vocab
cell
what English scientist used a microscope to examine a think slice of cork
Robert Hooke
is a cell the smallest unit that cna carry on all of the processes of life ?
True
can a cell survive if its totally isolated from its environment ?
no it cannot .
in most multicellular organism , cells are organized into ?
tissues
_______ is a cell component that performs specific functions for the cell.
Organelles
First person to observe living cells was ?
Anton van Leeuwenhoek
A cells shape does not reflect its function?
false , the shape of the cells contributes to its function.
Function of a Ribosome
organizes the synthesis of proteins
several types of tissues that interact to erfom a specific functions from an
Organ
_______ is a collection of genetically identical cell that live together in a closely connected group
Colonial organism
what are the 3 types of cells ?
nerve, skin and white blood cells
plant cells contain 3 structure not found in animals
function of the cell wall
supports and protects the cell
An Organ system is made up of
A group of organs
The entire cell is surrounded by a thin membrane called
Cell membrane
The cell theory has three parts: name 2 of the 3
All living things are composed of one or more cells
cells are the basic unit of structure and function in an organism
cell come only from the reproduction of exiting cells.
is the cell the most multicellular organism which is composed of tissues, organs and organ system ?
true
just like your body depends on your skeleton to maintain its shape and size so does a cell what keeps its shape and size ?
Cytoskeleton
true or false : fossil evidence suggest that the earliest cells on Earth were simple prokaryotes similar to some present day bacteria .
true
Plant cells are covered by a rigid
Cell Wall.
whose cells contain a membrane bound nucleus and other organelles are called ?
Eukaryotes
Most plant and animal cells are only about 20 to 60 um in diameter
false it is about 10 to 50
what helps organelles move its hairlike that extends from the surface
Cilia and flagella
Many biologist believe that animal, plants and fungi probably evolved from different varieties of
Colonial Organisms