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bio unit 3

FINAL

TermDefinition
difine osmosis and diffusion osmosis is when the water goes threw a membrane and it can be high to low and diffusion is high to low.
what are the three factors that effect the rate of diffusion Temp,Consentration, and size
Define dynamic dynamic eqilivrium and concentration gradient The dinamic means stable and concentration gradient is the Consentration.
define isotonic, hypertonic and hypotonic sulutions hypo has a lower gradent isotonic is equaled gradent and hyper has higher.
define passive and active transport they are two different methods to move cells across the cell mebranne. one is high to low and one is low to high.
Q: Three types of passive transport. A: Diffusion, osmosis, facilitated diffusion.
Q: Difference between diffusion and facilitated diffusion. A: Facilitated diffusion uses transport proteins; simple diffusion does not.
Types of transport proteins. Channel proteins and carrier proteins.
Q: Symport vs antiport vs uniport. A: Symport: two substances same direction. Antiport: opposite directions. Uniport: one substance moves.
Q: Endocytosis vs exocytosis. A: Endocytosis: brings materials in. Exocytosis: expels materials out. Both active transport.
Q: Pinocytosis vs phagocytosis. Endo or exo? A: Pinocytosis: cell drinks fluids. Phagocytosis: cell eats particles. Both are endocytosis.
Q: Excretion vs secretion. Endo or exo? A: Excretion: removes waste. Secretion: releases useful substances. Both can involve exocytosis.
Q: Compare chromosomes vs chromatin. Draw chromosome with chromatid, sister chromatids, centromere. A: Chromatin: loose DNA; Chromosome: condensed DNA during cell division. [Diagram]
Q: Describe phases of the cell cycle. A: Interphase (growth/replication), Mitosis (division), Cytokinesis (cell splits).
Q: Phases of mitosis with drawings. A: Prophase, metaphase, anaphase, telophase. [Label diagrams]
Q: Define cytokinesis, centrioles, spindle fibers. A: Cytokinesis: cytoplasm division. Centrioles: organize spindle fibers. Spindle fibers: pull chromosomes apart.
Q: Cytokinesis in plants vs animals. Terms: cleavage furrow, cell plate. A: Animals: cleavage furrow pinches cell. Plants: cell plate forms new cell wall.
Q: How mitosis distinguishes cell, tissue, organ. A: Mitosis produces identical cells → tissues → organs.
Q: Define cancer as it relates to mitosis. A: Uncontrolled cell division leads to tumors.
Q: Parts of an experiment: hypothesis, constants, data & analysis, conclusion. A: Hypothesis: prediction. Constants: things kept the same. Data & Analysis: measurements and interpretation. Conclusion: results explanation.
Q: Compare pairs: qualitative & quantitative data, independent & dependent variable, control & experimental group. A: Qualitative: descriptive; Quantitative: numerical. Independent: changed; Dependent: measured. Control: unchanged; Experimental: tested.
Created by: user-2004343
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