Welcome to the Quiz!
This quiz contains 14 questions from a mix of 1 subtopics.
Where does nutrient-rich blood from the small intestine first enter the liver?
hepatic artery
hepatic vein
bile duct
hepatic portal vein
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What structure carries deoxygenated blood away from the liver?
bile duct
hepatic vein
hepatic artery
hepatic portal vein
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How are organic acids produced from excess amino acids stored?
as urea
in the gallbladder
as adipose tissue
as glycogen
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Which enzyme in hepatocytes helps break down alcohol?
lipase
amylase
alcohol dehydrogenase
catalase
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The artery supplies the liver with oxygenated blood, while the vein carries away deoxygenated blood.
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Which cells line the sinusoids of the liver and carry out most functions?
sinusoid cells
kupffer cells
hepatocytes
hepatic cells
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Which molecule is converted into urea in the liver to remove excess nitrogen?
ethanal
ammonia
glycogen
glucose
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What is the process called where the liver breaks down toxic substances?
respiration
digestion
detoxification
denitrification
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Which of the following is a role of the liver in the body?
storing metabolic waste
removing waste carbon dioxide
producing urine
converting ammonia to urea
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What is the term for the process of removing metabolic waste from cells?
excretion
homeostasis
detoxification
respiration
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Why is the conversion of ammonia to urea important?
urea is less soluble and less toxic than ammonia
ammonia aids in cell signaling
urea is more soluble than ammonia
ammonia is less harmful than urea
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Which of the following best describes the role of the liver in detoxification?
the liver breaks down toxic substances into less harmful compounds
the liver stores harmful substances like alcohol and medications
the liver converts medications and hormones into urea
the liver generates waste carbon dioxide during respiration
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What is the first step in the liver's breakdown of amino acids?
removal of waste by the kidneys
removal of amine groups via deamination
conversion of ammonia to urea
excretion of carbon dioxide
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Where is urea transported to after it enters the blood plasma from the liver?
the liver
the gallbladder
the lungs
the kidneys
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