The Cell Flashcards
What does the plasma membrane do?
Regulates flow of materials in and out of cell, key role in COMMUNICATION
What does the phospholipid bilayer include?
Phosphate head + 2 fatty acid tails
Does the phosphate head love or hate water
Love
Does the fatty acid tails love or hate water
Hate
Transport in the same direction is known as
Simport
Transport I the opposite direction is known as
Anti port
Passive transport process uses what energy?
Kinetic energy
2 examples of passive processes
Simple diffusion, osmosis
Describe the passive process
Substance moves down a concentration gradient through the membrane
What type of energy does the active transport process use
Cellular energy, usually ATP
Describe active processes
Cellular energy pushes substance through the membrane “uphill” against the concentration gradient
2 examples of active processes
Active transport, co transport
What does the cytoplasm include
Cytosol (intracellular fluid) and cytoskeleton
3 types of protein filaments in the cytoskeleton
Microfilaments, intermediate filaments, microtubules
What do ribosomes produce
Proteins
