Revision on consumer
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What is the function of these food additives? a) Colouring agents b) preservatives c) Anti oxidants d) Flavouring agents e) Stabilisers and thickeners a) To restore the colour of original food b) To destroy or prevent growth of micro organisms in food c) To prevention oxidation of food by air d) To to give or enhance the flavour o food e) To prevent food such as ice cream from separating into layers and to thicken soup or gravy
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good revision for chemistry spm
Transcript of Revision on consumer
What is the function of these food additives?
a) Colouring agents
b) preservatives
c) Anti oxidants
d) Flavouring agents
e) Stabilisers and thickeners
a) To restore the colour of original food
b) To destroy or prevent growth of micro organisms in food
c) To prevention oxidation of food by air
d) To to give or enhance the flavour of food
e) To prevent food such as ice cream from separating into layers
and to thicken soup or gravy
What type of food additives?
Colouring agents
preservatives
Anti oxidants
Flavouring agents
Stabilisers and thickeners
a) Benzoic acid
b) Pectin
c) Saccharin
d) aspartam
e) Ascorbic acid
Flavouring agents
f) tartrazine
f) Sodium nitrite preservatives
What type of food additives?
Colouring agents
preservatives
Anti oxidants
Stabilisers and thickeners
a) Azo compound
b) Vitamin E
c) Mono sodium glutamate
d) agar-agar
e) Gelatin
Flavouring agents
f) Sodium benzoate
Stabilisers and thickeners
g) Sulphur dioxide preservatives
What is the function of these traditional medicines?
a) lime
b) garlic
c) ginger
d) onions
e) Betel leaves- daun sireh
a) To increase digestive juice
b) Has antibiotic property
c) To warm the body
d) To purift blood
e) Stop bleeding nose
What is the function of these modern medicines?
a) analgesics
b) antibiotics
c) Psychotherapeutic
medicines
a) To relieve pain without affecting consciousness
b) Kill bacteria
c) To treat mental illness
a) stimulants
b) Antidepressant
c) Antipsychotic drug
a) To stimulate mental activity
b) To control worry, fear, anxiety, panic
c) To treat psychotic illness or
schizophrenia
c) Psychotherapeutic medicines
What type of modern medicines?
analgesics
Anti biotics
a) aspirin
b) Penicillin
c) streptomycin
d) Para cetamol
e) caffeinef) codeine
g) barbiturate
Anti biotics
analgesics
stimulantanalgesics
antidepressant
h) tranquiliser antidepressant
What is the uses of modern medicines?
Fever, prevent heart attack
fever
a) aspirin
b) Penicillin
c) streptomycin
d) Para cetamol
f) codeine
pneumonia Tuberculosis, dysentry
Treat gonorrhea, syphlis, pneumonia, meningitis
Cough medicine, headache
Soap:RCOO – Na + or R COO – K +
Detergent:
What is general formula for soap?and detergent?
What does hard water contains?
•Hard water contains calcium ion, Ca2+ or magnesium ion, Mg2+.
Why do soaps form scum with hard water?
• Soap reacts with calcium ion, Ca2+ or magnesium ion, Mg2+ in hard water to form insoluble salt, called scum
Why is soap not effective in hard water?
• Because formation of scum reduce the amount of soap for cleaning and thus wastage of soap occur.
Why is detergent more effective than soap in hard water?
• Detergent form soluble salt with calcium ion, Ca2+ or magnesium ion, Mg2+ in hard water.• Therefore the cleaning power is not affected by hard water.
Below are some additives in detergents. Fill in missing words
Additives Functions
1 Drying agents
( such as sodium sulphate, sodium silicate)
to keep the powder……………….DRY
Additives Functions 2 Builders
( such as Sodium triphosphate)
……………water.
soften
Additives Functions 3 Biological
enzymes
( such as amylase, lipase)
to digest
in dirt or to modify fabric feel
PROTEIN, FAT OR CARBOHYDRATE
Additives
Functions
4 Such as sodium perborate
Convert stains into
…………………substances
colourless
Additives
Functions
5 Perfumes Make clothes smell
……………. And clean
fresh
Additives Functions 6. Stabilizers
( such as silicones)
Prevent formation of
………………
foam
