Diffusion
Why does facilitated diffusion require transport proteins but diffusion does not?
Facilitated diffusion requires transport proteins because it involves molecules that cannot easily pass through the lipid bilayer (e.g., large, charged, or polar molecules), while diffusion happens with small or nonpolar molecules that can pass directly through the membrane.
Define ATP
Adensoine Tri-phosphate
What Omegas are found in fish oil
Omega-3
What is the difference between diffusion and facilitated diffusion?
Diffusion is the movement of molecules from high to low concentration without any help, while facilitated diffusion requires transport proteins to move molecules across the membrane.
What is active transport, and why does it require energy?
Active transport is the movement of molecules against their concentration gradient (from low to high concentration), and it requires energy (usually ATP) to work.
Name Mr. Hammell's favorite baseball team
How does osmosis differ from simple diffusion?
Osmosis specifically refers to the movement of water molecules across a selectively permeable membrane, while simple diffusion can apply to any type of molecule moving from high to low concentration.
How do cells use exocytosis to release waste products?
Cells use exocytosis to release waste by packaging waste materials into vesicles, which then fuse with the cell membrane to expel the contents outside the cell.
Name one of Mr. Hammell's favorite college
Oklahoma, UW, Auburn, Michigan
Define Osmosis
Diffusion with water
How do transport proteins contribute to both passive and active transport?
Answer: Transport proteins assist in both passive (facilitated diffusion) and active (active transport) transport. In passive transport, they help molecules move down their concentration gradient, while in active transport, they use energy to move molecules against their gradient.
What is Mr. Hammell's favorite shark
Great White
What are the two types of solutions with osmosis I mentioned in class
(Not on quiz I promise)
Hypertonic, Hypotonic
Can you explain how the sodium-potassium pump works?
The sodium-potassium pump moves 3 sodium ions out of the cell and 2 potassium ions into the cell, against their concentration gradients, using energy from ATP.
Name seven different sharks that is not a great white
Bull shark, tiger shark, lemon shark, black tip reef shark, white tip reef shark, Hammerhead shark, mako shark