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the plasma membrane is ...... meaning only certain substances can pass through.

semi permeable

the plasma membrane is a.....

phospholipid bilayer

The plasma membrane is a dynamic structure and ...... within the plasma membrane can move around.


proteins in the plasmsa membrane serve 3 kinds of them.

1. Acts as a enzyme
2. help recognize and communicate with each other
3. form channels/tunnels for substances that would not be able to pass through the plasama membrane on their own.


movement of particles that move from a concentrated area to a less concentrated area and begin to reach equilibrium

passive transport and EX:

transport across the membrane where no energy is needed. EX: diffusion

facilitated diffusion

a type of transport where a tunnel/channel/transport protein is required. does no need energy


diffusion of water

hypertonic solution

more solution on the outside

hypotonic solution

more solution on the inside

isotonic solution

balanced solution-is in equilibrium

active transport

movement of substances across a membrane in which energy is required, the energy comes from ATP. Helps maintain the cell's chemical environment.


transportation of large molecules out of the cell


transport of large molecules that go into the cell

photosynthesis equation

H2O+CO2---> Glucose+Oxygen

cellular respiration equation

glucose +oxygen---->ATP+CO2+H2O


the amount of energy required to raise the temperature of 1 gram of water by 1 degree Celsius


1 kilocarlie +1,ooo calories


gives cells energy.. like a battery

cellular respiration is aerobic meaning...

requires oxygen

cellular respiration

is the process that releases energy by breaking down glucose and other food molecules in the presences of oxygen

step1: glycolysis
-takes place
-what goes in
-what goes out

- cytoplasm
-2 ATP, glucose

step2: krebs cycle
-takes place
-what goes in
-what goes out

- mitochondria
- ATP pyruvate acid(critic acid)

step3: electron transport
-takes place
-what goes in
-what goes out

- mitocondria membrane

net ATP production

36 ATP


Process of making ATP without oxygen

alcoholic fermentation

in bread yeast

lactic acid fermentation

in your muscles after a hard workout

osmotic pressure

-makes cell
-burst with fresh water
-concentration is great on the inside
-hypertonic solution


cellular organs where photosynthesis takes place


gives plant color and catch sunlight


openings on under side of leaves that let CO2 O2 go in and out

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