ch 4 quiz #1

Question 1

what does ATP stand for

Answer 1

adenosine triphosphate

Question 2

what is ATP made of

Answer 2

nitrogenous base (adenosine)
sugar (ribose)
3 phosphate groups

Question 3

what group si the most important in ATP

Answer 3

the 3rd phosphate group, because it allows for ATP hydrolysis, where the 3rd phosphate group is lost, releasing energy to drive other eactions, and making ADP (adenosine diphosphate)

Question 4

7 props of water

Answer 4

1) cohesion - tendancy of the same kind of molecules to stick to each other
2) surface tension - surface of water has a resisitence to being broken
3) adhesion - waters tandancy to stick to other substances
4) boiling and freezing points - large range due to hydrogen bonding
5) specific heat capacity - the amount of energy it requires to raise the heat of something one degree celsius, water is very high
6) density ice is less dense than water so it floats
7) solubility - water can disslove substances that are ionic or polar

Question 5

resolution

Answer 5

how clear something appears

Question 6

magnification

Answer 6

how large something appears

Question 7

contrast

Answer 7

using dye to add a differance in color to a specimine to see things more clearly

Question 8

diffusion vs. osmosis

Answer 8

diffuion
-volume will not change
-solute and solvant can move
-non-polar molecules travel through membrane

osmosis
-volume changes
-only solvant can move