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What is life? (The Chemicals of Life (Nuclie (the chemical that instructs…
What is life?
The Chemicals of Life
The chemicals "Lipids" and "Protins" are the cells building blocks
Carbohydrates are the chemicals in cells that give energy
Most common chemical in a cell is water
The cells of all living things are composed of chemicals
Nuclie
the chemical that instructs what the cell to do
Water
Need to survive
Can only live around a few days before they die
Able to dissolve chemicals more than anything else
90% of the liquid in our blood
Response to surroundings
Stimulus
A change in a organisms surroundings makes it to react
Response
An action or change in behavoir
Growth and Development
Growth
Becoming larger
Development
Processes of change in an organisms life
Living Space
Every organism needs a living space
Limited amount of space
Animals compete for space
Cellular Organization
Cells
Basic unit of structure in an organism
Very small. To see most cells you need a microscope
Unicellular
single cell
Multi-cellular
many cells specialized to certain tasks
Energy Use
Cells must use energy
Reproduction
Closely represent their parents
Reid's experiment
1600s
Rotting meat doesn't produce flys
Pasteur's Experiment
1800's
Living things do not arise from nonliving material
Food
Need a source of energy to live
Autototrophs
Make their own food
Heyerotrophs
Cannot make their own food