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Excretion_gr7_Quiz

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

The basic functional unit of human kidney is

a)

henle's loop

b)

nephron

c)

nephridia

2.

Lungs are important organs for excretion of

a)

carbon dioxide

b)

ammonia

c)

water

3.

Filtration of excretory wastes from the blood occurs in

a)

ureters

b)

collecting tubule

c)

nephrons

4.

kidneys, ureters, urinary bladder and urethra

a)

excretory system

b)

digestive system

c)

respiratory system

5.

The main nitrogen-containing waste excreted in urine is

a)

ammonia

b)

urea

c)

nucleotides

6.

Urea is produced as an excretory substance in human body in

a)

urinary bladder

b)

liver

c)

kidney

7.

About 90% of kidney stones can pass out through urinary system by drinking _

a)

juice

b)

water

c)

sugar drinks

8.
What is the middle layer of the kidneys called?
a)
medulla
b)
pelvis
c)
cortex
d)
glomerulus
9.
What is the outermost layer of the kidneys?
a)
glomerulus
b)
medulla
c)
pelvis
d)
cortex
10.

The cluster of capillaries within a nephron.

a)

glomerulus

b)

alveoli

c)

aorta

d)

vein

11.

The organ whose excretory functions include detoxification of the blood and formation of urea.

a)

liver

b)

kidney

c)

heart

d)

gall bladder

12.

The waste products produced by cellular life processes the most important of which are carbon dioxide, water, urea and mineral salts.

a)

ATP

b)

metabolic wastes

c)

feces

d)

enzymes

13.

A nitrogen waste resulting from the breakdown of the amino acids produced during protein digestion.

a)

carbon dioxide

b)

bile

c)

urea

d)

water

14.
Place the following events in sequence:
A)  Urine passes through the ureters
B)  Urea enters the kidneys
C)  Urine enters the urethra
a)
B, A, C
b)
C, B, A
c)
B, C, A
d)
A, C, B
15.

Which substance is NOT found in the liquid in the highlighted parts of a healthy person?

a)

Glucose

b)

Salt

c)

Water

d)

Urea

16.

The area influenced by hormones in order to regulate water balance in the body.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

17.

Choose the substances (more than 1) that will be found in larger quantities the renal artery.

a)

glucose

b)

urea

c)

water

d)

oxygen

e)

carbon dioxide

18.

Choose the substances (more than 1) that will be found in larger quantities the renal vein.

a)

glucose

b)

urea

c)

water

d)

oxygen

e)

carbon dioxide

19.

Which of the following is not part of excretion?

a)

remove toxic materials

b)

remove undigested food

c)

remove waste product of metabolism

d)

remove substances in excess of requirement

20.

Urea is carried from the _______ to the _______.

a)

stomach, liver

b)

liver, kidneys

c)

kidneys, stomach

d)

kidneys, liver