This fully-resourced lesson describes how enzyme and substrate concentration can affect the rate of an enzyme-controlled reaction. The PowerPoint and accompanying resources are the 4th in a series of 5 lessons which cover the detail of point 1.4.2 of the AQA A-level Biology specification. Transcription and translation are also introduced and therefore this lesson could be used in preparation for the detailed lessons in topic 4.2.
The first part of the lesson describes how an increase in substrate concentration will affect the rate of reaction when a fixed concentration of enzyme is used. Time is taken to introduce limiting factors and students will be challenged to identify substrate concentration as the limiting factor before the maximum rate is achieved and then they are given discussion time to identify the possible factors after this point. A series of exam-style questions are used throughout the lesson and the mark schemes are displayed to allow the students to assess their understanding and for any misconceptions to be immediately addressed. Moving forwards, the students have to use their knowledge of substrate concentration to construct a graph to represent the relationship between enzyme concentration and rate of reaction and they have to explain the different sections of the graph and identify the limiting factors.
The final section of the lesson describes how the availability of enzymes is controlled in living organisms. Students will recognise that this availability is the result of enzyme synthesis and enzyme degradation and a number of prior knowledge checks challenge students on their knowledge of proteins as covered in topic 1.4.1
Please note that this lesson explains the Biology behind the effect of concentration on enzyme-controlled reactions and not the methodology involved in carrying out such an investigation as this is covered in a core practical lesson.
Get this resource as part of a bundle and save up to 31%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Bundle
Topic 1: Biological molecules (AQA A-level Biology)
The biological molecules topic is incredibly important, not just because it is found at the start of the course, but also because of its detailed content which must be well understood to promote success with the other 7 AQA A-level Biology topics. Many hours of intricate planning has gone into the design of all of the 20 lessons that are included in this bundle to ensure that the content is covered in detail, understanding is constantly checked and misconceptions addressed and that engagement is high. This is achieved through the wide variety of tasks in the PowerPoints and accompanying worksheets which include exam-style questions with clear answers, discussion points, differentiated tasks and quick quiz competitions. The following specification points are covered by the lessons within this bundle: * Monomers and polymers * Condensation and hydrolysis reactions * Common monosaccharides * Maltose, sucrose and lactose * The structure and functions of glycogen, starch and cellulose * Biochemical tests using Benedict's solution for reducing sugars and non-reducing sugars and iodine/potassium iodide for starch * The structure and properties of triglycerides and phospholipids * The emulsion test for lipids * The structure of amino acids * The formation of dipeptides and polypeptides * The levels of protein structure * The biuret test for proteins * Enzymes act as biological catalysts * The induced-fit model of enzyme action * The properties of an enzyme * The effect of temperature on the rate of an enzyme-controlled reaction * The effect of enzyme and substrate concentration on the rate of an enzyme-controlled reaction * The effect of competitive and non-competitive inhibitors on the rate of an enzyme-controlled reaction * The structure of DNA and RNA * The semi-conservative replication of DNA * ATP as the universal energy currency * The properties of water and its importance in Biology * Inorganic ions Due to the detail of each of these lessons, it is estimated that it will take in excess of 2 months of allocated teaching time to cover the content. If you would like to see the quality of the lessons, download the monomers and polymers, polysaccharides, triglycerides, dipeptides and polypeptides and inorganic ions lessons as these have been shared for free
£24.50
Bundle
Topic 1.4.2: Many proteins are enzymes (AQA A-level Biology)
Each of the five lessons included in this lesson bundle are fully-resourced and have been designed to engage and motivate the students whilst covering the following points that are detailed in topic 1.4.2 of the AQA A-level Biology specification: * Each enzyme lowers the activation energy of the reaction it catalyses * The induced-fit model of enzyme action * The specificity of enzymes * The effects of temperature, pH, enzyme concentration, substrate concentration and concentration of competitive and non-competitive inhibitors on the rate of enzyme-controlled reactions The lessons have been planned to come as a bundle and references are continually made to previous lessons in the topic to support the students in making the important links between structure, properties and actions of these globular proteins.
£8.00
Bundle
Topic 1.4: Proteins (AQA A-level Biology)
All 8 of the lessons that are included in this lesson bundle are highly detailed and will engage and motivate the students whilst covering the content of topic 1.4 of the AQA A-level Biology specification. With proteins playing critical roles in a wide range of living organisms, a clear understanding of the structure and functions of these biological molecules is important for all of the other topics. The following specification points are covered by the lessons in this bundle: * The general structure of an amino acid * A condensation reaction between two amino acids forms a peptide bond * The formation of dipeptides and polypeptides * The role of the tertiary structure bonds in the structure of a protein * The variety of functions of proteins in living organisms * The relationship between protein structure and function * The biuret test for proteins * Enzymes lower the activation energy of the reaction it catalyses * The induced fit model of enzyme action * The specificity of enzymes * The effects of temperature, pH, enzyme and substrate concentration and inhibitors on the rate of enzyme-controlled reactions If you would like to sample the quality of lessons in this bundle, then download the dipeptides & polypeptides lesson and the biuret test lesson as these have been uploaded for free
£9.00
Something went wrong, please try again later.
This resource hasn't been reviewed yet
To ensure quality for our reviews, only customers who have purchased this resource can review it
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£2.00