Quizlet

Flashcards: Science PSSA

Instructions

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  2. Fold each page down the middle along the solid vertical line.
  3. Cut along the dotted horizontal lines.
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Organellesthe tiny peices inside a cell
endoplasmic reticulumtransports materials in the cell
nucleuscontrol center of the cell
nuclear membraneencloses and protects the nucleus
cytoplasmthink fluid that holds all of the parts of the cell
cell wallOnly in plant cells- protects the plant cell, and gives it shape
mitochondriaenergy makers / powerhouses of the cell
chloroplastscontain chlorophyll in a plant cell
vacuolescontain fluid and coloring for the cell
cell membranecontrols movement in and out of the cell
ribosomesmake the enzymes that produce proteins for the cell
unicellularone cell
multicellularmade up of more than one cell
tissuescells put together make up these
organstissues put together
organ systemsorgans put together
homeostasismaking the inside enviroment the same
phenotypethe outside expression of a gene (what you look like)
allelescopies of a gene
genotypewhen you find out which sets of genes you have from your parents
homozygoustwo identical alleles for the same trait
heterozygous2 different alleles for a trait
pedigreetracing a gene back from generation to generation (a family tree of your genes)