Excretory Products and their Elimination Test 50

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Excretory Products and their Elimination Test 50

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Weekly Quiz Competition

Question 1
1 / -0

The human kidney:

A
Concentrates the urine by actively transporting water out of the filtrate.

B
Produces more dilute urine when the collecting ducts become less permeable to water.

C
Responds to anti-diuretic hormone by increasing urine output.

D
Gets rid of urine from the body by secreting it into the descending arm of the loop of Henle.

Solution

The fluid that filters through the glomerulus and Bowman's capsule (glomerular filtrate) is very similar to blood plasma without the proteins, and at this point not at all like urine. Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream.
So, the correct option is 'Concentrates the urine by actively transporting water out of the filtrate '.
Question 2
1 / -0

The plasma passing through the glomerulus loses about how much percentage of its volume as a filterate?

A
$$50 \%$$

B
$$20 \%$$

C
$$80 \%$$

D
$$40 \%$$

Solution

The Glomerulus is the capillary network of nephrons that help in the filtration of the blood. The quantity of filtrate which is formed by the glomerulus is the glomerulus filtration rate which is measured per minute. It is about 180 mL in a normal healthy person. The filtrate loss is found to be about 15 to 20 %, it is dependent upon the ratio of renal plasma flow and the glomerulus filtration rate.
So, the correct option is '20 %'.
Question 3
1 / -0

Loop of Henle is found in?

A
Green gland

B
Malpighian tubule

C
Neuron

D
Nephron

Solution

The correct answer is D.
The nephron is the microscopic basic, structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule. The renal tubule extends from the capsule. The Loop of Henle is the part of renal tubule. It is the filtering unit of the body.
Question 4
1 / -0

A transitional epithelium is found in or where would you look for pseudostratified columnar epithelium

A
Kidney

B
Ureter

C
Trachea

D
Blood vessel
Question 5
1 / -0

Consider the following parts of nephron in excretory system:-
(i) PCT
(ii) Descending limb of Henle's loop
(iii) DCT
(iv) Ascending limb of Henle's loop
(v) Collecting duct
Absorption is minimum in

A
only (ii)

B
only (v)

C
Both (i) and (ii)

D
only (iv)
Question 6
1 / -0

The Bowman's capsule and glomerulus together form the?

A
Malpighian body

B
Urinary body

C
Urinary tubule

D
Ureter

Solution

Bowman's capsule and the glomerulus together constitute the renal corpuscle. The renal corpuscle is also known as Malpighian body. Blood flows into and away from the glomerulus through tiny arteries called arterioles, which reach and leave the glomerulus through the open end of the corpuscle.

Hence, the correct answer is (A)
Question 7
1 / -0

Which of the following statements is wrong about the human excretory system?

A
Excretory system consists of one pair of bean shaped kidneys, one pair of ureter, a urinary bladder and a urethra

B
Kidneys are situated between the 12th thoracic and 3rd lumber vertebrae close to the dorsal wall in abdominal cavity

C
Right kidney is a little higher level than the left one

D
All

Solution

Due to the presence of liver in the right side of body, usually left kidney lies slightly higher than the right kidney. So, the correct option is C.
Question 8
1 / -0

Glomerular filtration rate would be decreased by:

A
an increase in renal blood flow

B
Compression of the renal capsule

C
An increase in afferent arteriolar pressure

D
Constriction of the efferent arteriole

Solution

Increased blood volume and increased blood pressure will increase GFR. Constriction in the afferent arterioles going into the glomerulus and dilation of the efferent arterioles coming out of the glomerulus will Decrease GFR. Hydrostatic pressure in the Bowman's capsule will work to Decrease GFR.
Hence, the correct answer is (C)
Question 9
1 / -0

The structural and functional unit of kidney is called?

A
Nephron

B
Nephridia

C
Ureter

D
Urethra

Solution

The correct answer is A.
The nephron is the microscopic basic, structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule. The renal tubule extends from the capsule. It is the filtering unit of the body.
Question 10
1 / -0

The opening of urinary bladder is called?

A
Uriniferous tubule

B
Nephron

C
Urethra

D
Ureter

Solution

The urethra is a long tube which connects the urinary bladder to the urinary meatus for removal of urine from the body. In males, the urethra travels through the penis and meet the urethral meatus located at the tip of the penis. In females, urethra connects to the urethral meatus above the vagina. The urethra is also known as the urinary opening. Hence the opening of the urinary bladder is the urethra.
So, the correct answer is (C)

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Excretory Products and their Elimination Test 50

Result

Excretory Products and their Elimination Test 50

Score

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Rank

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SHARING IS CARING

Question 1

Concentrates the urine by actively transporting water out of the filtrate.

Produces more dilute urine when the collecting ducts become less permeable to water.

Responds to anti-diuretic hormone by increasing urine output.

Gets rid of urine from the body by secreting it into the descending arm of the loop of Henle.

Solution

Question 2

$$50 \%$$

$$20 \%$$

$$80 \%$$

$$40 \%$$

Solution

Question 3

Green gland

Malpighian tubule

Neuron

Nephron

Solution

Question 4

Kidney

Ureter

Trachea

Blood vessel

Question 5

only (ii)

only (v)

Both (i) and (ii)

only (iv)

Question 6

Malpighian body

Urinary body

Urinary tubule

Ureter

Solution

Question 7

Excretory system consists of one pair of bean shaped kidneys, one pair of ureter, a urinary bladder and a urethra

Kidneys are situated between the 12th thoracic and 3rd lumber vertebrae close to the dorsal wall in abdominal cavity

Right kidney is a little higher level than the left one

All

Solution

Question 8

an increase in renal blood flow

Compression of the renal capsule

An increase in afferent arteriolar pressure

Constriction of the efferent arteriole

Solution

Question 9

Nephron

Nephridia

Ureter

Urethra

Solution

Question 10

Uriniferous tubule

Nephron

Urethra

Ureter

Solution

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