Cells Flashcards
an instrument for viewing small objects
microscope
the smallest unit of life. They are the building blocks of living things
cells
instrument for viewing very small objects. They can magnify things up to 1500 times.
light microscopes
instrument for viewing very small objects. They are much more powerful than a light microscope and can magnify things up to a million times.
electron microscopes
describes a microscope through which the specimen is seen using one eye only
monocular
a microscope with two eyepieces, so you use both eyes to look at the object
binocular
describes a microscope through which the specimen is viewed using both eyes
stereo
the number of times the image of an object has been enlarged using a lens or lens system.
magnification
describes an organism having only one cell
unicellular
having many cells. Most plants and animals are…
multicellular
a length of one millionth of a metre
micrometre (µm)
a unit of measurement equal to one billionth of a metre
nanometre (nm)
a rapidly developing field that includes studying cells and other objects of the smallest dimensions
nanotechnology
organism classified as belonging to the Prokaryotae kingdom
Prokaryotes
member of the group of organisms that has a membrane around the nucleus in each of their cells
eukaryote
structure that encloses the contents of a cell and allows the movement of some materials in and out
cell membrane
the fluid found inside cells
cytosol
small structures within a cell in which proteins such as enzymes are made
ribosomes
the jelly-like material inside a cell
cytoplasm
the chemical reactions occurring within an organism that enable the organism to use energy and grow and repair cells
metabolism
reproduction by the division of an organism into two new organisms
binary fission
the kingdom of organisms that have cells with a membrane around the nucleus but have no cell wall, large vacuole or chloroplasts
animalia