Third From Topic 2 Flashcards
What can move out of an animal cell via diffusion?
Carbon dioxide
What’s a partially permeable membrane.
A membrane in which only certain molecules are allowed through
What does an animal cell no have?
A cell wall
How does oxygen move into the body ?
-Oxygen moves from the air into the lungs into the red blood cells
-From a high concentration of oxygen to a low concentration
-By diffusion
What is diffusion?
Diffusion is the spreading of particles from a high concentration to a low concentration
What particle are too large to pass through a cell membrane?
Starch + protein
How do you calculate the surface area
L x W x number of sides
How to calculate SA:V ration?
SA / V
How do you calculate the total volume?
L x W x H
How do you calculate percentage change ?
Find mass - Initial mass
——————————— x100
Initial mass
What’s the equation for aerobic respiration?
Glucose + Oxegen -> carbon dioxide + water
Factors affecting diffusion
— concentration gradient
— the temperature
— membrane surface area
Osmosis definition
Osmosis is the diffusion of water particles I a substance from a high concentration to a low concentration
What is active transport?
Active transport moves substances of low concentration to a high concentration using energy