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Cells
Chapter 2
Term | Definition |
---|---|
Microorgansims | an organism that is microscopic, or not visible to the unaided eye. |
Microbe | another term for a microscopic organism. |
Unicelllular organisms | single-celled organisms. |
Multicellular organisms | multiple celled organisms. |
Binary fission | a type of asexual reproduction in which the organism divides in two. |
Conjugation | a process in which organisms fuse, or attach themselves to each other, and exchange some of their genetic information. |
Budding | a bud forms on a parent cell and grows until it breaks off to become a new plant. |
Cells | the basic unit of life and the smallest part of a living thing that is capable of life. |
Tissue | a group of cells that work together to preform the same function |
Organ | a group 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 | the movement of substances through membranes without the use of the cells energy |
Osmosis | the movement of water particles through a membranes |
Cellular Respiration | plants and animals use the energy from glucose through a process called this |
Active Transport | when energy is required to move materials through a cell membrane |
Cell Cycle | this ongoing process of growth, division, and replacement is called this |
Mitosis | a process in which a cell divides to make offspring |
Zygote | what forms when the male and female sex cell join together |
Meiosis | the process in which the zygote splits apart twice then joins together agaiin |
Fertilization | when a sperm cell joins an egg cell. |