nln pax anatomy and physiology questions
and answers 2026\2027 A+ Grade
mechanical digestion
- correct answer Part of digestion that uses movement and muscles to break down food into smaller
pieces
digestion
- correct answer breaking down nutrients into small, soluble molecules that can be absorbed into the
blood
chemical digestion
- correct answer the digestion process in which enzymes are used to break foods into their smaller
chemical buiding blocks
occurs via hydrolysis
hydrolysis
- correct answer A chemical process that lyses, or splits, molecules by the addition of water; an essential
process in digestion.
enzymes
- correct answer molecules, usually proteins or nucleic acids, that act as catalysts in biochemical
reactions
used in chemical reactions
humans digestion tube extends from
- correct answer mouth to anus
called alimentary canal
,anus
- correct answer A muscular opening at the end of the rectum through which waste material is
eliminated from the body
alimentary canal
- correct answer Also known as the gastrointestinal (GI) tract of the digestive tract, the alimentary canal
is the long muscular "tube" that includes the mouth esophagus, somatch, small intesitne, and large
intestine.
carries out stages of digestive process (mechanical and chemical digestion and absorb ion)
accessory organs
- correct answer In the GI tract, organs that play a role in digestion but not directly part of the
alimentary canal.
These include the liver, the gallbladder, the pancreas
what takes place in the mouth?
- correct answer mechanical digestion
saliva is released from salivary glands to breakdown carbs
salivary glands
- correct answer three pairs of exocrine glands in the mouth that secrete saliva
saliva
- correct answer contain amylase
amylase
- correct answer enzyme in saliva that breaks the chemical bonds in starches
pharynx
- correct answer muscular tube at the end of the gastrovascular cavity, or throat, that connects the
mouth with the rest of the digestive tract and serves as a passageway for air and food
, esophagus
- correct answer muscular tube that moves food from the pharynx to the stomach
epiglottis
- correct answer The flap of tissue that seals off the windpipe and prevents food from entering.
what takes place in the stomach?
- correct answer peristalsis
gastric juices help breakdown proteins
chyme is created
peristalsis
- correct answer involuntary waves of muscle contraction that keep food moving along in one direction
through the digestive system
gastric juice
- correct answer chemically breaksdown proteins
acidic (pH of 2)
mucus
- correct answer protects stomach wall from acidity of gastric juices
protease
- correct answer Enzyme that breaks down proteins
chyme
- correct answer a semiliquid mass of partially digested food that passes from the stomach into the small
intestine
small intestine
- correct answer digestive organ in which most chemical digestion takes place
majority of digestion and absorption occur here!!
and answers 2026\2027 A+ Grade
mechanical digestion
- correct answer Part of digestion that uses movement and muscles to break down food into smaller
pieces
digestion
- correct answer breaking down nutrients into small, soluble molecules that can be absorbed into the
blood
chemical digestion
- correct answer the digestion process in which enzymes are used to break foods into their smaller
chemical buiding blocks
occurs via hydrolysis
hydrolysis
- correct answer A chemical process that lyses, or splits, molecules by the addition of water; an essential
process in digestion.
enzymes
- correct answer molecules, usually proteins or nucleic acids, that act as catalysts in biochemical
reactions
used in chemical reactions
humans digestion tube extends from
- correct answer mouth to anus
called alimentary canal
,anus
- correct answer A muscular opening at the end of the rectum through which waste material is
eliminated from the body
alimentary canal
- correct answer Also known as the gastrointestinal (GI) tract of the digestive tract, the alimentary canal
is the long muscular "tube" that includes the mouth esophagus, somatch, small intesitne, and large
intestine.
carries out stages of digestive process (mechanical and chemical digestion and absorb ion)
accessory organs
- correct answer In the GI tract, organs that play a role in digestion but not directly part of the
alimentary canal.
These include the liver, the gallbladder, the pancreas
what takes place in the mouth?
- correct answer mechanical digestion
saliva is released from salivary glands to breakdown carbs
salivary glands
- correct answer three pairs of exocrine glands in the mouth that secrete saliva
saliva
- correct answer contain amylase
amylase
- correct answer enzyme in saliva that breaks the chemical bonds in starches
pharynx
- correct answer muscular tube at the end of the gastrovascular cavity, or throat, that connects the
mouth with the rest of the digestive tract and serves as a passageway for air and food
, esophagus
- correct answer muscular tube that moves food from the pharynx to the stomach
epiglottis
- correct answer The flap of tissue that seals off the windpipe and prevents food from entering.
what takes place in the stomach?
- correct answer peristalsis
gastric juices help breakdown proteins
chyme is created
peristalsis
- correct answer involuntary waves of muscle contraction that keep food moving along in one direction
through the digestive system
gastric juice
- correct answer chemically breaksdown proteins
acidic (pH of 2)
mucus
- correct answer protects stomach wall from acidity of gastric juices
protease
- correct answer Enzyme that breaks down proteins
chyme
- correct answer a semiliquid mass of partially digested food that passes from the stomach into the small
intestine
small intestine
- correct answer digestive organ in which most chemical digestion takes place
majority of digestion and absorption occur here!!
