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organelles test prac.

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cell wall
protects the plant cell
cell membrane
allow certain materials in and out of the cell
cytoplasm
a gelatin mixture that flows inside the cell membrane
nucleus
directs all cells' activities
choloroplast
grren chlorophyll containing plant cell oraganelle that uses light energy to produce sugar from carbon dioxide or water
mitochondria
releases energy in stored food
ribosome
make proteins
Endoplasmic reticulum
moves materials around in a cell and is made up of a complex series of folded membrane
golgi bodies
oackages cellular materials and transpor them within a cell
vacuoles
store water,food,waste products, and other cellular materials
lysosome
breaks down food moleculescell wastes and worn out cell parts
organelle
structure within the cytoplasm of eukaryotic cells
tissue
same cells that work together
organ
made up of different kinds of tissues that work together
virus
a strand of hereditary material surrounded by s protein coating
host cell
cell in which a virus multiplies by itself
cell theory
summary of scientists' observations and conclusions about cells
virchow
hypothesized that cells divide to form new cells
hooke
first man to discover cells
schleiden
concluded that all plants are made of cells
schwann
concluded that all animals are made of cells
soft er
doesnt have ribosome
rough er
has ribosomes
cytoskeleton
helps support the cell and keep its shape
vaccine
made out of weakened viruses that no longer cause diseases
leeuwenhoek
founder of microscopes
eyepiece
contains magnifying lenses that u look thru
arm
supports the body tube
objectives
contains the magnification lenses
stage clips
holds the microscope slide in place
course adjustment knob
up-down
fine adjusment knob
left-right
stage
supports the microscope slide
body tube
connects the eyepiece to the revoloving nosepiece
nosepiece
holds and turns the objectives
light source
provides light that passes upward through the diapraghm, the specimen and the lenses
base
bottom part of the microscope
jenner
developed the first vaccine