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Chapter 2

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
Created by: lauren.craig