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GCSE Biology > B3 The Digestive System > Flashcards

B3 The Digestive System Flashcards

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1
Q

What is the primary function of the digestive system?

A

To break down food into nutrients that the body can absorb.

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2
Q

True or False: The mouth is the first part of the digestive system.

A

True

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3
Q

Fill in the blank: The process of chewing food is called __________.

A

mastication

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4
Q

What enzyme in saliva begins the digestion of carbohydrates?

A

Amylase

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5
Q

What is the role of the esophagus in the digestive system?

A

To transport food from the mouth to the stomach.

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6
Q

Multiple choice: Which organ produces bile?

A

Liver

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7
Q

What is the function of the stomach in digestion?

A

To break down food using acids and enzymes.

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8
Q

True or False: The small intestine is where most nutrient absorption occurs.

A

True

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9
Q

What are the three parts of the small intestine?

A

Duodenum, jejunum, ileum

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10
Q

Fill in the blank: The __________ is responsible for water absorption and the formation of feces.

A

large intestine

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11
Q

What is the role of the pancreas in the digestive system?

A

To produce digestive enzymes and bicarbonate.

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12
Q

Multiple choice: Which part of the digestive system is primarily involved in the absorption of nutrients?

A

Small intestine

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13
Q

What is the term for the wave-like muscle contractions that move food through the digestive tract?

A

Peristalsis

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14
Q

True or False: The gallbladder stores bile produced by the liver.

A

True

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15
Q

What is the main function of the rectum?

A

To store feces before excretion.

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16
Q

Fill in the blank: The __________ is a muscular valve that controls the passage of food from the stomach to the small intestine.

A

pyloric sphincter

17
Q

What is the function of villi in the small intestine?

A

To increase the surface area for absorption.

18
Q

Multiple choice: Which of the following is NOT a part of the digestive system?

A

Kidney

19
Q

What role do probiotics play in the digestive system?

A

They help maintain a healthy gut microbiome.

20
Q

True or False: Fiber is important for digestive health.

A

True

21
Q

What is the term for the breakdown of food into smaller components?

A

Digestion

22
Q

Fill in the blank: The __________ helps in the emulsification of fats.

A

bile

23
Q

What is the primary purpose of gastric acid?

A

To kill bacteria and aid in digestion.

24
Q

Multiple choice: Which structure prevents food from entering the trachea?

A

Epiglottis

25
Q

What is the role of digestive enzymes?

A

To break down macromolecules into smaller molecules.

26
Q

True or False: The liver detoxifies substances in the body.

A

True

27
Q

What is the final stage of digestion?

A

Excretion of waste products.

28
Q

What are the three main types of food molecules?

A

Carbohydrates, proteins, and lipids.

29
Q

True or False: Proteins are made up of amino acids.

A

True.

30
Q

Fill in the blank: The main function of carbohydrates in the body is to provide ______.

A

energy.

31
Q

Which food molecule is primarily responsible for storing energy?

A

Lipids.

32
Q

What are the building blocks of proteins called?

A

Amino acids.

GCSE Biology (3 decks)

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