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science
random stuff
28
Biology
9th Grade
10/31/2011

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Cards

Term
Anton Von Leeuwenhoek
Definition
1st person to observe and describe microrganisms and constructed the 1st microscope
Term
Robert Hooke
Definition
1600's observed 1st plant cell from cork, coined the term cells from the cells of a monestary
Term
Robert Brown
Definition
observed that many cells have a dark structure near the center of the cell, now called the nucleus
Term
Matthias Scheledien
Definition
german botanist, observed that all plants are made of cells
Term
Thedor Schwan
Definition
german cytologist and physiologist, concluded that all animals are made of cells
Term
Rudolf Virchow
Definition
concluded that all cells arise from preexisting cells
Term
cell theory (3 things)
Definition
all living things are made of cells, cell are the basic units and structures in living things, all cells come from existing cells
Term
facilitated diffusion
Definition
larger substance passes through the membrane with the help of a facilitator
Term
active transport
Definition
movement from an area of high to low concentration, uses cell enery
Term
passive transport
Definition
high to low
Term
active transport (2)
Definition
concentration gradient : low to high
Term
salt sucks
Definition
salt/ water, solutes never move
Term
mitochondria
Definition
power house of the cell
Term
ribosomes
Definition
synthesis of protiens
Term
choloplast
Definition
captures the energy from sunlight and converts it into chemical energy, found only in plants, helps with photo synthesis
Term
eukaryotic
Definition
membrane bound organells, more complex
Term
prokaryotic
Definition
no membrane bound organelles, less complex
Term
similarities
Definition
required for thingss to live, contain DNA
Term
photosynthesis
Definition
light, CO2, water
Term
only in plants
Definition
large vacuoles,cell wall, cholorplast, square shape
Term
only in animal
Definition
lysosomes, centrioles, round, small vacuoles
Term
cell membrane
Definition
composed of the lipid bilayer
Term
osmosis
Definition
diffusion of water through a selectively permeable membrane
Term
iso
Definition
equal
Term
hyper
Definition
more
Term
hypo
Definition
less
Term
pincoytosis
Definition
cell drinking
Term
phagocyotosis
Definition
cell eating
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