answer (1)

Question- As compared to plasma, all are the constituents of dialysis fluid, except

(1) NaCl

(2) Glucose

(3) Amino acid

(4) Urea

Answer (4)

Question- The part through which arteries and veins enter or leave the kidney is called

(1) Hilus

(2) Renal papilla

(3) Major calyces

(4) Minor calyces

Answer (1)

Question- Which one is the vasoconstrictor?

(1) ANF

(2) Renin

(3) Angiotensin-II

(4) Histamine

Answer (3)
 

Question- Glucose and amino acids in the filtrate are reabsorbed by tubular epithelial cells through

(1) Active transport

(2) Passive transport

(3) Both (1) & (2)

(4) Osmosis

Answer (1)

Question- On an average, how much urea is excreted out per day by an adult human?

(1) 25–30 g

(2) 15–20 g

(3) 35–40 g

(4) 40–45 g

Answer (1)

Question- Which of the following component of blood does not enter into the nephron?

(1) Water

(2) Glucose

(3) Urea

(4) Plasma proteins

Answer (4)

Question- Which is the first step of urine formation?

(1) Ultrafiltration

(2) Tubular secretion

(3) Selective secretion

(4) Tubular reabsorption

Answer (1)

More Question

1. What is column of Bertini?

2. What is ultrafiltration?

3. How does ascending limb of Henle’s loop differ from the descending limb in its permeability to water and sodium chloride?

4. What is malpighian corpuscle? Draw a labeled diagram.

5. Write the role of liver in excretion.

6. What is meant by (1) ketonuria (2) glycosuria (3) uremia?

7. Match the following.

8. Land animals are ureotelic or uricotelic, but not ammonotelic. Give reason.

9. It has been estimated that the kidneys filter 125ml of fluid per minute; but we excrete only 1.5litre of urine in a day. Explain.

10. Why are patients of kidney disorders advised to consume less protein?