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53 Cards in this Set

  • Front
  • Back
golgi body
receive materials through the endoplasmic reticulum and send them to other parts of the cell
selectively permeable
means that some substances can pass thruogh it while others cannot
small grainlike organelles that produce proteins
tiny structures that carry out specific functions within the cell
convex lens
a lens with this curved shape
a type of protein that speeds up a chemical reaction in a living thing
nucleic acids
very large organic molecules made of carbon, oxygen, hydrogen, nitrogen, and phosporus....contain the instructions that cells need to carry out all the functions of life
large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and in some cases..sulfur
a large oval structure that directs all of the cell's activities
fats, oils, and waxes... energy rich(more than carbohydrates)
the ability to make things lood larger than they are
one of the cell membrane's main functions
it control what substances come into and out of a cell
an instrument that make small objects look larger
the region between the cell membrane and the nucleus
what are the organelles functiond
produce energy, build and transport materials, and store and recycle wastes
two kinds of nucleic acids
what invention made it possible for people to discover and learn about cells?
the basic unit of structure and function in lining things
What is needed for chemical reactions to happen within cells
the genetic material that carries information about an arganism that is passed from parent to offspring
rod shaped organelles produce most of the energy the cell needs to carry out its functions
plays an important role in the production of proteins
storage area that stores food, water, wastes, and other materials
thin strands that contain genetic material, the instruction that direct the function of the cell
capture energy from sunlight and use it to produce food for the cell, gives plants green color
the organelles where proteins are made
compound microscope
a light microscope that has more than one lens
the smalles unit of most compounds
what are the three methods of getting into and out of cells
diffusion, osmosis, or active transport
two or more elements combined chemically
the process by which molecules tend to move from an area of higher concentration to an are a of lower concentration
cell membrane
plant cell.. located just inside the cell wall
animal cell.. forms the outside boundary that seperates the cell from its enviroment
organice compound
compounds that contain carbon
the smalles unit of an element
endoplasmice reticulum (ER)
organelle passageways that carry proteins and other materials from one part of the cell to another
passive transport
movement of materials through a cell membrane without using energy
cell theory
1. all living things are made up of cells
2. cells are the basic unit of structure and function in living things
3. all cell come from other cells
active transport
the movement of materials through a cell membrane using energy
what is the difference betweent active and passive transport?
active transport requires the cell to use energy and the passive transport does not
diffusion of water molecules through a selectively permeable membrane
and energy- rich organic compound made of the element carbon, hydrogen, and oxygen
amino acids
smaller molecules than protein molecules...there are 20 kinds
cell wall
a rigid layer of nonliving material that surrounds a plant cell
any substance that cannot be broken down into simpler substances
what do animal cells and plant cells have that the bacterial cells do not have.
a nucleus
which kind of cell is smallest of the other cells?
bacterial cell
contain chemicals that break down large food particles into smaller ones
where ribosomes are made
what are 4 inorganic compounds a which is the exception
water, sodium chloride, table salt
exception...carbon dioxide
inorganic compound
compounds that do not contain carbon
the most important groups of organic compounds found in living things?
carbohydrates, lipids, proteins, nucleic acids
the ability to clearly distinguish the individual parts of an object
how do the lens or lenses in a light microscope magnify an object?
by bending the light that passes through them