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Chapter 3 - Cells


___ is the most abundant protein of the body collagen
water follows ___ solute
chemical messengers come in the form of __ or ___ proteins, fats
solute + solvent = solution
crenation when cell shrinks
hydrolysis when cell bursts
isotomic same concentration of solute in & out of cell
hypertonic excessive solute outside of solution
hypotonic excessive solute inside of solution
DNA double stranded nucleic acid that comes up with hereditary info
mRNA carries transcript of code to cytoplasm
rRNA forms ribosomes
tRNA moves amino acids to ribosomes then decodes mRNA msg for amino acid sequence
Uracil exists only in ___ RNA
transcription transfers information from DNA sequence to complementary sequence
translation nucleic acids are translated to proteins
2 major steps of protein synthesis are: transcription & translation
gap junctions helps pass things through more easily
tight junctions helps prevent molecules from passing through
desmosones holds skin cells together
passive transport things cross the membrane w/o energy
active transport cell provides energy to move things across membrane
osmosis movement of WATER from high to low concentration
diffusion movement of particles from high to low concentration
selectively permeability membranes that allows some material to pass through, not others
a human cell has 3 main parts: cytoplasm, plasma membrane, nucleus
endocytosis cell enters
exocytosis cell exits
aquaporins allow: diffusion of water molecules
facilitated diffusion movement is controlled by a protein, increases rate of diffusion
hydrophobic water fearing - nonpolar
hydrophilic water loving - polar
polar heads are attracted to: water
nonpolar tails are attached to: the membrane
Created by: Mariahj25