CHAPTER 3 BREAK IT DOWN RECAP

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Ingestion

Mechanical digestion

Chemical digestion

MOVING THE FOOD INTO YOUR MOUTH

BREAKING THE FOOD INTO SMALLER PIECES.

THIS IS DONE BY YOUR TEETH

BREAKING THE FOOD INTO EVEN SMALLER PIECES.

USING ENZYMES TO BREAK DOWN THE FOOD MOLECULES. 

Fases of digestion. Put them in the right order.

1

2

3

4

digestion

ingestion

absorption

egestion

which 3 organs break down food?

1. gallbladder, liver, spleen
2. pancreas, liver, gallbladder
3. liver, gallbladder, tongue
4. none of the above

Food is pushed into your stomach by

1. muscular contractions called peristalsis
2. digestive juices
3. voluntary control
4. gravity

What does bile do?

1. it secretes nutrients
2. it breaks down proteins
3. it produces digestive juices
4. it digests fat

The role of the pancreas, liver, and gallbladder is to

1. use enzymes and bile to break down food
2. clear the system of any toxins
3. break food into small chunks
4. remove liquid from the stomach

1

2

3

4

5

6

7

8

heart

large intestine

small intestine

stomach

lung

liver

brain

kidney

The digestion of starch starts in the ...

1. Mouth
2. Stomach
3. Duodenum
4. Small intestine

What is the function of an enzyme?

Breaking down big fat particles into smaller ones. 

Which enzyme breaks down fat?

1. amylase
2. lipase
3. fatty acid and glycerol
4. protease

Which of the following digestive juices does not contain enzymes?

1. intestinal juice
2. saliva
3. gastric juice
4. gastric acid

TRUE OR FALSE? Emulsification is an example of chemical digestion.

1. True
2. False

Which of the following organs is not an excretory organ?

1. Kidney
2. Lungs
3. Skin
4. Liver

What is peristalsis?

1. muscle movement to push food down the gut
2. making smaller droplets of fats
3. movement of nutrients into the circulatory system

Where is bile made?

in the liver

Which organ neutralises gastric acid?

pancreas

What can you say about the hepatic portal vein?

the vein between the small intestines and the liver. It makes sure that the nutrients get absorbed into the blood.

Which part of the intestines does te nutrients get absorbed into?

villi of the small intestine

Which nutrients do not need to be digested?

1. Vitamins, minerals, fats
2. Water, carbohydrates, proteins
3. Vitamins, minerals, water
4. Fats, carbohydrates, proteins

Urinary system

Digestive system

Pancreas

Urethra

Kidneys

Bladder

Oesophagus

What is the function of the urinary
system?

Where in the kidney is urine made?

in the renal cortex and renal medulla

What is the formula for BMI?

bmi = weight : height2

What is the formula of cellular respiration?

glucose + o2 --> co2 + h2o + energy