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Glossary of Chapter3 Cells

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What elements are cells made of?
hydrogen, carbon, nitrogen, oxygen & other trace elements
Name the three main parts of a cell
plasma membrane
cytoplasm
nucleus
What is the function of the plasma membrane
separates intracellular fluid from extracellular fluid
What is the fluid mosaic model?
a double-layered lipid molecule with protein molecules interspersed
What is contained in the lipid bilayer of the plasma membrane?
phospholipids
cholesterol
gylcolipids
What does microvilli do and where in the body is it found?
increases absorbtion area and can be found in the digestive system
What is the glycocalyx and what is one of its functions?
sticky sugar coating / cell regonition
What are the three special membrane juntions and in which organs can they be found?
tight-stomach
desmosome -skin
gap-heart
Osmosis
solvents(water) go from high concentration area to low
diffusion
things diffuse down a concentration gradient to become equal
What are the forms of passive transport?
diffusion, facilitated diffusion, osmosis, filtration
what are the nucleotide bases of RNA?
AGCU
What are the nucleotide bases of DNA?
AGCT
Name the stages of mitosis
interphase, prophase, metaphase, anaphase, telophase, cytokinesis
3 parts that make up the cytoskeleton
microtubule, microfilaments, intermediate filaments

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