This lesson explains how to calculate the mitotic index and then explores what a high value may indicate about the tissue that was sampled. The PowerPoint and accompanying resources are part of the 2nd lesson in a series of 3 which have been planned to cover the content of point 2.2 of the AQA A-level biology specification.
As shown in the cover image, the lesson begins with a bit of fun, as the students are challenged to use three clues to identify three uses of the term index in biology. They’ll learn that the index of diversity is covered in a topic 4 lesson and that this lesson focuses on the mitotic index. The students are challenged on their knowledge of the mitotic cell cycle throughout the lesson and one of these questions is used to introduce the meaning of the index and the formula. A series of exam-style questions challenge them to apply their understanding, and the answers are embedded into the PowerPoint to enable the students to assess their progress. Moving forwards, the different meanings of high values are considered, including growing and repairing tissues, and then to explain how an elevated mitotic index can indicate that cell division has become uncontrolled. This prepares students for the next lesson where tumour formation and cancer will be covered.
Get this resource as part of a bundle and save up to 30%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Bundle
Topic 2: Cells (AQA A-level Biology)
This bundle contains 20 PowerPoint lessons, and all are highly-detailed and are fully-resourced with differentiated worksheets. Intricate planning means that the wide range of activities included in these lessons will engage and motivate the students, check on their current understanding and their ability to make links to previously covered topics and most importantly will deepen their understanding of the following specification points in topic 2 (Cells) of the AQA A-level Biology specification: * Structure and function of the organelles in eukaryotic cells * The specialised cells in complex, multicellular organisms * The structure of prokaryotic cells * The structure of viruses which are acellular and non-living * Measuring objects under an optical microscope * Use of the magnification formula * The principles of cell fractionation and ultracentrifugation * The behaviour of chromosomes during the stages of the cell cycle * Calculating the mitotic index * Uncontrolled cell division leads to the formation of tumours and cancer * Binary fission * The basic structure of cell membranes * The role of phospholipids, proteins, glycoproteins, glycolipids and cholesterol * Simple diffusion * Facilitated diffusion * Osmosis, explained in terms of water potential * The role of carrier proteins and the hydrolysis of ATP in active transport * Co-transport as illustrated by the absorption of sodium ions and glucose by the cells lining the mammalian ileum * Recognition of different cells by the immune system * The identification of pathogens from antigens * The phagocytosis of pathogens * The cellular response involving T lymphocytes * The humoral response involving the production of antibodies by plasma cells * The structure of an antibody * The roles of plasma cells and memory cells in the primary and secondary immune response * The use of vaccines to protect populations * The differences between active and passive immunity * The structure of the human immunodeficiency virus and its replication in helper T cells * Why antibiotics are ineffective against viruses * The use of antibodies in the ELISA test If you would like to sample the quality of these lessons, then download the eukaryotic animal cells, viruses, osmosis, lymphocytes, HIV and AIDS lessons as these have been shared for free. I have also uploaded lessons on optical microscopes and HIV and AIDS (for free) but neither are included in this bundle as the limit of 20 resources has been reached!
£30.00
Bundle
Topic 2.2: All cells arise from other cells (AQA A-level biology)
The 3 lessons in this bundle are detailed and engaging and use regular understanding checks (with answers embedded into the PowerPoints) to enable the students to assess their progress. The lessons have been planned to cover these points from topic 2.2 of the AQA A-level biology specification: * Eukaryotic cells show a cell cycle * DNA replication occurs during interphase of the cell cycle * Mitosis is part of the cell cycle * The behaviour of chromosomes in interphase, prophase, metaphase, anaphase and telophase * Division of the cytoplasm during cytokinesis produces two new cells * Calculation of the mitotic index * Uncontrolled cell division leads to the formation of tumours and cancer
£6.50
Bundle
Maths in A-level Biology (AQA A-level Biology)
"Overall, at least 10% of the marks in assessments for biology will require the use of mathematical skills" This sentence is taken directly from the AQA A-level Biology specification and clearly shows that being able to apply these skills in the context of biology will have a significant impact on a student's chances of success. This bundle has been created to cover as much of those mathematical skills as possible A revision lesson is also included in this bundle which acts as a fun and engaging revision of the range of calculations
£15.00
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