Enzymes notes

76 notes by 61 users · Page 1 of 2

This GoConqr page gathers notes on enzymes, from enzyme action and biological reactions to the effects of pH, temperature and inhibitors. It is for school students revising enzyme activity and teachers looking for ready-made material. There are more than 60 notes by over 50 users, mostly at school level. Pick a note to start exploring.

Enzymes at Work - pH Effects What is pH?pH is a measure of the hydrogen ion concentration, with values from 1 to 14. In this range, pH 7 is neutral, below pH7 is referred to as an acid, above pH7 is an alkali (or basic).The higher the concentrati... siobhan.quirk
2.5 - Enzymes 2.5 - Enzymes Active sites and enzymes Enzymes: globular proteins that work as catalysts speed up biochemical reactions aren't altered themselves in reactions found in all living cells also secreted by some cells to w... Blen Abate
Enzymes Enzymes 26/10/2016Enzymes - Enzymes are Biological catalysts. They are found in all living cells which speed up chemical reactions in our cells/body. Without Enzymes, chemical reactions inside our cells/body will work... Reece Thompson
Interfering with Enzymes - Poisons and Drugs Deadly poisonsMany poisonous substances have their effects because they inhibit or even overactivate enzymes. Potassium cyanide, for example, inhibits cell respiration. It does this because it is a non-competitive inh... siobhan.quirk
Enzymes and Temperature Heat and kinetic energyThe molecules in a gas or liquid move around continually. They have natural kinetic energy and move continously and randomly. These movements mean that molecules continually collide with each ot... siobhan.quirk
Enzymes at Work - Concentration Effects Increasing the substrate concentrationIn an experimental situation, the concentration of substrate can be varied for a fixed concentration of enzyme molecules. If there is no substrate, the reaction cannot proceed, be... siobhan.quirk
Proteins Proteins are made from long chains of smaller molecules called amino acids. These long chains are folded into particular shapes. This is important in relation to how antibodies and enzymes work. Enzymes are biological... lmg719
Enzymes MetabolismMetabolism is the sum of all the chemical reactions that take place within an organism. e.g. growth, movement, maintenance of a constant internal state, repair, response to stimuli, and reproduction.The most... eimearkelly3
AS Biology Enzymes Enzyme activity The reactions of cells including photosynthesis and respiration require the participation of substances called enzymes that are produced by living things. Enzymes are biological catalysts that speed up... Ammar Khan
enzyme inhibition enzyme activity can be inhibited by enzyme inhibitors- molecules that bind to the enzyme that they prevent from functioning. this can be competitive or non-competitive.competitive inhibition competitive inhibitor mole... Eleanor Goodsell
Enzymes and Metabolism - An Overview Catalytic PowerWithout enzymes, metabolic reactions could not continue at a rate high enough to support any living processes. Enzymes increase reaction rates by a 10(7) times. That is 10 million times faster. In fact,... siobhan.quirk
Enzyme Action Falling apart and staying togetherCovalently bonded molecules do not just assemble or break up - they are far too stable. Maltose is made up of two glucose molecules joined by a glycosidic bond. In order to split malt... siobhan.quirk
Enzymes at Work - Coenzymes and Prosthetic Groups Enzymes shaping upSome enzymes can only catalyse a reaction if another non-protein substance is present. There are a number of different substances that help to ensure that enzyme-controlled reactions can take place a... siobhan.quirk
Enzymes at Work - Inhibitors of Action Inhibitors of enzyme-controlled reactionsInhibitors are defined as substances that reduce the reaction rate in an enzyme-controlled reaction because they have some effect on the enzyme molecule. A wide range of enzyme... siobhan.quirk
The effect of changing enzyme concentration on rate of reaction Independent: Conc. of enzyme Control: Temperature Volume of enzyme Volume of substrate Concentration of substrate pH Method: protease (1% trypsin) & casein solution Make up diff. conc. enzyme using distilled... AD_
Extracellular enzymes notes; in detail All reactions occurring inside cells require raw materials such as substrates to make the compulsory products needed by the organism. The raw materials need to be constantly supplied to the cells as the orga... molly skinner
factors affecting enzyme activity temperature the rise in temperature makes the enzyme molecules vibrate more the increase in kinetic energy means more collisions occur with a higher energy, which means more reactions are likely to happen if the vibra... Eleanor Goodsell
B3 - More on Enzymes Enzymes like it warm not not too hot Changing temperature changes the rate of a enzyme-catalysed reaction The higher the temperature, the quicker the reaction at first. This is because more heat means the enzymes and ... luci.crook
what effects enzyme activity suzan
cofactors and coenzymes co factors and co enzymes are essential for enzyme function some enzymes will only work if there is another no-protein substance bound to them. these non-protein substances are called co factors. some co factors are i... Eleanor Goodsell
How Enzymes Work 1. The enzyme and substrate have the same shape and join.    - Enzyme e.g. Catalase    - Substrate e.g. H2O2 (hydrogen                 peroxide)2. Once ... chloe__spencer
Investigating Enzymatic Reactions 1. Put a drop of Iodine Solution into every well on the spotting tile  2. Place a bunsen burner on a heat proof mat, and a tripod and gauze over the bunsen burner. Put a beaker of water on top of the tripod and h... Hettie White
Enzymes Topic List (Chapter 4) Enzymes Topic List (Chapter 4)4.1 Enzyme Action4.2 Factors Effecting Enzyme Activity4.3 Enzyme Inhibitors4.4 Co-Factors, Co-Enzymes; Prosthetic Groups.Practice Questions Reuben_
Science GWAS notes - 15/5/2018 Salivary amylase - is in saliva  Most active in different places Arginase - will thrive in a basic environment Every enzyme has an optimal pH and optimal temperature Three factors - pH, temperature and concentrat... Taasia Thong

More Enzymes resources

All Enzymes resources Quizzes 75 Mind maps 645 Flashcards 315 Slides 14

About enzymes notes

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Exploring enzymes notes

Start with Enzymes for an introduction to enzymes as biological catalysts. Then read Biology: Enzymes & Biological Reactions to explore enzymes in the context of reactions in cells. Notes give you room to read explanations in full and return to a passage when you need it.

Build a revision route

For a closer look at factors affecting enzyme activity, compare Enzymes and Temperature with Enzymes at Work - Concentration Effects. You can also read Interfering with Enzymes - Poisons and Drugs alongside the notes on inhibitors.

After reading, write down the main idea from each note in your own words. Return to the passages that are harder to explain. If you want to check your recall, switch to a quiz on the Enzymes unit page; a mind map can help you organise related ideas visually.

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Which note should I start with?

Start with Enzymes for an introduction to enzymes as biological catalysts. If you are already familiar with that idea, Enzymes and Temperature offers a more focused place to begin. You can then move to the notes on concentration or inhibitors, depending on what you are revising.

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Yes. Every note listed here is free to open and study without an account. The resources were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.

What topics do these notes cover?

The notes cover enzyme action and biological reactions, as well as the effects of temperature, pH and concentration. Other notes look at inhibitors, poisons and drugs, and coenzymes and prosthetic groups. Most of the material is at school level, for students revising and teachers seeking resources.