Cells UNIT EXAM
selectively permeable
allows some substance through; does not let other substances through
nucleus
control center of the cell; contains DNA
respiration
converting glucose into ATP energy
photosynthesis
converting sunlight into glucose
DNA
deoxyribonucleic acid; genetic blue print
lysosome
digests waste in cell
cancer
disease of abnormal cell divison
mitosis
division of the nucleus; part of cell division
equilibrium
equal amount of substances on either side
variable
factor being measured by an experiment
line graph
graph used to show change over time
chlorophyll
green pigment that captures sunlight for photosynthesis
X axis
horizontal axis, holds independent variable
cytoplasm
jelly-like substance that supports organelles in cell
multicellular
made of many cells
unicellular
made of only one cell
passive transport
movement of substances across a membrane without the use of energy
diffusion
movement of substances from high concentration to low concentration in order to create equilibrium
osmosis
movement of water molecules across a semi-permeable membrane from an area of high concentration to an area of low concentration in order to create equilibrium
active transport
moving materials across the cell membrane by using ATP energy
reproduction
offspring produced by parent(s)
chloroplast
organelle in plant cell; captures sunlight for photosynthesis
golgi bodies
packages and modifies proteins for transport
mitochondria
powerhouse of the cell; converts glucose into ATP energy
cell division
process by which a cell duplicates
ribosomes
produce proteins
cell membrane
protects cell; controls what enters and exits cell
cell wall
protects plant cell; maintains shape
gene
segment of DNA that codes for a certain trait
vacuole
storage of nutrients and water
chromosome
tightly coiled segment of DNA; humans have 46
repair
to fix or mend
endoplasmic reticulum
transports materials throughout the cell
unit of measure
unit which the variable is measured
Y axis
vertical axis, holds dependent variable