B3 Enzymes & Digestion (AQA GCSE Combined)
Quiz by Mr R Horn
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
- Q 1/55Score 0
What is the name of the 'model' that explains how enzymes work ?
29Lock and key model
Product model
Substrate model
Active site model
- Q1
What is the name of the 'model' that explains how enzymes work ?
Lock and key model
Product model
Substrate model
Active site model
30s - Q2
What name is given to the molecule/substance that an enzyme acts on?
Lock and key model
Substrate
Product
Active site
30s - Q3
Each type of enzyme only acts on one substance/molecule (substrate).
e.g. amylase only works on starch;
lipase only works of lipids (fats and oils)
truefalseTrue or False30s - Q4
What name is given to the part of an enzyme where the substrate binds ?
Active site
Product
Lock and key model
Substrate
30s - Q5
Enzymes are specific. Each type of enzyme only acts on one substance/molecule (substrate).
Why are enzymes specific?
Because all enzymes are types of protein
Because every type of enzymes works best at a particular (optimum) pH
Because their active site is complementary to the substrate.
(The substrate fits into the active site perfectly)
Because every type of enzymes works best at a particular (optimum) temperature
30s - Q6
At high temperatures enzymes lose their shape (permanently) and stop working.
What word is used to describe these non-functioning enzymes?
Dead
Inhibited
Denatured
Activated
30s - Q7
What keyword means: 'two shapes that fit together perfectly'?
eg1 like a key fits in a lock;
eg2 like the substrate fits in the active site
Elementary
Denatures
Derogatory
Complementary
30s - Q8
At high temperatures enzymes lose their shape (permanently) and stop working.
What word is used to describe these non-functioning enzymes?
Users re-arrange answers into correct orderJumble30s - Q9
What keyword means: 'two shapes that fit together perfectly'?
eg1 like a key fits in a lock;
eg2 like the substrate fits in the active site
Users re-arrange answers into correct orderJumble30s - Q10What are the building blocks of proteins?Nucleic acidsSugarsStarchAmino acids20s
- Q11Which type of enzyme digest proteins?ProteaseAmylaseCarbohydraseLipase20s
- Q12Which food contains lots of protein?Steak + fish + beansDairy (milk and cheese)Grean leafy vegetablesRice, potato20s
- Q13Which type of enzyme digest proteins?Users re-arrange answers into correct orderJumble20s
- Q14Where in the digestive system are proteins digested?Mouth + small intestinePancreas + small intestineStomach + small intestineMouth and stomach20s
- Q15Which type of enzyme digest proteins?Users enter free textType an Answer20s
