This fully-resourced lesson describes the main stages of mitosis and explains the significance of this type of nuclear division in life cycles. The PowerPoint and accompanying resources have been designed to cover points 2.1.6 (c & e) of the OCR A-level Biology A specification and make direct links to the previous lesson which covered the cell cycle
Depending upon the exam board taken at GCSE, the knowledge and understanding of mitosis will differ considerably between students and there may be a number of misconceptions. This was considered at all points during the planning of the lesson so that existing errors are addressed and key points are emphasised throughout. Their understanding of interphase is challenged at the start of the lesson to ensure that they realise that it is identical pairs of sister chromatids that enter the M phase. The main part of the lesson focuses on prophase, metaphase, anaphase and telophase and describes how the chromosomes behave in these stages. There is a focus on the centrioles and the spindle fibres that they produce which contract to drag one chromatid from each pair in opposite directions to the poles of the cell. The remainder of the lesson is a series of understanding and application questions where students have to identify the various roles of mitosis in living organisms as well as tackling a Maths in a Biology context question. The lesson concludes with a final quiz round of MITOSIS SNAP where they only shout out this word when a match is seen between the name of a phase, an event and a picture.
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Enzymes, biological membranes & cell division (OCR A-level Biology A)
This lesson bundle has been formed from the 13 detailed lesson PowerPoints and their accompanying resources that have been uploaded to cover a lot of the content in modules 2.1.4, 2.1.5 and 2.1.6 of the OCR A-level Biology A specification. Each lesson contains a wide range of tasks, which include exam-style questions (with mark schemes), guided discussion points, and quick quiz competitions, that will engage and motivate the students whilst covering the following specification points: Module 2.1.4: Enzymes * The role of enzymes in catalysing reactions that affect metabolism at a cellular and whole organism level * The role of enzymes in catalysing both intracellular and extracellular reactions * The mechanism of enzyme action * The effect of pH on enzyme activity * The effect of temperature on enzyme activity * The calculation of the temperature coefficient * The effect of enzyme and substrate concentration on enzyme activity * The need for coenzymes, cofactors and prosthetic groups in some enzyme-controlled reactions Module 2.1.5: Biological membranes * The fluid mosaic model of membrane structure and the roles of its components * Simple and facilitated diffusion as forms of passive transport * Active transport, endocytosis and exocytosis as processes requiring ATP as an immediate source of energy * The movement of water across membranes by osmosis and the effects that solutions of different water potential can have on plant and animal cells Module 2.1.6: Cell division, cell diversity and cellular organisation * The cell cycle * How the cell cycle is regulated * The main stages of mitosis * The significance of mitosis in life cycles * The significance of meiosis in life cycles * The main stages of meiosis * How cells of multicellular organisms are specialised for particular functions * The organisation of cells into tissues, organs and organ systems * The production of erythrocytes and neutrophils from stem cells in bone marrow If you would like to sample the quality of the lessons in this bundle, then download the following lessons as they have been uploaded for free: * The roles of enzymes and mechanism of action * Simple and facilitated diffusion * Cell specialisation and organisation
£20.00
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Module 2.1.6: Cell division, cell diversity and organisation (OCR A-level Biology A)
This lesson bundle contains 4 detailed lesson PowerPoints, which along with their accompanying resources have been designed to cover the majority of the content in module 2.1.6 of the OCR A-level Biology A specification. The lessons have been planned at length and include exam-style questions that will challenge the students on their current understanding, prior knowledge checks to encourage students to make links to previously covered topics, guided discussion points and quick quiz competitions to introduce memorable terms and values. The following specification points are covered by the resources in this bundle: * The cell cycle * How the cell cycle is regulated * The main stages of mitosis * The significance of mitosis in life cycles * The significance of meiosis in life cycles * The main stages of meiosis * How cells of multicellular organisms are specialised for particular functions * The organisation of cells into tissues, organs and organ systems * Stem cells as a renewing source of undifferentiated cells * The production of erythrocytes and neutrophils derived from stem cells in bone marrow If you would like to sample the quality of the lessons in this bundle, then download the cell specialisation and organisation lesson as this has been uploaded for free
£7.00
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