Chapter 3 Words Flashcards
Electron Microscope
Like a light microscope but can identify and magnify electrons instead of light cells
Monocular
A scope that can identify objects from faraway.
Binocular
A binocular can scope out things from faraway
Magnification
The process of an object being magnified.
Unicellular
An organism that has one cell
Multicellular
An organism that has more than one cell
Micrometer
A length of one millionth of a metre
Nanometer
A unit of measurement equal to one billionth of a metre
Nano Technology
A rapidly developing field that includes studying and investigating cells and other objects of the smallest dimensions
Prokaryote
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
structure that encloses the contents of a cell and allows the movement of some materials in and out
Cytosol
The fluid in the cells
Ribosomes
Small structures within a cell in which proteins such as enzymes are made
Cytoplasm
the jelly-like material inside a cell. It contains many organelles such as the nucleus and vacuoles
Metabolism
the chemical reactions occurring within an organism that enable the organism to use energy and grow and repair cells
Binary Fission
reproduction by the division of an organism (usually a single cell) into two new organisms
Animalia
the kingdom of organisms that have cells with a membrane around the nucleus, but no cell wall, large vacuole or chloroplasts
Plantae
the kingdom of organisms that have cells with a membrane around the nucleus, cell wall, large vacuole and chloroplasts, commonly called plants
Fungi
the kingdom of organisms, such as mushrooms and moulds, that help to decompose dead or decaying matter
Protoctista
the kingdom of organisms, including algae and protozoans, that do not fit into other groups
Prokaryote
the kingdom of organisms that consist of single cells with a nucleus not surrounded by a membrane or a cell wall, commonly called bacteria
Mitochondria
Small rod-shaped organelles that supply energy to other parts of the cell. They are usually too small to be seen with light microscopes. Singular = mitochondrion.
Cellular Respiration
The chemical reaction involving oxygen that moves the energy in glucose into the compound ATP. The body is able to use the energy contained in ATP.
Photosynthesis
the food-making process in plants that takes place in chloroplasts within cells. The process uses carbon dioxide, water and energy from the sun.
Chlorophyll
The green-coloured chemical in plants that absorbs the light energy used in photosynthesis to make food from carbon dioxide and water
Light Microscope
A light microscope can identify and magnify light cells
