Cells & cell division

Use the terms ‘eukaryotic’ and ‘prokaryotic’ to describe types of cells 
Describe the features of bacterial (prokaryotic) cells celldifferences
Demonstrate an understanding of the scale and size of cells and be able to make order of magnitude calculations, inc standard form – 

Our standard unit of length is the metre, which is a very human scale. Other measurements are made with multiples of metres, millimetres, kilometres etc.

Each division or multiplication by ten is termed an order of magnitude. Hence there is an order of magnitude between the height of a human being (2m) and the height of a pine tree (20 m).

When considering orders of magnitude the actual length may be approximated, it is the relative difference which is important.

For instance there are three orders of magnitude between a fly (1 cm) and a truck (10 m) as the truck is Equation: 1000(10 times 10 times 10)= 10^{3} times longer than the fly.

Recall the structures found in animal and plant (eukaryotic) cells  inc algal cellsDifferences_between_simple_animal_and_plant_cells_(en).svg
Use estimations and explain when they should be used to judge the relative size or area of sub-cellular structures
Required practical 1: use a light microscope to observe, draw and label a selection of plant and animal cells
Describe the functions of the structures in animal and plant (eukaryotic) cellsgcse-igcse-biology-by-syllabus-points-42-638
Describe what a specialised cell is, including examples for plants and animalsspecialised_cells_functions
Describe what differentiation is, including differences between animals and plants – 

cellular differentiation definition. The process by which a cell becomes specialised in order to perform a specific function, as in the case of a liver cell, a blood cell, or a neuron. There are more than 250 general types of cells in the human body.

Define the terms magnification and resolution
Compare electron and light microscopes in terms of their magnification and resolutionmicroscope
Carry out calculations involving magnification using the formula: magnification = size of image/ size of real object -inc standard form
Describe how genetic information is stored in the nucleus of a cell (inc genes & chromosomes)
Describe the processes that happen during the cell cycle, including mitosis (inc recognise and describe where mitosis occurs)

mitosis

Describe stem cells, including sources of stem cells in plants and animals and their rolesstem 3.gif
Describe the use of stem cells in the production of plant clones and therapeutic cloningstem cells 2
Discuss the potential risks, benefits and issues with using stem cells in medical research/treatments (inc diabetes and paralysis)stem cells

Cells quiz

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