You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Cell</strong>s<br />
<strong>Revision</strong> <strong>Notes</strong><br />
( Aldro Science Department)<br />
Unicellular organisms are those which consist of only one cell.<br />
Multicellular organisms, which includes nearly all animals and plants,<br />
consist of many cells.<br />
Typical Animal <strong>Cell</strong><br />
Cytoplasm<br />
<strong>Cell</strong> membrane<br />
Nucleus<br />
Typical Plant <strong>Cell</strong><br />
<strong>Cell</strong>ulose cell wall<br />
<strong>Cell</strong> membrane<br />
[pressed against the cell wall]<br />
Nucleus<br />
Cytoplasm<br />
Permanent vacuole<br />
Chloroplasts<br />
[contain chlorophyll for<br />
photosynthesis]<br />
Plant cells that do not photosynthesise (e.g. root cells) do not need chloroplasts.<br />
Animal cells never have a cell wall, permanent vacuoles or chloroplasts.<br />
<strong>Cell</strong> Tissue Organ Organ System Organism<br />
[A group of cells of [A group of different [A group of organs to [Whole living<br />
e.g.<br />
the same type] tissues to perform perform an overall thing]<br />
a function]<br />
function]<br />
one muscle cell Muscle tissue Heart to pump blood Circulatory system<br />
Setting up a microscope<br />
a) Light [concave mirror = light bulb]<br />
b) Object [slide]<br />
c) Side [wind down, looking at the side until just above the object]<br />
d) Focus [upwards!]
Preparing a slide<br />
a) Object in a drop of water.<br />
b) Cover slip lowered by a pencil to remove bubbles.<br />
c) Drop of methylene blue stain Stain drawn under by touching paper<br />
d) water drop Stain flooded out by water<br />
Microscope<br />
Eye piece<br />
Tube<br />
Focussing Knob<br />
Body<br />
Objective lens<br />
Slide clips<br />
Stage<br />
Mirror<br />
Stand
Change language