Is a tiny, nonliving particle that invades & then multiplies inside a living cell.
How are Viruses organisms?
They can multiply.
Is a virus that inflects bacteria.
what are two basic parts of a virus?
a protien coat that protects the virus & a inner core made of genetic material.
is a substance introduced into the body to stimulate the production of chemicals that destroy specific disease-causing viruses & organisms.
a single-cell organsim. Bacteria is a prokaryotes.(The gentic material inn a cell does not contain a nucleus.)
A long, whiplike structure that helps a cell to move.
one cell divides to form identical cells.
Is a reproductive process that involves only one parent & produces offsprings that are identical to the parent.
to parents combine their gentic material to produce a new organism, which differs from both parents.
One bacterium tranfers some genetic material to another bacterium through a threadlike bridge.
small rounded, thick walled, resting cell that forms inside a bacterial cell containing some of the cell's genetic material and cytoplasm
the food is heated to a temperature that i high enough to kill most harmful bacteria without changing the taste of the food.
Organisms that break down large chemicals in dead organisms into small chemicals.
what are viruses not?
where can a virus multiply?
Inside a cell
a living thing that provides a scource of energy for a virus or an organism.
an organism that live on or in its host causing harm.
what do viruses almost always do?
destroy thier host cell.
what do viruses look like?
they are smaller than a cell and vary in size and shape
what shape are viruses?
some are round, but others are shaped like rods, bricks, threads, or bullets
what do complex viruses look like?
they have a complex robot-like shape
what does a viruses genetic material contain?
instructions for making a new virus
what can a virus attach to?
only a certain virus can attach to a certain cell or to a few types of cell
what size is bacteria?
it varies in size, but most are extremely small
what shape is bacteria?
spherical, rodlike, spiral
makes it own food
doesnt make it's own food.
true/false: Viruses can multiply the same way as other organisms?
false can't multiply the same way.
true/false: Each virus can enter only a few types of cells in a few specific species.
true they can