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LE Topic 1

TermDefinition
Active Transport Movement of substances across a cell membrane using energy.
Amino Acids Building blocks of proteins.
Cell Basic unit of life.
Cell Membrane Barrier that surrounds and protects the cell.
Cell Respiration Process of converting food into energy in cells.
Chloroplast Plant cell part that makes food using sunlight.
Circulation Movement of blood and nutrients throughout the body.
Cytoplasm Jelly-like substance inside a cell where organelles are found.
Diffusion Movement of particles from an area of high concentration to low concentration.
Digestion Breakdown of food into smaller parts for absorption.
Enzymes Proteins that speed up chemical reactions in the body.
Excretion Removal of waste products from the body.
Homeostasis Maintenance of a stable internal environment in the body.
Hormone Chemical messenger that regulates body functions.
Immunity Body's ability to fight off infections and diseases.
Inorganic Substances that do not contain carbon-hydrogen bonds.
Metabolism All chemical processes that occur in a living organism.
Mitochondria Cell structures that produce energy.
Nucleus Control center of the cell that contains DNA.
Organ Group of tissues that work together to perform a specific function.
Organ System Group of organs that work together for a common purpose.
Organelle Specialized structure within a cell that performs a specific function.
Organic Substances that contain carbon and are associated with living things.
Receptor Molecule Protein on a cell’s surface that receives signals from outside the cell.
Reproduction Process of producing new offspring.
Respiration Process of breathing and exchanging gases.
Ribosome Cell structure that makes proteins.
Simple Sugars Basic form of carbohydrates, used for quick energy.
Synthesis Combining parts to make a whole, such as building complex molecules.
Tissue Group of similar cells that work together to perform a function.
Vacuole Storage space in a cell, often filled with fluid.
Created by: mharms
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