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Organelles
name, structure, function, where they are found
16
Biology
10th Grade
11/15/2009

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Term
plasma membrane
Definition
both
prok + euk- phospholipid bilayer- outer boundary of many cells.
controls materials entering/ leaving cell
Term
rough endoplasmic reticulum
Definition
both/ all euk-
network of membranes/ folded membrane- aids in processing of proteins
Term
smooth endoplasmic reticulum
Definition
Both/ all euk- ? -
Site at which potentially harmful substances are dtoxified/ site of synthesis of various lipids
Term
central vacuole
Definition
plant cells, others have vacuoles,- large. watery-
storage of nutrients....retention/ degradation of waste products,,,,, support
Term
cell walls
Definition
plant cells/ algae/ fungi-
thick/ 7 um or more- outer protective lining of plant cells /
support
Term
chloroplast
Definition
plant cells/ algae-
double membrane-
site of photosynthesis in plant and algae cells
Term
ribosomes
Definition
both, prok + euk-
made of rRNA. bound or free-
site of protein photosyn
Term
nucleus
Definition
both-
membrane lined compartment-
encloses primary complement of DNA in eukaryotic cells
Term
nucleolus
Definition
both/ all eukaryotes-
dark, mid of nucleus-
produces ribosomal RNA
Term
mitochondria
Definition
both/ all eukaryotic cells- ? -
primary sites of energy conversion within eukaryotic cells
Term
lysosomes
Definition
animal cells-
membrane/ acidic ph-
digests wornout cell matter and foreign materials that enter the cell
Term
golgi complex
Definition
both-
network of membranes- processes/distributes proteins
Term
cytosol
Definition
both-
jelly like/water and enzymes-
immerses organelles outside of nucleus/ gives needed enzymes
Term
microtubules
Definition
both-
hollow tubes-structural role in cells= determines shape/ movement, make cilia/ flagella
Term
microfilaments
Definition
both, all organisms-
most slender, actin protein molecule- cell structure/ support-
Term
vesicles
Definition
all cells
transport around cell
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