Term | Definition |
microorganism | an organism that is microscopic, or not visible to the unaided eye |
microbe | another term for a microscopic organism |
unicellular | are single celled organisms |
binary fission | is a type of asexual reproduction in which the organism divides in two |
conjugation | is a process in which organisms fuse |
budding | some fungi, such as yeast, reproduce asexually |
cell | is a basic unit of life and the smallest part of a living thing that is capable of life |
tissue | a group of similar cells that work together to preforms the same function |
organ | is a group made of two or more types of tissue that work together to carry out one specific function |
organ system | a group of organs working together |
passive transport | is the movement of substances through membranes without the use of the cells energy |
osmosis | is the movement of water particles through a membrane |
cellular resperation | plants and animals use the energy from glucose |
active transport | when energy is required to move materials through a cell membrane |
cell cycle | others divide and produce new cells, replacing dead cells |
mitosis | as the cells nucleus each cell receives a full set of chromosomes |
zygote | two cells join to form a single cell |
meiosis | the nucleus of a cell divides twice |
fertilization | occurs when a sperm cell joins an egg cell |