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What Are Cells? (Difference in Count (Multicellular (Organization of…
What Are Cells?
What are the functions of cells?
smallest structural/functional unit of an organism
absorb nutrients from food
cellular reperation
break down sugar
Converts to energy
create ATP
chemical used for energy
contains adenine, ribose, and 3 groups of phosphate
phosphoanhydride bonds
hydrolysis
anearobic
aerobic
Convert nutrients to energy
Digestion
Difference in Count
Unicellular
single-celled organism
Some bacteria
Amoeba
Multicellular
organism of many cells
Humans!
Organization of Cells
Organs
Made of tissues
Organ System
Organs working together
Perform a major function.
Tissues
Similar cells
Perform a specific function
Amount of cells
Mulitcellular organisms have:
Tissues,Organs, and Organ Systems
Cell Theory
The Modern Cell Theory
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energy flow inside cells
cells contain DNA
DNA passed on by cell division
activity depends on activity of cells
similar chemical composition
new ideas added to Ancient Cell Theory
molecular biology
biochemistry
similar species organisms
The Ancient Cell Theory
cells made from other cells
living things
made of 1 or more cells
functions of organisms carried out in its cells
