Eukaryotic Cell Structures & Functions Ch7.3 (Ch7 Vocabulary Guide)
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Transcript of Eukaryotic Cell Structures & Functions Ch7.3 (Ch7 Vocabulary Guide)
Eukaryotic Cell Structures & Functions
Ch7.3 (Ch7 Vocabulary Guide)
An Organelle Is:
A minute structure within
a plant or animal cell that has a particular job or function.
What are some functions that occur within a cell?
Digestion Excretion
Transportation of cell’s products
Storage Protection
Division Mobility
Respiration or Photosynthesis
Organelles found only in Plants:
Cell Walls
Cellulose
Chloroplasts
Plant Cell•Cellulose = carbohydrate found in cell walls
•Cell Wall= forms rigid outer structure, made of cellulose (fiber)
PLANT CELL
Cell wall
Large vacuole
Chloroplast
Found in both Plant and Animal Cells
Organelles that surround cells for support:
Cell Membrane= Semi-permeable,controls what enters and leaves the cell, outer containment envelope.
Cytoskeleton = gives structure to a cell (#14)
ANIMAL PLANT
Nucleus
CellMembrane
Control center for plant and animal cells:
This organelle controls cell activities and reproduction
Animal Cell
Nucleus
Nucleolus=“little nucleus”
Nucleus = control center for activities & reproduction, DNA & chromosomes housed here.
Nucleolus = contains and makes RNA
Control center for plant and animal cells:
Control center for plant and animal cells:
Chromosome = coiled DNA: contains instruc-tions for char-acteristics of an organism.
Chromatin = protein composing chromosomes
Red Blood Cells have no:
nucleus
Nuclear membrane = protects and controls what goes in and out of the nucleus (notice the nuclear pores in this picture of a nucleus)
Control center for plant and animal cells:
Ribosomes= Site of Protein Synthesis on the E.R.
Endoplasmic Reticulum
ROUND Ribosomes
Cytoplasm:or cytosol, = gel surrounds the organelles, contains enzymes
ER = Endoplasmic Reticulum:
specializes in the production & transport of lipids and membrane proteins
Rough ER has ribosomes Smooth ER lacks ribosomes
Ribosomes: Where
proteins are manufactured.
Endoplasmic Reticulum“Rough” with Ribosomes for protein synthesis
“Smooth” = Membrane “highway” For transport of materials
Golgi Bodies (aka Golgi
Apparatus):
where cell products are modified and packaged in
vesicles for export from the
cell.
“Sacks” for making & storing Secretions
Vacuole = storage for food and waterWhy are plant vacuoles larger than animal vacuoles?
Plant Vacuole
Do you see 2 Contractile vacuoles in this Paramecium?
Some Animal cell vacuoles pump water out by contracting:
Lysosome:
Contains digestive enzymes
Breaks down large molecules
Chloroplast= absorbs light, changes light energy into chemical energy for photosynthesis = GREEN Sacks
Mitochondria = site where energy is released from glucose in the form of:
The power house of the cell:
ATP