16 questions
Why are diffusion and osmosis important to cells?
It allows them to take in materials/substances without using energy.
It allows them to reproduce.
It allows them to absorb sunlight.
It allows cells to use all energy.
What does selectively-permeable mean?
Allow certain things to enter and leave the cell
Nothing gets through
The cell lets only large substances through
Passive transport requires ________________
concentration gradients
no energy
motion
energy
The diffusion of particles through the cell membrane from high to low concentration is called ....
exocytosis
active transport
passive transport
osmosis
When the smell of perfume spreads throughout a room, it is an example of ....
passive transport
diffusion
active transport
osmosis
If a gummy bear is placed in salt water, the mass of the gummy bear will decrease because water will move out of the gummy bear. What process does this represent?
osmosis
fermentation
respiration
diffusion