Digestion, enzymes and food tests

Digestion, enzymes and food tests.
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Slide 1: Slide
ChemistryLower Secondary (Key Stage 3)

This lesson contains 21 slides, with interactive quizzes and text slide.

time-iconLesson duration is: 50 min

Items in this lesson

Digestion, enzymes and food tests.

Slide 1 - Slide

Carbohydrates
Fats
Protein
Water
Pasta
Chicken
Cheese
The sugars, starches and fibres found in fruits, grains and vegetables. The body’s main source of energy”
A rich source of energy that serves a range of functions within the body
The building blocks of life found in every human cell
Soup
Assists in removing waste products from the body

Slide 2 - Drag question

Muscular-skeletal system
Immune system
Nervous system
Urinary system
Respiratory system
Digestive system
Reproductive system
Circulatory system

Slide 3 - Drag question

Circulatory System
Nervous System
Respiratory System
Muscular-Skeletal System
Reproductive System
Digestive System

Slide 4 - Drag question

Match the organ to the organ system.
Lung
Stomach
Brain
Skull
Heart
Respiratory
Digestive
Circulatory
Nervous
Skeletal

Slide 5 - Drag question

What is the role of saliva in digestion?
A
It helps to break down food with enzymes.
B
It absorbs nutrients from the food.

Slide 6 - Quiz

Where does the majority of nutrient absorption occur in the digestive system?
A
Stomach
B
Small intestine

Slide 7 - Quiz

Which enzyme is responsible for breaking down carbohydrates in the digestive system?
A
Pepsin
B
Amylase

Slide 8 - Quiz

What is the function of the large intestine in digestion?
A
Secretes digestive enzymes.
B
Absorbs water and forms feces.

Slide 9 - Quiz

What is the purpose of bile in digestion?
A
It emulsifies fats for better digestion.
B
It helps in protein synthesis.

Slide 10 - Quiz

Which food test is used to detect the presence of starch?
A
Biuret test
B
Iodine test
C
Sudan III test
D
Benedict's test

Slide 11 - Quiz

Which food test is used to detect the presence of reducing sugars?
A
Iodine test
B
Sudan III test
C
Benedict's test
D
Biuret test

Slide 12 - Quiz

Which food test is used to detect the presence of proteins?
A
Biuret test
B
Sudan III test
C
Iodine test
D
Benedict's test

Slide 13 - Quiz

Which food test is used to detect the presence of lipids or fats?
A
Biuret test
B
Benedict's test
C
Iodine test
D
Sudan III test

Slide 14 - Quiz

Which food test is used to detect the presence of vitamin C?
A
DCPIP test
B
Iodine test
C
Benedict's test
D
Biuret test

Slide 15 - Quiz

Explain how our body breaks down carbohydrate and absorbs the products.

Slide 16 - Open question

Enzymes - explain what the lock and key theory helps us to explain about how enzymes.

Slide 17 - Open question

Describe how to test for carbohydrates

Slide 18 - Open question

Describe how to test for lipids

Slide 19 - Open question

Describe how to test for proteins

Slide 20 - Open question

Describe how to test for vitamin C

Slide 21 - Open question