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AS AQA Biology Topic 2- Test Questions and Answers 100% Pass
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AS AQA Biology Topic 2- Test Questions and Answers 100% Pass
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AS AQA Biology Topic 2- Test Questions and Answers100% Pass
Ultracentrifugation Correct Ans-The second stage of cell fractionation when the fragments
in filtered homogenate are separated in a machine called a centrifuge.
Graticule Correct Ans-A series of lines on a microscope which can be used to calculate the
size of objects.
Eukaryote Correct Ans-A cell that has a membrane-bound nucleus and chromosomes. The
cell also possesses a variety of other membrane-bound organelles, such as mitochondria and
endoplasmic reticulum.
Organelle Correct Ans-A part of a cell.
Nucleus Correct Ans-Organelle which contains the hereditary material (DNA) which codes
for she synthesis of proteins in cytoplasm.
, AS AQA Biology Topic 2- Test Questions and Answers
100% Pass
Mitochondria Correct Ans-Organelle where energy is released in aerobic respiration
Chloroplast Correct Ans-Organelle that is the site of photosynthesis
Rough endoplasmic reticulum (RER) Correct Ans-Organelle which provides a large surface
area for the synthesis of proteins and glycoproteins and where proteins are transported that
are synthesised on ribosomes.
Smooth endoplasmic reticulum (SER) Correct Ans-Organelle where lipids and
carbohydrates are synthesized, stored and transported.
Magnification Correct Ans-the number of times bigger the image/drawing is compared to
the object/real size
, AS AQA Biology Topic 2- Test Questions and Answers
100% Pass
Resolution Correct Ans-the minimum distance needed to differentiate between 2 adjacent
objects
Micrometer Correct Ans-1x10-6 m
Nanometer Correct Ans-1x10-9 m
Light microscope Correct Ans-A type of microscope which has a condenser, objective lens
and eyepiece lens and light is passed through the thin specimen an up through the objective
and eyepiece lenses to the eye.
Electron microscope Correct Ans-Beams of electrons are used to visualize structures in a
vacuum. Electrons have a smaller wavelength than light so electron microscopes have a
higher resolution than light microscopes.
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