Question | Answer |
active transport | moving material across cell membrane against concentration gradient requiring energy |
passive transport | movement of materials across cell membrane from high to low concentration not requiring energy (diffusion and osmosis) |
hypertonic | solution with a greater concentration of solutes than the cell (in our case) |
hypotonic | solution with lower concentration of solutes than the cell (in our case) |
isotonic | when the concentration of two solution is the same |
cell | basic unit of all living things enclosed in a barrier that separates its inside from its surroundings |
prokaryote | cell with no true nucleus or no other membrane bound organelles, all unicellular |
eukaryote | organized cell with a nucleus and other bound organelles that make up all plants and animals |
organelle | specialized structures that perform important cellular functions in eukaryotic cells |
ATP | adenosiine triphosphate. The energy used in the cell. |
semi-permeable | a membrane that only allows certain molecules to pass through it |
diffusion | the action of molecules moving from an area of high concentration to an area of low concentration |
osmosis | diffusion of water through a semi-permeable membrane |
photosynthesis | carbon dioxide and water get together in sunlight to form glucose and oxygen |
aerobic cellular respiration | glucose and oxygen get together with some energy to form carbon dioxide and water |
chloroplast | site of photosynthesis |
mitochondria | site of cellular respiration |
anaerobic respiration | producing ATP in a cell without any oxygen present |
xylem | this is responsible for taking water from the roots to the rest of the plant |
green | chloroplasts can absorb all light from the visible light spectrum except this col |
carbon dioxide | product of cellular respiration and reactant of photosynthesis, we exhale it |
oxygen | product of photosynthesis and reactant in aerobic respiration, we inhale it |
stomata | tiny openings in leaves that allow carbon dioxide into the plant and oxygen and water out |
chlorophyll | green pigment in chloroplast that traps light energy for photosynthesis |
autotroph | an organism that manufactures its own food |
heterotroph | an organism that is dependent on taking in other organisms for nutrition |
roots | the majority of water taken in by plants enters here |
algae | single cell organism that along with plants does photosynthesis supplying the Earth with oxygen |