Enzymes in breakdown & synthesis (Edexcel GCSE Biology): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why do many molecules we eat need to be broken down by digestive enzymes?
Why do many molecules we eat need to be broken down by digestive enzymes?
They are too big to pass through walls
What form do plants store energy in?
What form do plants store energy in?
Starch
When plants need energy, what do enzymes break starch down into?
When plants need energy, what do enzymes break starch down into?
Sugars
What type of enzyme converts carbohydrates into simple sugars?
What type of enzyme converts carbohydrates into simple sugars?
Carbohydrases
What do proteases convert proteins into?
What do proteases convert proteins into?
Amino acids
What do lipases break down?
What do lipases break down?
Lipids
What two products are formed when lipases break down lipids?
What two products are formed when lipases break down lipids?
Glycerol & fatty acids
Why are smaller molecules easier to absorb than large ones?
Why are smaller molecules easier to absorb than large ones?
They pass through digestive walls easily
What are carbohydrates synthesised from?
What are carbohydrates synthesised from?
Simple sugars
What are proteins synthesised from?
What are proteins synthesised from?
Amino acids
What are lipids synthesised from?
What are lipids synthesised from?
Fatty acids & glycerol
Besides breaking down molecules, what else can some enzymes do?
Besides breaking down molecules, what else can some enzymes do?
Join molecules together