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Science Test Dec2017

TermDefinition
Cell Theory All living things are made of cells; cells are the basic unit of structure and function of living organisms; cells come from other cells.
Cell Wall Plant cells only, provides support for the cell and plant
Cell Membrane Regulates materials entering and exiting the cell
Nucleus "Control center"; regulates DNA and RNA actions
Mitochondira Produces energy of the cell; site of cellular respiration; "the powerhouse of the cell"
Vacuoles Storage for water, nutrients, and waste
Lysosomes Packets of enzymes that break down materials in a cell
Ribosomes Makes proteins
Golgi Bodies Packages, labels, and ships proteins out of the cell
ER Transportation route for proteins
Smooth ER No ribosomes
Rough ER Has ribosomes
Chloroplasts Plants only - the site of photosynthesis
Photosynthesis The conversion of sun and CO2 into sugar
Chromosomes Organized DNA, present before cell division
Chromatin Unorganized DNA
What is the difference between plant and animal cells? Plant cells contain chloroplasts and cell walls, animal cells do not.
Osmosis Diffusion of water molecules across a selectively permeable membrane
Passive transport Diffusion of a substance across a biological membrane
Active transport Requires that a cell expends energy to move molecules across a membrane
Created by: noarca
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