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the smart stack
the smart stack the stack that makes you think
Term | Definition |
---|---|
Isotonic | physiol (of two or more muscles) having equal tension |
Diffusion | The process of movement of a substance (solid, liquid, or gas) from the region of higher concentration to the region of lower concentration so as to spread uniformly |
Membrane pump | transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes. |
Facilitated diffusion | the diffusion of solutes through transport proteins in the plasma membrane. |
Exocytosis | fusion of secretory vesicles with the plasma membrane |
Endocytosis | the ingestion of large particles (such as bacteria) and the uptake of fluids or macromolecules in small vesicles. |
Hypertonic | having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid. |
Osmosis | Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential to a region of low water potential. |
concentration graident | an important process for understanding how particles and ions move in random motion in a solution or gas. |
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.” |
autotroph | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
trophic level | The trophic level of an organism is the position it occupies in a food web |
biomass | renewable organic material that comes from plants and animals. |
matter | any substance that has mass and takes up space by having volume. |
10% pure | Pure substances always have chemical formulae. Here are some examples of pure substances: |
heterotroph | A heterotroph is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. |
food chain | A food chain is a linear network of links in a food web, often starting with an autotroph, also called a producer, and typically ending at an apex predator, detritivore, or decomposer. |
food web | of all the food chains in a single ecosystem. |
energy pyramid | is a graphical representation of the energy found within the trophic levels of an ecosystem. |
producer | Producers are organisms that make their own food |
mitochondria | A mitochondrion is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi. |
vacuole | A vacuole is a membrane-bound organelle which is present in plant and fungal cells and some protist, animal, and bacterial cells. |
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. |
endoplasmic reticulum | a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. |
lipid envelope | allows enveloped viruses to bud out of cells without disrupting the cell membrane |
cytoskeleton | The cytoskeleton is a structure that helps cells maintain their shape and internal organization, |
prokaryote | Prokaryotes are organisms whose cells lack a nucleus and other organelles. |
eukaryote | Eukaryotes are organisms whose cells contain a nucleus and other membrane-bound organelles. |
ribosome | . A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell. |
golgi apparatus | is a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell. |