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30 Cards in this Set

  • Front
  • Back
cell
the basic unit of structure qand function in living things
microscope
an instrument that makes small objects look larger
cell theory
states all living things are composed of cells, what cells are, all cells are produced from other cells
magnification
the ability to make things look larger than they are
convex lens
the center of the lens is thicker than the edges, it has a cirved shape
resolution
to clearly distinguish the individuual parts of an object
organelle
tiny structures in a cell
cell wall
a ridgid layer of nonliving material that surrounds the cells of plants and some other organisms
cell membrane
control what substances come into and out of a cell
nucleus
the cells main control center
chromatin
strands that contain the genetic material, the instructions that direct the function of a cell
cytoplasm
the organelles funtion to produce energy, build and transport needed materials and sore and recycle wastes
mitochondria
produce most of the energy the cell needs to carry out its functions
endoplasmic reticulum
carry proteins and other from one of the cell to another
ribosomes
release some proteins throught the wall of the endoplasmic reticulum
golgie bodies
cells main room they receive proteins and other newly formed materials and distribute them to other cells
chlorplasts
capture energy from sunlight and use it to produce food for the cell
vacuole
storage area of the cell
lysosomes
small roundstructures that contain chemicals that break down large food particles into smaller ones
element
any substances that cant be broken down into simpler substances
atom
smallest unit of an element
compound
when two or more elements combine chemically
molecule
smallest unit of a compound
carbohydrate
an energy-rich organic compound made of the elements carbon, hydrogen and oxygen
protein
large organic molecules made of carbon, hydrogen oxygen nitrogen and sulfur
enzyme
type of protoein that speeds up a chemical reaction in a living thing
lipid
use energy rich organic compunds made of carbon, hydrogen and oxygen
nucelic acids
very large organic molecules made of carbon and oxygen, hydrogen nitrogen and phosphorus
DNA
genetic material that carries information about an organism that is passed from parent to offspring
RNA
important role in the produciton of proteins it is found in the cytoplasm