Food and Digestion Review
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- Slide 1Report an issue
Food and Digestion Review
Text - Slide 2Report an issue
- Question 3120 secondsReport an issueQ.
A balanced diet has 7 nutrient types which are:
water, minerals, fats, fibre and ...
answer choices - Question 4120 secondsReport an issueQ.
The best source of protein is...?
answer choices - Question 5120 secondsReport an issueQ.
What do carbohydrates do for our bodies?
answer choices - Slide 6Report an issue
Nutrition labels
These are tables full of information about what is in our food.
- Slide 7Report an issue
This label is used for a question on the next slide.
Look at the information carefully.
- Question 8120 secondsReport an issueQ.
Use the image on the previous slide to answer this question.
How much total sugar is there in a serving of this milk?
answer choices - Slide 9Report an issue
Testing for carbohydrates
Can you remember these?
Iodine is added to starch and it turns from brown to blue-black.
Benedicts solution is added to glucose solution and must be heated. A positive test results in a colour change from blue to brick red.
- Slide 10Report an issue
Testing for Protein and Fats
For a protein test, you use Biuret solution and it will change from blue to lilac in the presence of protein.
By mixing ethanol and water with fats or oils and giving it a good shake, a cloudy white emulsion is formed.
- Question 11120 secondsReport an issueQ.
Lucy did a food test and these were her results. Which food type was she testing for?
answer choices - Slide 12Report an issue
Digestive System
You will need to study this diagram of the human digestive system.
No doubt you will need to label a diagram in the near future!
- Question 13120 secondsReport an issueQ.
What is the part of the digestive system labelled with a '3'?
answer choicesoesophagus
stomach
small intestine
- Slide 14Report an issue
- Question 15120 secondsReport an issueQ.
Where does most of our digestion take place?
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Enzymes
Enzymes are proteins that speed up reactions in our bodies. They are really helpful in the digestive system as they break long insoluble molecules of food into smaller soluble molecules that we can absorb.
- Slide 17Report an issue
- Slide 18Report an issue
Action of amylase
amylase enzyme digests starch, producing smaller sugars
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PROTEases digest PROTEins
Smaller amino acids are produced
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LIPases digest fats and LIPids
- Question 21120 secondsReport an issueQ.
What would happen in this experiment?
The tubing contains starch only.
Iodine and water surround the visking tubing.
answer choicesthe starch would be digested
the iodine would turn blue-black
there would be no change in the colour of the iodine
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