I have been teaching science in the UK for over 20 years with a career working in a range of schools. If you like the material please give it a rating. If you don't like the material please let me know and I will make improvements.
I have been teaching science in the UK for over 20 years with a career working in a range of schools. If you like the material please give it a rating. If you don't like the material please let me know and I will make improvements.
AQA A level Biology Specificaton
Unit 1 Biological Molecules
Topic:
1.4.2 Many proteins are enzymes
NOT THE REQUIRED PRACTICAL
This lesson covers:
Each enzyme lowers the activation energy of the reaction it catalyses.
The induced-fit model of enzyme action.
The properties of an enzyme relate to the tertiary structure of its active site and its ability to combine with complementary substrate(s) to form an enzyme-substrate complex.
• The specificity of enzymes
• The effects of the following factors on the rate of enzymecontrolled reactions – enzyme concentration, substrate concentration, concentration of competitive and of noncompetitive inhibitors, pH and temperature.
Students should be able to:
• appreciate how models of enzyme action have changed over time
• appreciate that enzymes catalyse a wide range of intracellular and extracellular reactions that determine structures and functions from cellular to whole-organism level.
To complete the lesson provide students with related past exam questions
AQA A level Biology Specificaton
Unit 1 Biological Molecules
Topic:
1.4.1 Proteins
This lesson covers:
Amino acids are the monomers from which proteins are made.
The general structure of an amino acid
NH2 represents an amine group, COOH represents a carboxyl group and R represents a side chain.
The twenty amino acids that are common in all organisms differ only in their side group.
A condensation reaction between two amino acids forms a peptide bond.
Dipeptides are formed by the condensation of two amino acids.
Polypeptides are formed by the condensation of many amino acids.
A functional protein may contain one or more polypeptides.
The role of hydrogen bonds, ionic bonds and disulfide bridges in the structure of proteins.
Proteins have a variety of functions within all living organisms.
The relationship between primary, secondary, tertiary and quaternary structure, and protein function.
The biuret test for proteins.
Students should be able to relate the structure of proteins to properties of proteins named throughout the specification.
To complete the lesson provide students with related past exam questions
AQA A level Biology Specificaton
Unit 1 Biological Molecules
Topic:
1.3 Lipids
This lesson covers:
Triglycerides and phospholipids are two groups of lipid
Triglycerides are formed by the condensation of one molecule of glycerol and three molecules of fatty acid
A condensation reaction between glycerol and a fatty acid (RCOOH) forms an ester bond
The R-group of a fatty acid may be saturated or unsaturated
In phospholipids, one of the fatty acids of a triglyceride is substituted by a phosphate-containing group
The different properties of triglycerides and phospholipids related to their different structures
The emulsion test for lipids
Students should be able to:
recognise, from diagrams, saturated and unsaturated fatty acids
explain the different properties of triglycerides and phospholipids.
To complete the lesson provide students with related past exam questions
Presentation on monosaccharides, disaccharides, polysaccharides and starch/reducing and non reducing sugar tests.
AQA A level Biology Specificaton
Unit 1 Biological Molecules
Topic:
1.1 Monomers and Polymers,
1.2 Carbohydrates
This material covers:
Monosaccharides are the monomers from which larger carbohydrates are made. Glucose, galactose and fructose are common monosaccharides.
A condensation reaction between two monosaccharides forms a glycosidic bond.
Disaccharides are formed by the condensation of two monosaccharides:
• maltose is a disaccharide formed by condensation of two glucose molecules
• sucrose is a disaccharide formed by condensation of a glucose molecule and a fructose molecule
• lactose is a disaccharide formed by condensation of a glucose molecule and a galactose molecule.
Glucose has two isomers, α-glucose and β-glucose, with structures:
Polysaccharides are formed by the condensation of many glucose
units.
• Glycogen and starch are formed by the condensation of αglucose.
• Cellulose is formed by the condensation of β-glucose.
The basic structure and functions of glycogen, starch and cellulose.
The relationship of structure to function of these substances in animal cells and plant cells.
Biochemical tests using Benedict’s solution for reducing sugars and non-reducing sugars and iodine/potassium iodide for starch.
To complete the lesson provide students with related past exam questions
Who wants to be a Millionnaire Style Quiz Thermoregulation
Can be used at the start and end of a lesson to show progress.
Can be used as a revision activity.
Who wants to be a Millionnaire Style Quiz Genetic Engineering
Can be used at the start and end of a lesson to show progress.
Can be used as a revision activity.
Who wants to be a Millionnaire Style Quiz Cell and Transport of Substances
Can be used at the start and end of a lesson to show progress.
Can be used as a revision activity.
Each element is it own separate PowerPoint slide with Atomic Mass and Atomic Number included, see thumbnail for format.
Atomic Mass and Atomic Number are listed as whole numbers (except Cl 35.5).
The colour version has all of the elements colour matched by group.
For a wall display print each slide as a whole page.
A colour and black & white version are included
