Excretory Products and their Elimination Test 64

Question 1
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The reabsorption of water in the urinary tract takes place with the help of loop of Henle. How is this structure modified in fresh water aquatic species as compared to terrestrial one?

A
Absent

B
Longer

C
Shorter

D
Withered

E
Thinner

Question 2
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Which is the part of the nephron that exists in outer zone of kidney?

A
Loop of the henle

B
PCT

C
DCT

D
Bowman's capsule

Question 3

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Read the following passage and answer the following questions.
Dialysis tubing is a semipermeable membrane. It allows small molecules, such as water, to pass through easily, while larger molecules, such as sucrose, are restricted. Movement of molecules across the tubing is due to concentration gradients. In an experiment designed to study osmosis, several pieces of dialysis tubing were filled with sucrose solutions of varying concentration and placed in beakers containing distilled water. The rate and direction of water movement was determined by weighing the bags before and after placing them in the distilled water. The data are recorded below.Table 1

Tube number	Tube contents (beaker contents)	Mass(g) 0 minutes	Mass (g) 15 minutes	Mass(g) 30 minutes	Mass (g) 45 minutes	Mass (g) 60 minutes
1	Distilled water (distilled water)	22.3 g	22.4 g	22.2 g	22.3 g	22.3 g
2	10% sucrose (distilled water)	24.8 g	25.3 g	25.7 g	26.4 g	26.9 g
3	40% sucrose (distilled water)	25.1 g	26.3 g	27.5 g	28.9 g	29.6 g
4	Distilled water (40% sucrose)	22.7 g	21.3 g	20.5 g	19.8 g	18.7 g

Which of the following graphs best illustrates the relationship between Tube 2 and Tube 3?

Question 4
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In prokaryotes, the glycocalyx when it is thick is called

A
Mesosome

B
Cell wall

C
Slime layer

D
Capsule.

Question 5
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Match the following. Identify the correct match between Set-I and Set-II.
Set-I Set-II
A) Flame cells I) Arthropods
B) Coiled tubules II) Platyhelminths
C) Malpighian tubules III) Crustcean
D) Green glands IV) Annelids

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

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

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

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

Question 6
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Which one is not a gland?

A
Thyroid

B
Pituitary

C
Pancreas

D
Kidney

Question 7
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Medulla of the kidney is composed of.

A
Les than $$8$$ pyramids

B
Only one pyramid

C
$$8$$ to $$18$$ pyramids

D
More than $$20$$ pyramids

Question 8
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Number of uriniferous tubules in the two mammalian kidney are.

A
Nearly $$2$$ millions

B
More than $$3$$ millions

C
Less than $$1$$ million

D
More than $$1$$ million

Question 9
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If Henles loop were absent from mammalian nephron which of the following is to be expected

A
There will be no urine formation

B
There will be hardly any change in the quality and quantity of urine formed

C
The urine will be more concentrated

D
The urine will be more dilute