Digestive System Quiz: Test Your Knowledge of Animal Digestion

Question 1

Which of the following is NOT a function of the digestive system?

Accepted Answer

Regulating body temperature

Answer

Breaking down food into smaller pieces

Answer

Absorbing nutrients into the bloodstream

Answer

Moving food through the body

Question 2

Which organ in the digestive system is responsible for initially breaking down food?

Accepted Answer

Stomach

Answer

Small intestine

Answer

Large intestine

Answer

Esophagus

Question 3

What enzyme in saliva begins the breakdown of carbohydrates?

Accepted Answer

Amylase

Answer

Pepsin

Answer

Lipase

Answer

Protease

Question 4

Which part of the digestive system is primarily responsible for nutrient absorption?

Accepted Answer

Small intestine

Answer

Stomach

Answer

Large intestine

Answer

Esophagus

Question 5

What is the main function of villi in the small intestine?

Accepted Answer

Increasing surface area for absorption

Answer

Producing digestive enzymes

Answer

Storing undigested food

Answer

Transporting food through the intestine

Question 6

Which organ produces bile?

Accepted Answer

Liver

Answer

Pancreas

Answer

Gallbladder

Answer

Small intestine

Question 7

What is the muscular tube that connects the mouth to the stomach called?

Accepted Answer

Esophagus

Answer

Trachea

Answer

Duodenum

Answer

Jejunum

Question 8

Which of the following is a function of the large intestine?

Accepted Answer

Absorbing water

Answer

Digesting proteins

Answer

Breaking down carbohydrates

Answer

Secreting digestive enzymes

Question 9

What is the name of the undigested material that remains in the large intestine?

Accepted Answer

Feces

Answer

Chyle

Answer

Chyme

Answer

Bolus

Question 10

Which of the following is a common digestive disorder characterized by difficulty swallowing?

Accepted Answer

Dysphagia

Answer

Dyspepsia

Answer

Constipation

Answer

Diarrhea

Question 11

Which of these is the role of the villi in the small intestine?

Accepted Answer

They absorb nutrients.

Answer

They secrete digestive enzymes.

Answer

They produce hormones.

Answer

They store waste products.

Question 12

Which enzyme breaks down carbohydrates?

Accepted Answer

Amylase

Answer

Protease

Answer

Lipase

Answer

Pepsin

Question 13

What is the waste product of protein digestion?

Accepted Answer

Urea

Answer

Carbon dioxide

Answer

Water

Answer

Ammonia

Question 14

Which of these is not a function of the large intestine?

Accepted Answer

To produce vitamins

Answer

To absorb water

Answer

To store waste

Answer

To digest cellulose

Question 15

Which type of teeth are good for grinding?

Accepted Answer

Molars

Answer

Incisors

Answer

Canines

Answer

Premolars

Question 16

Which of these animals is a vegetarian?

Accepted Answer

Cow

Answer

Lion

Answer

Tiger

Answer

Eagle

Question 17

What is the name of the movement of nutrients from the digestive system into the blood?

Accepted Answer

Active transport

Answer

Diffusion

Answer

Osmosis

Answer

Facilitated diffusion

Question 18

Which organ produces bile?

Accepted Answer

Liver

Answer

Pancreas

Answer

Gallbladder

Answer

Small intestine

Question 19

What does the epiglottis do?

Accepted Answer

Stops food going into the lungs

Answer

Produces digestive juices

Answer

Controls the flow of bile

Answer

Absorbs nutrients

Question 20

Which enzyme is responsible for breaking down proteins into amino acids during digestion?

Accepted Answer

Pepsin

Answer

Amylase

Answer

Lipase

Answer

Lactase

Question 21

What is the name of the muscular tube that carries food from the mouth to the stomach?

Accepted Answer

Esophagus

Answer

Trachea

Answer

Pharynx

Answer

Large intestine

Question 22

Which enzyme breaks down proteins into amino acids during digestion?

Accepted Answer

Protease

Answer

Lipase

Answer

Amylase

Answer

Lactase

Question 23

What is the primary function of villi in the small intestine?

Accepted Answer

Increase surface area for nutrient absorption

Answer

Secrete digestive enzymes

Answer

Store food before it enters the large intestine

Answer

Produce bile

Question 24

Which of the following is not a part of the large intestine?

Accepted Answer

Esophagus

Answer

Cecum

Answer

Colon

Answer

Rectum

Question 25

Which is the liver's primary function in the digestive process?

Accepted Answer

Produce bile

Answer

Absorb nutrients

Answer

Store food

Answer

Secrete digestive enzymes

Question 26

Which of the following is a typical feature of carnivorous animals' digestive systems?

Accepted Answer

Short, less complex digestive tract

Answer

Long, complex digestive tract

Answer

Teeth adapted for grinding plant material

Answer

Stomach for storing large amounts of food

Question 27

What is the primary waste product of the digestive system?

Accepted Answer

Feces

Answer

Urine

Answer

Sweat

Answer

Saliva

Question 28

Which organ in the digestive system produces enzymes that break down carbohydrates?

Accepted Answer

Pancreas

Answer

Stomach

Answer

Liver

Answer

Large intestine

Question 29

Which of the following is NOT a primary function of the digestive system?

Accepted Answer

Storing energy for the future

Answer

Breaking down food into nutrients

Answer

Absorbing nutrients into the bloodstream

Answer

Removing waste products

Question 30

What is the initial stage of digestion called?

Accepted Answer

Mastication

Answer

Stomach acid secretion

Answer

Peristalsis

Answer

Absorption

Question 31

Which organ is responsible for producing bile?

Accepted Answer

Liver

Answer

Stomach

Answer

Pancreas

Answer

Small intestine

Question 32

What is the main function of the tiny finger-like projections called villi in the small intestine?

Accepted Answer

Increase surface area for absorption of nutrients

Answer

Produce digestive enzymes

Answer

Store bile

Answer

Neutralize stomach acid

Question 33

What is the primary waste product of digestion?

Accepted Answer

Feces

Answer

Carbon dioxide

Answer

Water

Answer

Urine

Question 34

Which hormone is responsible for stimulating the production of stomach acid?

Accepted Answer

Gastrin

Answer

Insulin

Answer

Glucagon

Answer

Pepsin

Question 35

What is the main function of the epiglottis?

Accepted Answer

Prevents food from entering the windpipe during swallowing

Answer

Produces saliva

Answer

Churns and mixes food in the stomach

Answer

Absorbs water from the large intestine

Question 36

Which animal has a unique digestive system adapted to efficiently digest plant-based materials like grass?

Accepted Answer

Cow

Answer

Cat

Answer

Snake

Answer

Fish

Question 37

What is the approximate pH level of stomach acid?

Accepted Answer

1-2

Answer

4-5

Answer

6-7

Answer

8-9

Question 38

In the digestive process, what stage comes first?

Accepted Answer

Taking in food (Ingestion)

Answer

Soaking up nutrients (Absorption)

Answer

Breaking down food (Assimilation)

Answer

Getting rid of waste (Elimination)

Question 39

Which part of the body makes bile?

Accepted Answer

Liver

Answer

Pancreas

Answer

Gallbladder

Answer

Small intestine

Question 40

In which part of the digestive system are carbohydrates mainly digested?

Accepted Answer

Small intestine

Answer

Large intestine

Answer

Stomach

Answer

Esophagus

Question 41

Which of these is NOT a task of the digestive system?

Accepted Answer

Controlling body temperature

Answer

Breaking down food

Answer

Absorbing nutrients

Answer

Getting rid of waste

Question 42

Which enzyme breaks down proteins?

Accepted Answer

Protease

Answer

Amylase

Answer

Lipase

Answer

Lactase

Question 43

What do the tiny finger-like projections in the small intestine do?

Accepted Answer

Increase the surface area for nutrient absorption

Answer

Produce digestive enzymes

Answer

Store bile

Answer

Prevent food from entering the large intestine

Question 44

Which of the following is NOT an accessory organ of the digestive system?

Accepted Answer

Heart

Answer

Liver

Answer

Gallbladder

Answer

Pancreas

Question 45

What is the primary function of the villi in the small intestine?

Accepted Answer

To absorb nutrients

Answer

To break down food

Answer

To secrete enzymes

Answer

To store food

Question 46

Which of the following animals typically has the longest digestive tract relative to its body size?

Accepted Answer

Cow

Answer

Rabbit

Answer

Human

Answer

Snake

Question 47

Which enzyme is responsible for breaking down carbohydrates into simpler sugars?

Accepted Answer

Amylase

Answer

Protease

Answer

Lipase

Answer

Nuclease

Question 48

What is the correct order of organs in the digestive system through which food passes?

Accepted Answer

Mouth, oesophagus, stomach, small intestine, large intestine

Answer

Mouth, large intestine, stomach, small intestine, oesophagus

Answer

Large intestine, mouth, small intestine, oesophagus, stomach

Answer

Oesophagus, mouth, stomach, large intestine, small intestine

Question 49

What is a primary function of hydrochloric acid in the stomach?

Accepted Answer

To kill bacteria

Answer

To neutralise food

Answer

To break down proteins

Answer

To absorb nutrients

Question 50

Which of the following is NOT a common symptom of indigestion?

Accepted Answer

Rash

Answer

Heartburn

Answer

Diarrhoea

Answer

Nausea

Question 51

What is the main function of the pancreas in digestion?

Accepted Answer

To secrete digestive enzymes

Answer

To absorb nutrients

Answer

To store bile

Answer

To produce hormones

Question 52

Which organ is the largest in the digestive system?

Accepted Answer

Liver

Answer

Stomach

Answer

Small intestine

Answer

Large intestine