Term | Definition |
microorganism | an organism that is microscopic, or not visible to the unaided eye |
microbe | another term for a microscopic organism |
unicellular | organisms that are single-celled |
binary fission | a type of asexual reproduction is which the organism divides into two |
conjugation | a process in which the organisms fuse, or attach themselves to each other, and exchange some of their genetic information |
budding | some fungi, such as yeast reproduce asexually by |
cell | the 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 perform the same function |
organ | a group of two or more types of of tissue that work together to carry out one specific function |
organ system | a group of organs working together |
passive transport | the movement of substances through membranes without the use of the cell's energy |
osmosis | the movement of water particles through a membrane |
cellular respiration | plants and animals use the energy from glucose through a process called |
active transport | when energy is required to move materials through a cell membrane |
cell cycle | the process of growth, division and replacement of a cell |
mitosis | the division of the nucleus while the cell is dividing into two identical cells |
zygote | in sexual reproduction, the cell formed when a sperm and an egg cell join |
meiosis | a special kind of cell division in which the sex cells are reproduce with half as many chromosomes as in other cells |
fertilation | when a sperm cell joins an egg cell |