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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 Definitions | 1c; Unit 2 Vocab. | 1c; Unit 2 Definitions | 1d; 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 |