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KS5 C15 - Excretion & the liver

Total questions: 20

Worksheet time: 22mins

Name
Class
Date
1.

Which of the following is not a waste product of excretion

a)

Carbon Dioxide

b)

Oxygen

c)

Sweating

d)

Urea

2.

Excretion is the removal of (a)   waste from the body.

3.
What is the functional unit of the liver called?
a)
Liver lobule
b)
Acinus
c)
Liver lobe
d)
Islet of Langerhans
4.
What is the name of the cells located in the liver?
a)
hepatocytes
b)
acinar cells
c)
duct cells
d)
osteoclasts
5.
What is the name of the blood vessel located in the middle of the liver lobule?
a)
Portal venule
b)
Hepatic venule
c)
Central vein
d)
Hepatic arteriole
6.
Which of the following is NOT a function of the liver?
a)
makes bile
b)
controls blood sugar levels
c)
removes old RBC's
d)
makes insulin
7.
What is C?
a)
Liver lobe
b)
Sinusoid
c)
Bile duct
d)
Haversian canal
8.
What is F?
a)
Hepatic vein
b)
Bile duct
c)
Hepatic arteriole
d)
Portal Vein
9.
Which vessel removes deoxygenated blood from the liver 
a)
Hepatic artery
b)
Hepatic portal artery
c)
Hepatic vein
d)
Portal vein
10.
From which vessel does the liver receive nutrient rich blood from the gut
a)
Hepatic artery
b)
Hepatic portal artery
c)

Hepatic Portal vein

d)
Hepatic vein
11.

Urea is produced in the liver cells by the

a)

Calvin cycle

b)

Citrulline cycle

c)

Ornithine cycle

d)

Cori cycle

12.

The process of formation of ammonia in the liver from excess of amino acids is called

a)

Detoxification

b)

Deamination

c)

Translation

d)

Egestion

13.
How is ammonia detoxified by the liver?
a)
using ethanol dehydrogenase
b)
converted into hydrophobic substances
c)
converted into hydrophilic substances
d)
converted into urea
14.

What is B?

a)

bile duct

b)

bile calaliculi

c)

hepatic artery

d)

sinusoid

15.

What is C?

a)

hepatic vein

b)

sinusoid

c)

hepatic portal vein

d)

bile canaliculi

16.

What type of cell is a Kuppfer cell?

a)

platelet

b)

leucocyte

c)

APC

d)

macrophage

17.

What is D?

a)

heptic artery

b)

heptic vein

c)

sinusoid

d)

Kupffer cells

18.

What is E?

a)

sinasoid

b)

sinusoid

c)

sinusoed

19.

What type of reaction releases urea from arginine?

a)

dehydration

b)

reduction

c)

condensation

d)

hydrolysis

20.

The enzymes of urea synthesis are found in

a)

Nucleus

b)

Mitochondria

c)

Cytosol

d)

Both mitochondria and cytosol

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