Excretory Products and their Elimination Test 36

Result

Excretory Products and their Elimination Test 36

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Select the group of animals adapted to ammonotelism, guanotelism, and ureotelism respectively.

A
Tadpole larva of Frog, Spider, Pigeon

B
Scorpion, Turtle, Labeo

C
Catla, Penguin, Cat

D
Cobra, Cockroach, Bombay Duck

Solution

1) Ammonotelism is the excreation of ammonia as nitrogenous waste. For example, Catla.
2) Guanotelism is the excretion of guanine as nitrogenous waste. For example, Penguin.
3) Ureotelism is the excretion of urea as nitrogenous waste. For example, Cat.
So, the correct answer is 'Catla, Penguin, Cat'.
Question 2
1 / -0

Blood leaving liver and moving to heart will have more concentration of

A
Bile

B
Glycogen

C
Amino acids

D
Urea.

Solution

D. Urea
Reason: In case of animals, ammonia (which is constantly being produced as an end product of protein metabolism) is detoxified in the liver, to form urea with the help of ornithine cycle. So the deoxygenated blood leaving the liver and moving to heart will have more concentration of urea present in it. So, option D is correct.
Question 3
1 / -0

Mechanism of uric acid excretion in a nephron is

A
Osmosis

B
Diffusion

C
Ultrafiltration

D
Secretion

Solution

Uric acid in the blood is filtered (ultrafiltration) from the glomeruli of the nephrons in the kidneys. Though filtration is almost 100% only 10% is excreted through the urine. 90% of it is re absorbed by the various parts of the tubule. Thus, the correct option is C.
Question 4
1 / -0

Ketone bodies are byproducts in the metabolism of

A
Carbohydrate

B
Protein

C
Fat

D
All the above

Solution

Ketone bodies are byproducts in the metabolism of fat. During starvation or fasting conditions the liver synthesizes glucose through a process called gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the generation of glucose from fat. During gluconeogenesis, the ketone bodies are formed as byproducts where the product is glucose.
So, the correct answer is 'Fat'.
Question 5
1 / -0

Which of the following is not a lymphoid organ

A
Spleen

B
Thymus

C
Kidney

D
Lymph nodes.

Solution

C. Kidney
EXPLANATION: Lymphoid organs are made up of lymphoid tissue. Lymphoid organ is essential for adaptive immunity. It returns lymph fluid via vessels to the cardiovascular system. Spleen is the largest lymphoid organ. Some other lymphoid organs are thymus, lymph nodes, etc.
Question 6
1 / -0

In kidney, macula densa is present in

A
Proximal convoluted tubule

B
Loop of Henle

C
Distal convoluted tubule

D
Bowman's capsule

Solution

In the kidney, macula densa is present in the distal convoluted tubule. It is a component of the juxtaglomerular apparatus. The macula densa is the thickening where the distal tubule touches the afferent arteriole of the glomerulus. In response to elevated sodium, the macula densa cells trigger contraction of the afferent arteriole, reducing the flow of blood to the glomerulus and the GFR.
So, the correct answer is 'Distal convoluted tubule'.
Question 7
1 / -0

Which determines the ability of a mammal to concentrate its urine?

A
Number of nephrons

B
Length of proximal convoluted tubules

C
Length of collecting ducts

D
Size of glomerulus

Solution

The length of collecting ducts determines the ability of a mammal to concentrate its urine. Conditional reabsorption of Na+ and water takes place in this DCT. It is also capable of reabsorption of HCO3 – and selective secretion of hydrogen and potassium ions and NH3 to maintain the pH and sodium-potassium balance in the blood.
So, the correct answer is 'Length of collecting ducts'.
Question 8
1 / -0

Which one is the diluting segments of uriniferous tubule?

A
Ascending loop of Henle

B
Descending loop of Henle

C
PCT

D
DCT

Solution

The cells of ascending limb actively reabsorb solutes from the luminal fluid and are impermeable to water. As the ions leave the lumen the concentration becomes more and more hypotonic until it reaches approximately 100-150 mOsm/L. The ascending limb is also called the diluting segment of the uriniferous tubule or nephron because of its ability to dilute the fluid in the loop from 1200 mOsm/L to 100 mOsm/L.
So, the correct answer is 'Ascending loop of Henle'.
Question 9
1 / -0

Which one of the following correctly explains the function of a specific part of the human nephron ?

A
Podocytes : create minute spaces (slit pores) for the filtration of blood into the Bowmans capsule

B
Henles loop : most reabsorption of the major substances from the glomerular filtrate

C
Distal convoluted tubule : reabsorption of $$K^+$$ ions into the surrounding blood capillaries

D
Afferent arteriole: carries the blood away from the glomerulus towards renal vein.
Solution
Correct Option: A
Experiment :
- The process of ultrafiltration happens within the nephrons of the kidneys. The method can be delineated as Blood flows through the capillary vessel that's enclosed by the Bowman's capsule.
- The hydraulic pressure forces the little molecules to go away from the capillary vessel and enter the Bowman's capsule.
- In conjunction with epithelium cells of the capillary loop and also the glomerular basement membrane, they form a filtration barrier. Hence, podocytes create tiny spores to filter the blood into Bowman's capsule.
Question 10
1 / -0

A fall in glomerular filtration rate (GFR)activates

A
Juxta glomerular cells to release renin

B
Adrenal cortex to release aldosterone

C
Adrenal medulla to release adrenaline

D
Posterior pituitary to release vasopressin

Solution

A fall in glomerular filteration rate (GFR)activates juxta glomerlular of kidney cells to release renin,which activates the renin-angiotensin -aldosterone system (RAAS),is a signaling pathway responsible for regulating the bod's blood pressure.As the blood pressure is regulated the GFR is also regulated.Correct answer is (A).

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Excretory Products and their Elimination Test 36

Result

Excretory Products and their Elimination Test 36

Score

-

Rank

-

SHARING IS CARING

Question 1

Tadpole larva of Frog, Spider, Pigeon

Scorpion, Turtle, Labeo

Catla, Penguin, Cat

Cobra, Cockroach, Bombay Duck

Solution

Question 2

Bile

Glycogen

Amino acids

Urea.

Solution

Question 3

Osmosis

Diffusion

Ultrafiltration

Secretion

Solution

Question 4

Carbohydrate

Protein

Fat

All the above

Solution

Question 5

Spleen

Thymus

Kidney

Lymph nodes.

Solution

Question 6

Proximal convoluted tubule

Loop of Henle

Distal convoluted tubule

Bowman's capsule

Solution

Question 7

Number of nephrons

Length of proximal convoluted tubules

Length of collecting ducts

Size of glomerulus

Solution

Question 8

Ascending loop of Henle

Descending loop of Henle

PCT

DCT

Solution

Question 9

Podocytes : create minute spaces (slit pores) for the filtration of blood into the Bowmans capsule

Henles loop : most reabsorption of the major substances from the glomerular filtrate

Distal convoluted tubule : reabsorption of $$K^+$$ ions into the surrounding blood capillaries

Afferent arteriole: carries the blood away from the glomerulus towards renal vein.

Solution

Question 10

Juxta glomerular cells to release renin

Adrenal cortex to release aldosterone

Adrenal medulla to release adrenaline

Posterior pituitary to release vasopressin

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.