A catalyst is a substance that speeds up the rate of a chemical reaction by

Breakdown of a large molecule into smaller molecules

formation of a large molecule from smaller molecules

making molecules move faster and form bonds quicker

What happened to pectinase at pH of 2 and pH of 8? [blank_start]The enzyme changed shape and denatured[blank_end]

The enzyme changed shape and denatured

Enzymes can only break down molecules

enzymes can only act on certain substrates

enzymes change shape and therefore dont function

enzymes improve their ability to function

enzymes and substrated collide less often

Quiz

Natalie Scanlon 9 questions

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1Enzymes are large molecules?
1. ATrue
2. BFalse
2A catalyst is a substance that speeds up the rate of a chemical reaction by
1. ABonding with the active site
2. BBreakdown of a large molecule into smaller molecules
3. Cmaking molecules move faster and form bonds quicker
4. Dformation of a large molecule from smaller molecules
3Enzymes function the way they do because they have a specific [blank_start]shape[blank_end].
1. Ashape
4A substrate is the [blank_start]reactant of an enzyme[blank_end]-[blank_start]catalyzed reaction[blank_end]
1. Areactant of an enzyme
2. Bcatalyzed reaction
5Is the enzyme altered or changed during the reaction?
1. Ayes
2. Bno
6What happened to pectinase at pH of
2 and pH of 8? [blank_start]The enzyme changed shape and denatured[blank_end]
1. AThe enzyme changed shape and denatured
7An enzyme is what type of molecule
1. ACarbohydrate
2. BLipid
3. CDNA
4. DProtien
8Which of the statements is false?
1. AEnzymes can only break down molecules
2. Benzymes can only act on certain substrates
3. Cenzymes are reuseable
4. Denzymes are shape dependent
9What happens to enzymes when they are outside their normal pH range?
1. Aenzyme molecules speed up
2. Benzymes improve their ability to function
3. Cenzymes and substrated collide less often
4. Denzymes change shape and therefore dont function

Description: Biology Quiz on Enzyme quiz, created by Natalie Scanlon on 27/09/2019.
Author: Natalie Scanlon
Language: English
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Tags: biology
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