Cell Membrane & Movements Across Them Flashcards
What are some types of food moved into the cell?
Sugars
Proteins
Fats
What moves food into the cell?
Food
Salts
H2O
O2
What moves out of the cell?
Wastes
Products
What are wastes moved out of the cell?
Ammonia
Salts
CO2
H2O
What are some products moved out of the cell?
Proteins
What does semipermeable mean?
Only some materials can move in & out
What are two types of molecules that can go directly through the cell membrane?
Fats
Oils
What allows specific materials to pass in and out of the cell?
Protein channels
What are 3 examples of channels
H20 channel
Salt channel
Sugar channel
What is diffusion?
Moves from high to low concentration
In diffusion active or passive?
Passive
Explain why diffusion is passive
No energy in needed
What are 3 types of passive transports?
Diffusion
Osmosis
Filicated diffusion
What is active transport?
It moves molecules from low to high concentration.
What does active transport require?
Energy