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WorksheetsDigestive System Review
Total questions: 25
Worksheet time: 14mins
Recall which part of the digestive system is indicated by the red arrow in the picture below.
Liver
Rectal Cavity
Small Intestine
Large Intestine
Identify what part of the digestive system is described in the following statement below.
"Stores food, and mixes it with gastric acid."
Oesophagus
Stomach
Rectal Cavity
Oral Cavity
Determine what is the labelled structure and explain its function.
Recall what mechanical digestion is.
Where you replace part of your digestive tract with complex machinery
The act of drinking special chemicals after a meal to aid your digestion
The process of physically breaking up food into smaller pieces
The process of converting large complex food molecules into simpler molecules
Cheese fondue is a popular dinner dish in some countries. In the small intestine, the fat from the cheese is converted into simpler fatty acids and glycerol.
Identify which type of digestion this is.
Mechanical
Chemical
Recall what type of molecule enzymes are.
Proteins
Carbohydrates
Nucleic Acids
Lipids
Recall what a biological catalyst is.
A substance that increases activation energy in cells
A protein that can slow a reaction
A substance that speeds up reactions in living things
A chemical that can react with a substrate
Recall why we need to break down macromolecules into monomers during digestion.
To allow the molecules to be absorbed
To release energy by respiration
To help the molecules move down the gut
To product heat to keep us warm
Recall what type of enzyme breaks down starch into sugars
Lipase
Protease
Amylase
Nuclease
Recall where in the body amylase digests carbohydrates.
Select ALL correct options
Small Intestine
Stomach
Mouth
Pancreas
Liver
Recall what kind of molecule starch is
Select ALL correct options
Lipid
Protein
Polysaccharide
Monosaccaride
Carbohydrate
Recall another name for digestion of macromolecules into smaller molecules.
Assimilation
Condensation
Hydrolysis
Absorption
Recall what lipids are.
Select ALL correct options
Fats
Carbohydrates
Sugars
Oils
Recall what molecules are formed when a lipid is hydrolysed.
Glycerol
Starch
Protein
Fatty Acids
Maltose
Explain why different digestive enzymes have different optimum pH values.
What is the primary function of the digestive system
Respiration
transportation of blood
breaking down food for absorption
regulation of body temperature
Where does digestion of carbohydrates begin
mouth
small intestine
stomach
large intestine
Which organ stores bile and releases it into the small intestine to aid in fat digestion?
liver
gall bladder
stomach
pancreas
What is the role of the enzyme amylase in the digestive process?
Digesting proteins
Digesting fats
Digesting carbohydrates
absorbing nutrients
Which part of the digestive system is responsible for absorbing most of the nutrients from digested food?
small intestine
stomach
large intestine
oesophagus
What is the name of the wave-like muscular contractions that propel food through the esophagus and along the digestive tract?
Peristalsis
digestive waves
muscles contractions
The small finger-like projections in the small intestine that increase the surface area for nutrient absorption are called:
(a)
What is the main function of the large intestine (colon)?
to absorb nutrients
to digest carbohydrates
to absorb water and electrolytes
to produce bile
Which digestive organ secretes insulin to regulate blood sugar levels?
stomach
liver
gall bladder
pancreas
Match the following to their broken down forms
proteins
amino acids
carbohydrates
sacharides
fats
lipids
