Untitled Flashcards Set

Enzymes

venoms

• Venom

  • Injected

  • phospholipase(enzyme)

    • Breaks down tissue and cell around bite

    • Breaks down phospholipid

  • Attack cell membranes

    • Which Kills cells

• Poison

  • Consumed

Plasma membrane

functions

• Separates outside from inside cell

• Communicate with other cells

• Creates attachment to other cells

  • Desmosomes

  • tight junctions

• Regulates exchange of essential substances

  • Goes in plasma membrane

    • Sugars

    • Proteins

    • Fats

    • Salts

    • O2

    • H2O

  • Goes Out plasma membrane

    • ammonia 

    • Salts

    • Co2

    • H20

    • Protein

  • Cholesterol

    • Keeps membrane fluid

Concentration gradient

• Molecules move from place to another

• Move from high concentration to low concentration

• Equilibration

  • Equal concentration 

• Passive transport

  • no energy

  • High to low

  • Simple diffusion

    • Go through bilayer easily

    • Examples

      • Gasses

• Facilitated diffusion

  • A channel protein that has a channel to help let ions and water  in

  • Carrier proteins

    • Carries larger substances through

      • Amino acids

• Osmosis

  • Diffusion of water through Aquaporins

    • Pores for water to go through first

    • Water can go through anything if it wanting

    • Hypotonic solution

      • Water goes into cells

    • Isotonic solution

      • Equal movement t of wate rin and out cells

    • Hypertonic

      • Water moves out of cells

• Energy requiring transport

  • Low to high

  • Requires external energy

  • Endocyostsis

    • Entering membrane throujgh sac

    • Pinocystisus

      • Taking in lqiuid

    • Phagocytosis

      • Taking in solid

    • Recpiter-meter

      • Recpitors used to signalto close vesicle
        
        

  • Exocytosis

    • Existing membrane and releases non membrane fragments

Cell connection and communication 

• Desmosomes

  • Attach cells together

  • Made of protein

  • Make it so we cant just peel our skin off

• Tight junctions

  • Make cell leakproof

  • Formed by stands of protein seal cells together

• Transportation of hormones

  • Gap junction

    • Animals

  • Plasmodesmata

    • Plants