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Strauss Cell Terms

Strauss: Cell Organelle & Movement Terms

Phospholipids Molecules that ofrm the protective covering that surrounds cells
Cellulose Carbohydrate that is one of the most abundant biological molecules on Earth
Amino Acids Molecules that link together to form proteins
Lipids Group of chemicals that contains fats, waxes, and steroids
Nucleic acids Large, complex molecules that contain hereditary, or genetic information
Carbohydrates Groups of chemicals, including sugars and starches, that provide energy to organisms
Enzymes Group of proteins that help control chemical reactions
Nucleolus Structure that makes ribosomes
Cytoplasm Semifluid substance made primarily of water and organic compounds
Eukaryote Cell containing a nucleus
Cell Membrane Thin layer of lipid and protein that separates the cell's contents from the environment
Prokaryote Cell containing no nucleus
Organelles Structures that carry out the functions in a cell
Bilayer Two phospholipid layers of the cell membrane
Nucleus Control center of the cell
Chromosomes Structures containing coded blueprints that control cell activity
Semipermeable allowing only certain molecules to pass through membrane
Diffusion The movement of molecules from an area of high concentration to an area of low concentration
Concentration Gradient The difference between the concentration of a particular molecule in one area and its concentration in a neighboring area
Osmosis The diffusion of water molecules across a semipermeable membrane
Hypertonic Solution Solution having a higher concentration of solutes outside a cell than the concentration of solutes inside the cell
Hypotonic Solution A solution having a lower concentration of solutes outside the cell than the concentration of solutes inside the cell
Isotonic Solution A solution whose concentration is equal to the concentration of solutes inside the cell
Facilitated Diffusion The process of transporting molecules by carrier proteins during diffusion
Active Transport Transport of a substance across a cell membrane requring the use of energy; occurs against a concentration gradient
Bulk Transport When large molecules, food, and other substances are packaged and moved across the membrane
Created by: breunigm



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