Excretory Products and their Elimination Test 53

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Excretory Products and their Elimination Test 53

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Question 1
1 / -0

In principle, longest Henle's loop should be found in the nephrons of desert dwelling mammal feeding mainly on?

A
Succulent cactus

B
Fleshy fruits

C
Leathery leaves

D
Seeds

Solution

Answer :
i) Cactus is a succulent desert plant.
ii) Cacti are able to conserve water, which is why they do well in very dry environments.|
iii) Succulent cactus store water and food in stems or roots.
So correct answer is option A.Succulent cactus.
Question 2
1 / -0

Which of the following are absent in both serum and glomerular filtrate?
I. Ions
II. RBC
III. Fibrinogen
IV.Albumin

A
I and II

B
II and III

C
III and IV

D
II, III and IV

Solution

Serum does not include formed elements or blood cells and also the clotting factors or proteins as serum is the after clot component of the blood, however, it does contain other proteins and ions. Similarly, glomerular filtate contains ions and a negligent amount of albumin
So, the correct answer is 'II and III'
Question 3
1 / -0

Mark the correct option that show highest to lowest $$\%$$ resorption of substances from nephron

A
Water $$>$$ Sodium $$>$$ Urea

B
Glucose $$>$$ Water $$>$$ Urea

C
Water $$>$$ Urea $$>$$ Glucose

D
Urea $$>$$ Glucose $$>$$ Sodium

Solution

The correct answer is A
Maximum reabsorption occurs in the proximal convoluted tubule where almost 99% of the water is reabsorbed and and sodium and little urea is also reabsorbed , highest rebsorbed is water and least is urea.
Question 4
1 / -0

Which of the following are about $$90\%$$ absorbed in the nephron?

A
Glucose and amino acids - Active process

B
Glucose and amino acids - Passive process

C
$$Cl^-$$, $$NH_3$$, $$K^+$$ - Passive process

D
$$Cl^-$$, $$NH_3$$, $$K^+$$ - Active process
Question 5
1 / -0

The given diagram represents a signal nephron from a mammalian kidney. Identify which of the numbered regions is
(i)The site of ultrafiltration
(ii) Particularly sensitive to ADH
(iii) The main site for the reabsorption of glucose and amino acid
(iv) Largely responsible for the adjustment of blood pH

A
I-A, II-B, III-D, IV-E

B
I-A,II-B,III-C, IV-E

C
I-A, II-B,III-C,IV-D

D
I-A, II-E, III-C, IV-D

Solution

The correct answer is D
A-Bowman's capsule is the site of ultrafiltration.
E-Collecting duct of the nephron is sensitive to ADH, large amount of water could be reabsorbed from this region to produce concentrated urine.
C- Proximal convoluted tubule, glucose, amino acids , fatty acids are completely reabsorbed by active transport in PCT.
D-Distal convoluted tubule, reabsorption of sodium , Bicarbonate takes place which adjusts blood PH
Question 6
1 / -0

Podocytes are the cells, present in?

A
Cortex of nephron

B
Inner wall of Bowman's capsule

C
Outer wall of Bowman's capsule

D
Wall of glomerular capillaries
Solution
Solution:
Correct answer is option A.
Explanation for correct answer:
1. Podocytes are cells in the Bowman's capsule in the kidneys that wrap around capillaries of the glomerulus.
2. Podocytes play an important role in glomerular function.
3. Together with endothelial cells of the glomerular capillary loop and the glomerular basement membrane they form a filtration barrier.
Question 7
1 / -0

What is the function of Bowman's capsule and Glomerulus?

A
Filtration of blood

B
Reabsorption of ions from blood

C
Reabsorption of hormones from blood

D
Reabsorption of water from blood
Solution
- Bowman's capsule is a cup-like sack at the beginning of the tubular component of a nephron in the mammalian kidney that performs the first step in the filtration of blood to form urine.
- The glomerulus is a tuft of small blood vessels called capillaries located within Bowman's capsule within the kidney. It helps in the filtration of blood.
So, the correct answer is 'Filtration of blood'.
Question 8
1 / -0

Glomerulus is present in which of the following?

A
Bowman's capsule

B
Renal tubules

C
Loop of Henle

D
None of these

Solution

Glomerulus is present in the Bowman's capsule. It is a network of capillaries that filters blood entering into it using hydrostatic pressure. The filtrate obtained is called ultrafiltrate that moves into the PCT through the Bowman's capsule. Bowman's capsule and glomerulus together forms the Malphigian body.
So, the correct answer is 'Bowman's capsule'
Question 9
1 / -0

In comparision to animals, the rate of excretion in plants is : -

A
More

B
less

C
equal

D
absent
Question 10
1 / -0

Which of the following is an incorrect statement about excretion?

A
Excretion takes place in plants.

B
Excretion takes place both in plants and animals.

C
Excretion is the process of getting rid of excess water only.

D
Secretion is one method of excretion.

Solution

Excretion is the process of eliminating nitrogenous wastes, toxins, excess water soluble vitamins from the body, dissolved in water, which may be in excess quantity.
So, the correct answer is 'Excretion is the process of getting rid of excess water only.'

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Excretory Products and their Elimination Test 53

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Excretory Products and their Elimination Test 53

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Question 1

Succulent cactus

Fleshy fruits

Leathery leaves

Seeds

Solution

Question 2

I and II

II and III

III and IV

II, III and IV

Solution

Question 3

Water $$>$$ Sodium $$>$$ Urea

Glucose $$>$$ Water $$>$$ Urea

Water $$>$$ Urea $$>$$ Glucose

Urea $$>$$ Glucose $$>$$ Sodium

Solution

Question 4

Glucose and amino acids - Active process

Glucose and amino acids - Passive process

$$Cl^-$$, $$NH_3$$, $$K^+$$ - Passive process

$$Cl^-$$, $$NH_3$$, $$K^+$$ - Active process

Question 5

I-A, II-B, III-D, IV-E

I-A,II-B,III-C, IV-E

I-A, II-B,III-C,IV-D

I-A, II-E, III-C, IV-D

Solution

Question 6

Cortex of nephron

Inner wall of Bowman's capsule

Outer wall of Bowman's capsule

Wall of glomerular capillaries

Solution

Question 7

Filtration of blood

Reabsorption of ions from blood

Reabsorption of hormones from blood

Reabsorption of water from blood

Solution

Question 8

Bowman's capsule

Renal tubules

Loop of Henle

None of these

Solution

Question 9

More

less

equal

absent

Question 10

Excretion takes place in plants.

Excretion takes place both in plants and animals.

Excretion is the process of getting rid of excess water only.

Secretion is one method of excretion.

Solution

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