Cells Flashcards
Cells
Cells are the building blocks of life and come in many different shapes and sizes. Cells are found in living organisms such as plants, animals and others
Light microscope
instrument for viewing very small objects. A light microscope can magnify things up to 1500 times.
Electron microscope
instrument for viewing very small objects. An electron microscope is much more powerful than a light microscope and can magnify things up to a million times.
Monocular
Monocular: describes a microscope through which the specimen is seen using one eye only
Binoculars
Binocular: a microscope with two eyepieces, so you use both eyes to look at the object
Stereo
describes a microscope through which the specimen is viewed using both eyes
Magnification
the number of times the image of an object has been enlarged using a lens or lens system. For example, a magnification of two means the object has been enlarged to twice its actual size.
Microscope
A instrument used to view small objects
Unicellular
A Noam with only one cell
Multicellular
A plant or organism with more then one cell
Micro metre
A length that is one millionth of a metre
Nano metre
One millionth of one metre
Nanotechnology
A field of science where they study cells and objects of small dimensions
Prokaryotes
organism classified as belonging to the Prokaryotae kingdom
Eukaryotes
member of the group of organisms that has a membrane around the nucleus in each of their cells
Cell membrane
The structure that contains the content of the cell
Cytoskeleton
The fluid found inside a cell
Ribosomes
A cell that has a structure that holds in proteins
cytoplasmic
A jelly like substance within a cell
metabolism
A reaction in which triggers a organism to use energy and grow to repair its cells
Animalia
The kingdom of organisms that have cells with a membrane around the nucleus, but no cell wall, large vacuole or chloroplasts
Plantae
Plants
Nucleus
central part of an atom, made up of protons and neutrons. Also roundish structure inside a cell that acts as the control centre for the cell
Chromosome
tiny, thread-like structure inside the nucleus of a cell. Chromosomes contain the DNA that carries genetic information.
DNA
a variable that is expected to change when the independent variable is changed. The dependent variable is observed or measured during the experiment.
Mitosis
cell division process that results in new cells with the same number of chromosomes as the original cell