1. Everyday Consumer Products1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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2. Which elements are present in CARBOHYDRATES?1
Which elements are present in CARBOHYDRATES?
answer
Carbon, Hydrogen and Oxygen.
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3. What is the ratio of hydrogen and oxygen in a CARBOHYDRATE?2
What is the ratio of hydrogen and oxygen in a CARBOHYDRATE?
answer
Hydrogen and Oxygen have a 2:1 ratio
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4. Give some uses for CARBOHYDRATES?3
Give some uses for CARBOHYDRATES?
answer
Food
For making Fuels
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5. What is the formula for Glucose ?4
What is the formula for Glucose ?
answer
C6H12O6
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6. What is STARCH and how is it made?5
What is STARCH and how is it made?
answer
A complex carbohydrate
Made when many Glucose molecules join together (polymerise)
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7. What is the test for Starch?6
What is the test for Starch?
answer
Iodine solution turns blue/black
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8. What is the test for GLUCOSE?7
What is the test for GLUCOSE?
answer
Benedict’s solution turns orange/red
(when heated)
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9. Why do plants make STARCH?8
Why do plants make STARCH?
answer
They make starch from glucose to store energy
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10. How is starch broken down?9
How is starch broken down?
answer
Starch is broken down during digestion in the body.
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11. Which carbohydrate can pass through the gut wall into the bloodstream?10
Which carbohydrate can pass through the gut wall into the bloodstream?
answer
GLUCOSE (small, soluble molecule)
(starch is large and insoluble – can’t pass across gut wall)
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12. Which process breaks down glucose for energy?11
Which process breaks down glucose for energy?
answer
RESPIRATION
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13. What is the word equation for respiration?12
What is the word equation for respiration?
answer
glucose + oxygen  energy + carbon + water
dioxide
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14. What is PHOTOSYNTHESIS?13
What is PHOTOSYNTHESIS?
answer
The process by which plants make carbohydrates from carbon dioxide and water using light energy
Calderglen High School

15. What gas is released as a by-product of photosynthesis?14
What gas is released as a by-product of photosynthesis?
answer
Oxygen
(O2)
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16. How are essential oils extracted from plants?15
How are essential oils extracted from plants?
answer
STEAM DISTILLATION
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