3.3.5 Blood Transport of Nutrients FMQuiz Homework Solution
Q. True or False. Urea is formed in the kidneys.
A. FLASE
Q. Name a process by which soluble foods are absorbed into the blood from the small intestine.
A. Diffusion or Passive transport
Q. What type of food is mainly absorbed into the lacteal of the villi?
A. Fatty acids and glycerol
Q. State a role that the liver plays in the digestive process.
A. Produces bile; Emulsification; Produces NaHCO3; Neutralizes acid
Q. Name a substance transported to the liver by the blood in the hepatic portal vein.
A. Glucose, amino acids, minerals, vitamins, etc.
Q. Name the blood vessel that brings oxygenated blood to the liver.
A. Hepatic artery
Q. Where is bile stored after it has been made in the liver?
A. Gall bladder
Q. Give one role that the bile salts play in the digestive process.
A. Emulsify fats or Neutralise acidic chyme
Q. Give two functions of the liver, other than the manufacture of bile.
A. Storage of minerals & vitamins; Deamination; Heat generation; Detoxification
Q. The hepatic portal vein carries blood from the alimentary canal to the …
A. Liver
Q. Where in the digestive system are the products of digestion absorbed?
A. Small intestine
Q. Name the blood vessel that joins the small intestine) to the liver.
A. Hepatic portal vein
Q. TRUE or FALSE. The liver produces bile.
A. TRUE
Q. Give one digestive function of the pancreas.
A. Produces enzymes trypsin, amylase, lipase
Q. The stomach secretes hydrochloric acid onto the ingested food. Give one function of this acid.
A. Provides medium for pepsin
Q. The colon contains many symbiotic bacteria – mostly ‘good’ bacteria. State two benefits we get from these bacteria.
A. Synthesise vitamins; Out-compete pathogens; Complement immune system; Break down fibre
Q. Where does the partially digested food go when it leaves the stomach?
A. Duodenum
Q. What is the pH of the stomach contents?
A. 1 – 2
Q. What is meant by peristalsis?
A. Muscular contractions in the walls of the alimentary canal to move food
Q. What is meant by egestion?
A. Getting rid of undigested food waste
Q. Proteins are digested to simpler substances. What are these simpler substances called?
A. Amino acids
Q. Where in the human alimentary canal is most water absorbed?
A. Colon or Large intestine
Q. What is meant by a ‘balanced’ diet?
A. One which contains all the food types in the correct proportions
Q. State one digestive function of the pancreas.
A. Produces enzymes or Neutralises chyme
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