B1 - Cell Structure And Transport Flashcards
What is ‘Diffusion’?
Movement of gas particles from area of high concrentration to low concentration
What type of transport is Osmosis and Diffusion
Passive Transport
What affects the Rate of Diffusion
Temperature
Distance
Concentration
What is ‘Concentration Gradient’
Difference of two areas of Concentration
What is a ‘Solute’
A substance in a solution
What is ‘Gas Exchange’
Diffusion of Oxygen and Carbon Dioxide particles in opposite directions in the lungs
What is ‘Osmosis’
Movement of water particles through a partially permeable membrane from a dilute solution to a concentrated solution
What is a ‘Dilute Solution’
Solution that contains high concentration of water and low concentration of sugars
What is a ‘Concentrated Solution’
Solution that has low Concentration of water but High Concentration of sugars
What is ‘Hypertonic’
When water goes in the animal cell through osmosis until it bursts
What is ‘Hypotonic’
When water escapes the animal cell until it shrivels up (crenation)
What is ‘Isotonic’
When water Water moves in and out the cell as it has reached an equalibrium
What is ‘Equallibrium’
When something is equal
What is ‘Active Transport’
When minerals get transported in and out the cell membrane, This goes against concentration gradient
Does Passive Transport require energy?
Nuh uh
Does Active Transport need energy?
Yes
What is ‘Turgor’
When water moves into a Plant Cell and builds up pressure until no more water can enter.
It does not burst.
What is ‘Plasmolysis’
When water escapes a Plant Cell until it dies.
How do you get ‘Volume’
Length x Width x Height
How do you get ‘Surface Area’
Number of Sides x Width x Height
How do you calculate ‘Magnification’?
Magnification = Image Size / Real Size
What is the Function of the ‘Nucleus’
Controls the activities of the cell and contains the genetic material
What is the Function of the ‘Cytoplasm’
Liquid gel where the Chemical Reactions take place
What is the Function of the ‘Cell Membrane’
Controls what enters and leaves the cell such as Glucose and Mineral ions
