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Living Environment

Topic 1: Similarities/ Differences among living cells

QuestionAnswer
Cell The basic unit of structure and function that makes up all organisms
Cell respiration The process in which nutrients are broken apart, releasing the chemical energy stored in them
Synthesis A life process that involved combining simple substances into more complex substances
Organelle A structure within the cell that carries out a specific function
Ribosomes Tiny structures in the cell that are the sites of protein production
Mitochondria Pod-shaped organelles that contain enzymes used to extract energy from nutrients
enzymes Proteins that speed up the rate or chemical reactions in living things
Chloloplasts Green organelles that contain chlorophyll; where photosynthesis takes place
Cell membrane The thin boundary between the cell and its environment
diffusion The movement of molecules from areas of high concentration to areas of low concentration
Active transport The process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration.
Amino acids Any one of several building blocks of protein
Receptor molecules Certain protein molecules in the cell membrane that can receive chemical messages from other cells
hormones A chemical produced in the endocrine glands
Created by: mbarkley
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