WorksheetsDigestive System Recap
Total questions: 24
Worksheet time: 12mins
Which of the following is an example of a protein?
fatty acid
enzyme
sodium
glucose
Which macromolecule is the primary source of energy for the body?
Proteins
Carbohydrates
Lipids
Nucleic acids
What is the main function of lipids in the body?
Provide quick energy
Store long-term energy
Build muscle tissue
Transport oxygen
Which organ is responsible for absorbing most of the nutrients from food?
Stomach
Small intestine
Large intestine
Esophagus
What is the correct sequence of food traveling through the digestive system?
Mouth → Stomach → Esophagus → Small intestine → Large intestine
Mouth → Esophagus → Stomach → Small intestine → Large intestine
Mouth → Esophagus → Small intestine → Stomach → Large intestine
Mouth → Stomach → Esophagus → Large intestine → Small intestine
Which organ produces bile to help break down fats?
Pancreas
Gallbladder
Liver
Stomach
Which process involves the breakdown of food into smaller molecules?
Ingestion
Digestion
Absorption
Elimination
Where does the majority of nutrient absorption occur?
Stomach
Small intestine
Large intestine
Esophagus
What is the process of removing undigested waste from the body called?
Ingestion
Assimilation
Elimination
Absorption
Chewing food in the mouth is an example of:
Chemical digestion
Mechanical digestion
Absorption
Assimilation
Which of the following is an example of chemical digestion?
Chewing food
Stomach acid breaking down proteins
Peristalsis moving food through the esophagus
Bile emulsifying fats
What is the role of enzymes in digestion?
To physically break down food into smaller pieces
To speed up chemical reactions that break down macromolecules
To absorb nutrients into the bloodstream
To store bile for fat digestion
Which enzyme is produced in the mouth and helps break down carbohydrates?
Pepsin
Amylase
Lipase
Trypsin
Where is pepsin, an enzyme that breaks down proteins, produced?
Mouth
Stomach
Small intestine
Pancreas
Which enzyme is responsible for breaking down fats into fatty acids and glycerol?
Amylase
Pepsin
Lipase
Trypsin
What is the role of the gallbladder in digestion?
Produce bile
Store bile
Produce pancreatic juices
Absorb nutrients
Which organ produces insulin and digestive enzymes like amylase and lipase?
Liver
Gallbladder
Pancreas
Stomach
What is the function of bile in digestion?
Break down proteins
Emulsify fats
Break down carbohydrates
Absorb nutrients
What is the gut microbiome?
A type of enzyme that breaks down food
A collection of microorganisms living in the digestive tract
A part of the small intestine
A hormone that regulates digestion
How do humans benefit from the gut microbiome?
It helps break down food and produce vitamins
It produces bile for fat digestion
It regulates blood sugar levels
It absorbs nutrients from food
What is the term for the rhythmic contractions that move food through the digestive tract?
Peristalsis
Chyme
Villi
Feces
What is the name of the partially digested food that leaves the stomach?
Bile
Chyme
Feces
Enzymes
Which structure in the small intestine increases surface area for nutrient absorption?
Villi
Pancreas
Gallbladder
Esophagus
What is the final waste product of digestion called?
Chyme
Bile
Feces
Enzymes
