Transport In Cells Flashcards
Diffusion is the movement from an area of ____ to ______ concentration.
High to low
Will diffusion happen faster or slower at a LOWER temperature?
Slower
Which state can diffusion NOT happen in?
Solid
What process allows oxygen to be transferred into the blood from the lungs?
Diffusion
Will diffusion happen faster or slower if the diffusion distance is DECREASED?
Faster
What is meant by a partially permeable membrane?
A membrane which will only allow certain substances through that a small enough to fit through the gaps
Which substance moves during osmosis?
Water
Which of the below has the highest concentration of water?
0M sugar solution
What is the independent variable in the osmosis practical?
The concentrations of salt or sugar solution.
What do we say when particles have been evenly spread out?
That they have reached an equilibrium
What is the dependent variable in the osmosis practical? There are two possible answers.
The change in mass of the potato.
Why did we calculate the percentage change in mass?
So that we can compare the results
Active transport needs energy. Which part of the cell releases most of this energy?
mitochondria
Give one substance that plants absorb by active transport.
minerals
Active transport involves movement of a substance …
from an area of low concentration to an area of high concentration
