Unit Two Bio

Lysosomes

Lysosomes

________- breakdown dead cells; digests new materials brought in.

Endoplasmic reticulum

________- makes ribosomes ↳ Smooth>- no ribosomes.

Endocytosis

________- The taking in of things into all pinocytosis- taking in of water phagocytosis- taking in of larger molecules receptor- mediated water going in solid particles already deposit formed, closes to form vesicle exocytosis- letting things out.

Cytoskeleton

________- holds everything together.

Membrane Proteins

________ contain primarily our lipids ↳ especially chlorestorol It helps keep shape.

Vacuole

________- storage area for materials /water.

Hypotonic

________- lots of solvent- cell swells- water moves into cell.

Homeostasis

________- the body's ideal equalness.

Chloroplast

________- make sunlight into energy during photosynthesis; contains chlorophyll, giving green color.

Centrioles

________- help divide cell during cellular division

Diffusion

________- the movement of molecules across the membrane in a high>- low concentration gradient; happens easily w small molecules.

Passive Transport

________ does not require ATP energy examples include:- diffusion; facilitated diffusion; osmosis moves from high- low concentration.

Cell membrane

________- forms a barrier between the cytoplasm and the cell's environment semipermeability- allows some things out; not all.

Peripheal Membrane Proteins

________- temporarily on one side; can be easily removed can attach to imp or can stick into small portion- of lipid bilayer; most are hydrophilic.

Phospholipid bilayer

________- the two layers the phospholipids hydrophilic- likes water hydrophobic- hates water.

tail

attracts hydrophobic stuff

cell membrane

controls what goes in/out, support; outside of cell

Prokaroytic

Older No membrane bound organelles Contain only cell wall, cell membrane, and cytoplasm DNA is free floating Ex bacteria and archaea bacteria

Eukaryotic

younger membrane bound organelles DNA Ex plant and animal cells

Active Transport

Requires ATP energy -examples include Endocytosis and exocytosis

diffusion

the movement of molecules across the membrane in a high-> low concentration gradient; happens easily w small molecules

Hypertonic

lots of solute cell shrives-water moves out of cell

isotonic

equal cell remains the same

Negative Feedback

Tying to break what is stoping homeostasis sweating when hot; shivering When cold

Positive feedback

Amplifying whatever is breaking homeostasis ex contractions; ripening in fruit