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What is cell Theory?
All living Organisms are composed of cells.
Cells are a basic unit of life.
Cells arise from pre-existing cells.
What does MRS GREN stand for?
M- movement
R- reproduction
S- sensitivity
G- growth
R- respiration
E- exrection
N- nutrition
Movement
All living things move. Even plants move.
They move very slowly by growing in certain directions.
Plants can grow towards the light.
Even microscopic organisms like bateria show signs of movement.
Reproduction
All organisms need to reproduce to keep the species going so they do not all die out.
Humans like Animals produce babies.
Microbes reproduce by simply dividing into two.
Sensitivity
Organisms need to be aware of their surroundings.
This helps them to keep out of danger.
we sense our surroundings by our 5 senses.
Plants can sense where light is coming from so they can adapt and develop.
Growth
All living things grow and get bigger.
From a tiny baby we all grow up into adults.
From a seed a tree can grow.
Even microbes grow, though not every much.
Respiration
All organisms need energy so they can do thinngs like move and grow.
Respiration releases energy from food so we can do things.
All organisms need to respire to get energy.
Author
Rach
ID
279953
Card Set
cells
Description
cell
Updated
7/30/2014, 12:06:44 AM
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