HFA Unit Test Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Stomach
Answer:
- expandable sack made up of three different layers of muscle where bolus is
churned (2m-3h)
bolus is mixed with HCl and becomes chyme
Q: Small intestine
Answer:
- chyme passes through pyloric sphincter to enter s.i.
6 metres long
3 sections: duodenum, jejunum, ileum
,HFA Unit Test Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Duodenum
Answer:
- receives about 12 g of chyme each time the pyloric sphincter opens
approx. 25cm long; shape of a horseshoe
chyme is diluted with bile salts (from the gallbladder) and pancreatic juices (from
pancreas) ---
> accessory organs in digestion
Q: Bile
Answer:
produced in the liver and stored in the gallbladder
emulsifies fats
allows fats to mix into watery digestive juices and allows lipase to digest the fats
efficiently
fat takes 3-5 hours to be digested
, HFA Unit Test Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Pancreatic Juices
Answer:
- contains sodium bicarbonate to neutralise the hydrochloric acid mixed
into the chyme from the stomach
Q: Villi
Answer:
finger-like structures in the small intestines which increase surface area available for
absorption
Q: Substances absorbed into the small intestine
Answer:
water, alcohol, sugars, minerals, vitamins,
peptides and amino acids, fatty acids, glycerol
2026 Update
Q: Stomach
Answer:
- expandable sack made up of three different layers of muscle where bolus is
churned (2m-3h)
bolus is mixed with HCl and becomes chyme
Q: Small intestine
Answer:
- chyme passes through pyloric sphincter to enter s.i.
6 metres long
3 sections: duodenum, jejunum, ileum
,HFA Unit Test Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Duodenum
Answer:
- receives about 12 g of chyme each time the pyloric sphincter opens
approx. 25cm long; shape of a horseshoe
chyme is diluted with bile salts (from the gallbladder) and pancreatic juices (from
pancreas) ---
> accessory organs in digestion
Q: Bile
Answer:
produced in the liver and stored in the gallbladder
emulsifies fats
allows fats to mix into watery digestive juices and allows lipase to digest the fats
efficiently
fat takes 3-5 hours to be digested
, HFA Unit Test Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Pancreatic Juices
Answer:
- contains sodium bicarbonate to neutralise the hydrochloric acid mixed
into the chyme from the stomach
Q: Villi
Answer:
finger-like structures in the small intestines which increase surface area available for
absorption
Q: Substances absorbed into the small intestine
Answer:
water, alcohol, sugars, minerals, vitamins,
peptides and amino acids, fatty acids, glycerol
