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SCI221

Week1-6

TermDefinition
Homeostasis The body’s ability to maintain stable internal conditions despite changes in the external environment.
Negative Feedback A response mechanism that reverses a change in a controlled condition to maintain balance (e.g., body temperature regulation).
Biomolecule Any molecule produced by living organisms, including carbohydrates, lipids, proteins, and nucleic acids.
Enzyme A protein that speeds up chemical reactions in the body without being used up in the process.
Cell Membrane The semi-permeable barrier that surrounds the cell and regulates what enters and leaves.
Mitosis The process of cell division that produces two identical daughter cells used for growth and repair.
Epithelial Tissue Tissue that covers the body surfaces, lines organs, and forms glands; functions in protection, absorption, and secretion.
Osteoblast A bone cell responsible for forming new bone tissue during growth and healing.
Myosin and Actin Protein filaments that interact to produce muscle contraction and movement.
Synovial Joint A freely movable joint that contains synovial fluid to reduce friction between bones (e.g., knee, shoulder).
Created by: user-1992641
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