Excretion

Question 1

Define excretion.

Answer 1

The process of removing waste products from cell metabolism from the body.

Question 2

What are the three main waste products that are removed from the body?

Answer 2

• Carbon dioxide
• Urea
• Bile

Question 3

What are the three blood vessels in the liver?

Answer 3

• Hepatic artery: supplies oxygenated, nutrient-poor blood.
• Hepatic Portal Vein: supplies deoxygenated, nutrient-rich blood.
• Hepatic Vein: carries deoxygenated blood out of the liver.

Question 4

Which process in the liver combines ammonia with carbon dioxide to produce urea?

Answer 4

The ornithine cycle

Question 5

How does the liver help to control blood glucose levels?

Answer 5

It converts glucose into glycogen for storage.

Question 6

Define deanimation.

Answer 6

The process in the liver which removes the amine group from amino acids when breaking down excess proteins and produces ammonia and keto acids.

Question 7

The breakdown of alcohol is an example of which important function of the liver?

Answer 7

Detoxification

Question 8

what does the hepatic artery carry?

Answer 8

oxygenated, nutrient poor blood

Question 9

what does the hepatic portal vein carry?

Answer 9

deoxygenated, nutrient rich blood

Question 10

What does the hepatic vein carry?

Answer 10

deoxygenated blood out of the liver.

Question 11

how does the liver control blood glucose levels?

Answer 11

it converts glucose to glycogen for storage.

Question 12

which process in the liver removes the amine group from the amino acid when breaking down excess proteins?

Answer 12

deamination

Question 13

which process in the liver combines carbon dioxide and ammonia to produce urea?

Answer 13

the ornithine cycle

Question 14

what process is the breakdown of alcohol in the liver called?

Answer 14

detoxification