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Unit 2-3 Vocab.

Biology I (Ms. Nichols) that I don't know very well

1b; Unit 2 Vocab.1b; Unit 2 Definitions1c; Unit 2 Vocab.1c; Unit 2 Definitions1d; Unit 3 Vocab.1d; Unit 3 Definitons
Macromolecule Long chains of molecular sub-units called monomers Cytoskeleton A structure that helps cells maintain their shape and internal organization Active Transport A process that involves the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy
Monosaccharide any of the class of sugars that cannot be broken down to give a simpler sugar Endoplasmic Reticulum A large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism Concentration Gradient An important process for understanding how particles and ions move in random motion in a solution or gas
Polypeptide Peptides are short chains of amino acids linked by peptide bonds Golgi Apparatus A cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell Hypertonic Having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid
Substrate the surface or material on or from which an organism lives, grows, or obtains its nourishment Lysosome Membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids Hypotonic Having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid
Activation Energy The minimum amount of energy that must be available to reactants for a chemical reaction to occur Vacuole A space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid Isotonic Denoting or relating to a solution having the same osmotic pressure as some other solution, especially one in a cell or a body fluid
Organic Produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents Fungal Cell Contain mitochondria and a complex system of internal membranes, including the endoplasmic reticulum and Golgi apparatus Facilitated Diffusion The diffusion of solutes through transport proteins in the plasma membrane
Enzyme Proteins that help speed up metabolism, or the chemical reactions in our bodies Prokaryotic Cell Single-celled organisms belonging to the domains Bacteria and Archaea Membrane Pump Transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes
Nucleotide A compound consisting of a nucleoside linked to a phosphate group Eukaryotic Cell Have a nucleus enclosed within the nuclear membrane and form large and complex organisms Endocytosis The ingestion of large particles (such as bacteria) and the uptake of fluids or macromolecules in small vesicles
Catalyst A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change Lipid Envelope Allows enveloped viruses to bud out of cells without disrupting the cell membrane Exocytosis Fusion of secretory vesicles with the plasma membrane
Amino Acid The basic building blocks of proteins Mitochondria An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur Osmosis The net movement of water across a semipermeable membrane
Created by: user-1826082
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