The Vital Role of ATP All organisms require a?constant supply of energy?to maintain their cells and stay alive This energy is required: In?anabolic?reactions – building larger molecules from smalle...
Electron Micrographs: Animal Cells TEM electron micrograph of an animal cell showing key features Exam Tip You should be able to describe and interpret photomicrographs, electron micrographs and dr...
Calculating Actual Size When investigating the size of organisms and biological structures you will use a microscope of a specific magnification to produce an image Photomicrographs?are images obta...
Resolution & Magnification Magnification Magnification is how many times bigger the image of a specimen observed is in compared to the actual (real-life) size of the specimen A?light microscope...
Eyepiece Graticules & Stage Micrometers An?eyepiece graticule?and?stage micrometer?are used to measure the size of the object when viewed under a microscope Each microscope can vary slightly so...
Magnification Calculations Magnification?is?how many times bigger?the image of a specimen observed is in comparison to the actual (real-life) size of the specimen The?magnification?(M) of an object...
Microscope Slide Preparation In order to observe cellular material in more detail, specimens can be prepared for viewing under a light microscope Samples need to be thin?enough to allow light to pa...
Using a Large Data Set What is a large data set? As part of your course there is a large data set that you can use It contains lots of information You are not expected to memorise any results from ...
Normal Hypothesis Testing How is a hypothesis test carried out with the normal distribution? How is the critical value found in a hypothesis test for the mean of a normal distribution? What steps s...
