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Biology 2BIO1 B2 Topic 1




B1
Biology Cells

B2 Topic 1 DNA

Enzymes
Topic 2
Science B3 Topic 3



Chemistry
Physics




Cells - basic units of life in which many chemical reactions needed to sustain
life.




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Page 2

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Biology 2BIO1 B2 Topic 1



Complete the diagrams - adding notes on
the functions of each organelle




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Page 3

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Biology 2BIO1 B2 Topic 1




Mitochondria Organelles in which respiration takes place. Plant and
Oxygen and glucose react together to release animal cells
energy needed by the cell




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Page 4

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Biology 2BIO1 B2 Topic 1


Bacterial Cells

Bacteria are single celled organisms that are much
smaller than animal or plant cells.




Describe the function of the components of the bacterial cell




Chromosomal DNA - giant loop of DNA contains most of the genetic
material it is not neatly packaged inside…

Page 5

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Biology 2BIO1 B2 Topic 1

Microscopes
Microscopes are used to magnify small 'stuff' and allow us
to study them in detail.
Electron microscope
Light microscope
· x2000000
· x1500 (combination of
· invented in 1930's
eye piece and objective
lens) · uses beams of
· require light to reflect off…

Page 6

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Biology 2BIO1 B2 Topic 1


What are the advantages of the electron microscope compared
to a light microscope?




A specimen appears 1 mm in length under the light microscope
at a magnification of 1500×. What is its actual length?




What length would the specimen in part a appear under the…

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Biology 2BIO1 B2 Topic 1



Stem Cells




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Page 8

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Biology 2BIO1 B2 Topic 1




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Page 9

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Biology 2BIO1 B2 Topic 1




B1
Biology Cells

B2 Topic 1 DNA

Enzymes
Topic 2
Science B3 Topic 3



Chemistry
Physics




9

Page 10

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Biology 2BIO1 B2 Topic 1


DNA Molecule

Genes contain
different combinations
of the 4 nucleotides




Label the diagram




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