The building blocks of life.. Cell Theory All living things are composed of cells Cells are the...
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Transcript of The building blocks of life.. Cell Theory All living things are composed of cells Cells are the...
The building blocks of life.The building blocks of life.
Cell TheoryCell TheoryCell TheoryCell Theory
All living things are composed of cellsCells are the basic unit of structure and function
of living thingsAll cells are produced from other cells
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
Cell WallCell Wall rigid layer of nonliving
materialProvide protection &
supportFound in plant, some
bacteria, some protists and some, fungi
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
Cell membraneCell membraneThe outer layer of animal
cells, found inside cell walls (if wall is present)
Controls what enters and leaves the cell
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
NucleusNucleusDirects the cells activitiesContains DNA found on
chromatin strandsMaterials pass in and out
through the nuclear membrane
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
MitochondriaMitochondriaRod-shapedCreate energy for the cell
from foodWhy is the inside of the
mitochondria folded?
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
ChloroplastChloroplastTurn the Sun’s energy into
food through photosynthesis
They do not make energy, they convert it
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
Endoplasmic Endoplasmic ReticulumReticulum (ER) (ER)
Carry proteins and other materials through the cell
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
RibosomeRibosomeFound on ER or in the
cytoplasmProduce protein for the
cell
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
Golgi BodyGolgi BodyFlattened sacsReceive proteins and
other material, package them and ship them out
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
VacuoleVacuoleStore food water and
other materialsSmall in animal cell Large in plants
Store H2OHelp keep the plant upright
Cell AnatomyCell AnatomyCell AnatomyCell Anatomy
LysosomeLysosomeContain enzymes that
function in digestion of food and dead cell parts
Surrounded by a membrane
Animal vs. PlantAnimal vs. PlantAnimal vs. PlantAnimal vs. Plant
1. Plant cells have chloroplasts
2. Plant cells have a cell wall
3. Plant cells have a large central vacuole
4. Animal cells have more lysosomes
Specialized CellsSpecialized CellsSpecialized CellsSpecialized Cells
Red Blood CellRed Blood CellHas no nucleus so that it
can carry more oxygen
Specialized CellsSpecialized CellsSpecialized CellsSpecialized Cells
Muscle CellsMuscle CellsLong, slippery and elastic
so that they can slide past one another upon expansion and contraction
Specialized CellsSpecialized CellsSpecialized CellsSpecialized Cells
Nerve cellsNerve cellsCan be several feet long pass chemical and
electrical signals throughout the body