This detailed lesson describes the key structural features of a prokaryotic cell and compares these against the structures of an eukaryotic cell. The engaging PowerPoint and accompanying resources have been designed to cover specification points 1.2 (d) & (e) as detailed in the CIE International A-level Biology specification and describes how the size and cell structures differ as well as the additional features that are found in some prokaryotic cells and briefly introduces binary fission.
A clear understanding of terminology is important for A-level Biology so this lesson begins with a challenge, where the students have to recognise a prefix that they believe translates as before or in front of . This leads into the discovery of the meaning of prokaryote as before nucleus and this acts to remind students that these types of cell lack this cell structure. Links to the previous lessons on the eukaryotic cells are made throughout the lesson and at this particular point, the students are asked to work out why the DNA would be described as naked and to state where it will be found in the cell. Moving forwards, the students will discover that these cells also lack membrane bound organelles and a quick quiz competition challenges them to identify the specific structure that is absent from just a single word. In addition to the naked DNA, students will learn that there are also ribosomes in the cytoplasm and will discover that these are smaller than those found in the cytoplasm of an eukaryotic cell (but the same size as those in chloroplasts and mitochondria). The remainder of the lesson focuses on the composition of the cell wall, the additional features of prokaryotic cells such as plasmids and there is also the introduction of binary fission as the mechanism by which these organisms reproduce
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Topics 1 & 2: Cell structure & Biological molecules (CIE A-level Biology)
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£20.00
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Topic 1: Cell structure (CIE A-level Biology)
As Biology is the study of living organisms which are built out of cells, a clear understanding of the topic of cell structure is critical for a student's success in A-level Biology. Intricate planning has gone into all 7 of the lessons included in this bundle and the variety of tasks will engage and motivate the students whilst the details of the following specification points in topic 1 of the CIE A-level Biology course are covered: **Topic 1.1: The microscope in cell studies** * Use an eyepiece graticule and stage micrometer to measure cells * Use of the millimetre, micrometre and nanometre * Distinguish between resolution and magnification * The use of light and electron microscopes * Calculate the actual sizes of specimens **Topic 1.2: Cells as the basic units of living organisms** * Recognise eukaryotic cell structures and outline their functions * State that ATP is produced in the mitochondria and the chloroplast and the role of this molecule in cells * The structure of a typical prokaryotic cell * The differences between eukaryotic and prokaryotic cells * The key features of viruses If you would like to sample the quality of these lessons, download the magnification and resolution lesson, the eukaryotic cell structures lesson and the viruses lesson as these have been shared for free
£7.00
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CIE A-level Biology Topic 1.2: Cell as the basic units of living organisms
A deep understanding of the topic of cells is crucial for the success of any A-level Biologist and these lessons not only provide the depth of detail needed at this level but also make links to the upcoming 18 topics in the CIE course. Contained within the 4 lesson PowerPoints and multiple resources that are included in this bundle are a wide range of activities to motivate and engage the students whilst they cover the content as detailed in topic 1.2 of the CIE A-level Biology specification. The majority of the resources are differentiated to allow students of differing abilities to access the work and to be challenged at all times. The following specification points are covered in this bundle: * The relationship between the structure and function of the structures of eukaryotic cells * The structure and role of ATP in cells * The structural features of prokaryotic cells * Comparing eukaryotic and prokaryotic cells * The key features of viruses as non-cellular structures If you would like to sample the quality of these lessons, then download the eukaryotic cell structures and functions and viruses lessons as these have been shared for free
£3.50
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