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WorksheetsOrganisation - Digestion
Total questions: 20
Worksheet time: 7mins
Which of these is NOT one of the 7 food groups?
Carbohydrates
Proteins
Dairy
Lipids
Which of these are types of carbohydrate?
Starch
Sugar
Amino acids
Fatty acids
"Meat, eggs, cheese, beans, nuts and seeds." These foods are all good sources of which nutrient?
Simple carbohydrates
Fats (lipids)
Complex carbohydrates
Protein
What is the major function of lipids (fats) in the body?
Growth and repair
Energy; make up part of cell membranes so essential for normal growth
Why does starch need to be digested (broken down)?
It is too big to be absorbed
It is too small to be absorbed
Proteins are broken down into _____ _____.
(a)
Starch is broken down into (a) .
Lipids (fats) are broken down into fatty acids and (a) .
Which chemical reagent is used to test for sugars?
Benedict's
Biuret
Iodine
Sudan III
What other conditions are needed for the Benedict's test?
(a)
Which chemical reagent is used to test for proteins?
Benedict's
Biuret
Iodine
Sudan III
Which chemical reagent is used to test for lipids (fats)?
Benedict's
Biuret
Iodine
Sudan III
Which chemical reagent is used to test for starch?
Benedict's
Biuret
Iodine
Sudan III
Which of these colours does NOT indicate a positive result for the Benedict's test?
Blue
Green
Yellow
Red
What colour is iodine in the presence of starch?
Blue-black
Green
Orangey-brown
Red
With the Biuret test, if the sample solution is purple, what sort of result does this indicate?
Negative
Positive
What forms on the surface of a sample containing lipids (fats) in the Sudan III test?
(a)
What are the two main functions of the digestive system?
(a)
What is the name for the finger-like projections in the small intestine that provide a large surface area for the absorption of food?
(a)
In which part of the digestive system does digestion begin?
(a)
