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Bio Lab
Exam 1
| Question | Answer |
|---|---|
| homeostasis | maintain internal levels. Temperature, glucose. Cells have to get rid of waste. |
| semi-permeable | selective layer, so certain things can move in or out |
| passive transport | cells don't have energy |
| active transport | cells use energy |
| Facilitated diffusion | channel and transport proteins |
| encocytosis | particles in vesicles are brought into a cell |
| exocytosis | particles in vesicles are released from cell |
| solvent | part of the solution that dissolves the solute; water |
| solute | particles dissolved in the solvent |
| solution | water and solute |
| concentration gradient | difference in concentration of molecules between two regions |
| equilibrium | concentration of solute and solvent is equally distributed. |
| diffusion | movement of solute from high to low concentration |
| osmosis | movement of water through semi-permeable membrane, high to low concentration of water |
| hypotonic | one solution has a lower concentration of solute than the other |
| isotonic | both solutions have the same concentration |
| hypertonic | one solution has a higher concentration than another |
| egg nucleus | houses DNA |
| vitelline membrane | surrounds egg, is like an egg |
| animal pole | smaller cells, divide faster, heavily pigmented |
| vegetal pole | larger cells, divide slower |
| macromere | large cells- vegetal pole |
| micromere | small cells-animal pole |
| blastocoele cavity | hollow fluid filled cavity inside blastula |
| archenteron cavity | primitive digestive cavity |
| yolk plug | yolk cells in blastopore |
| neural fold | brain tissue, will fuse to form neural tube |
| neural groover | shallow median groover of neural plate |
| notochord | small round structure under neural tube |
| ectoderm | outer germ-layer, skin, nerves, brain, spinal cord |
| mesoderm | middle germ-layer, muscles, blood, bone |
| endoderm | inner germ layer, inner lining of internal organs, thyroid gland |
| Hensen's node | site of formation of 3 germ layers |
| Primitive streak | establishes bilateral symmetry |
| somite | mesoderm, gives rise to skeletal muscle, bone, dermis of skin |
| amnion | develops into amniotic fold |
| prosencephalon | forebrain |
| mesencephalon | midbrain, vision, hearing, motor control, etc. |
| rhombencephalon | hindbrain, medulla, pons, cerebellum |
| optic vesicle | cup shaped vesicles that will turn into eyes in later development |
| vitelline artery | blood circulation to and from yolk sac |
| diencephalon | thalamus, hypothalamus |
| tail bud | knob of embryonic tissue |
| ear | allows for hearing |
| allantois | function as "embryonic lung", collects liquid waste |
| homologous structure | induvial variations on a common anatomical theme. Seen in organisms that are closely related. |
| analogous structure | different anatomies, but similar functions. |
| vestigial structure | parts of body that were important to ancestors, but no long use. Example: tail bone. |
Created by:
Kileye
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