WorksheetsJC HE Digestion
Total questions: 18
Worksheet time: 9mins
Which statement best defines digestion for the human body?
Breaking food from large particles into smaller particles
Storing food in the stomach for long periods
Moving food quickly through the oesophagus
Turning food into energy instantly
Which action is an example of physical digestion?
Pancreatic enzymes splitting proteins
Teeth grinding food into smaller pieces
Saliva enzymes changing starch molecules
Bile emulsifying fats into tiny droplets
Which option describes chemical digestion?
Chewing food with the teeth
Using enzymes to break down food molecules
Swallowing food through the oesophagus
Churning food by the stomach muscles
Which enzymes are linked with carbohydrate breakdown in early digestion?
Protease in mouth
Maltase in the intestine
Lipase in stomach
Amylase in saliva
Where does food go after leaving the mouth during digestion?
Directly to the liver
Into the oesophagus
Straight to the pancreas
Into the large intestine
Which organ mainly absorbs nutrients after chemical digestion is completed?
Stomach
Pancreas
Small intestine
Large intestine
Which statement about the mouth and teeth is correct?
Teeth perform chemical reactions on food
Teeth push enzymes into the stomach
Teeth store food before swallowing
Teeth physically break food into smaller pieces
Which pair correctly matches organ to its general function in digestion?
Pancreas—releases digestive enzymes
Liver—produces bile for fat digestion
Large intestine—absorbs most nutrients
Stomach—mechanically churns and begins chemical breakdown
What is the best description of peristalsis in the oesophagus?
Storage of food before absorption
Chemical digestion using strong acids
Involuntary waves pushing food along
Voluntary muscle squeezing food forward
Which pair correctly matches stomach components with their roles?
Pepsin digests fats; acid absorbs glucose
Acid breaks protein; pepsin kills bacteria
Pepsin breaks protein; acid kills bacteria
Villi churn food; pepsin absorbs water
Where does most nutrient absorption into the bloodstream occur?
In the mouth during chewing
In the large intestine by mucus
In the stomach after churning
In the small intestine by villi
What do villi in the small intestine mainly do?
Store extra enzymes for later use
Increase surface area to absorb nutrients
Produce acid to kill harmful bacteria
Push food by strong muscular contractions
Which breakdown is correctly matched to its end products?
Fats into glycerol and fatty acids
Proteins into amino acids
Water into fibre
Probiotics into stomach acid
Carbohydrates into glucose
Which action best helps prevent constipation?
Eating less fibre every day
Taking antibiotics frequently
Drinking plenty of fluids
Avoiding all fruits and vegetables
Why is dietary fibre important for digestion?
It kills all bacteria in the intestines
It breaks proteins into amino acids
It helps move faeces through the system
It adds vitamins to stomach acid
What is the main health benefit of probiotics?
They provide good bacteria for gut health
They remove all water from faeces
They convert fibre into fatty acids
They stop peristalsis during digestion
Which statement about the large intestine is accurate?
Peristalsis does not occur here
Proteins are chemically broken here
Water is reabsorbed back into the body
Most glucose absorption happens here
Which set of habits supports a healthy digestive system?
Eat fibre-rich foods regularly
Skip vegetables consistently
Drink adequate water daily
Use probiotics in the diet
Avoid any physical exercise
