Biological molecules 6

Question 1

What are the to charge of water- and what molecule do they correlate to?
Is water polar or non polar?

Answer 1

water is polar
oxygen-slightly negative
hydrogen-slightly positive

Question 2

What bond is inbetween 2 water molecules? what does it do?

Answer 2

-Hydrogen bonds
-creates a cohision

Question 3

difference between polar and non polar molecules

Answer 3

polar- negative and positive end,hydrophillic
non polar- 1 charge throughout, hydrohobic

Question 4

Propeties of water- how is it a good solvent/ metabolite?

Answer 4

-Allows for metabolic reactions such as condesation/hydrolysis and photosynthesis/ respiration

Question 5

Properties of water-specific heat capactiy

Answer 5

-high specific heat capacity-enables water to gain or lose alot of tempature without temp change
-buffer for temperature
-maintains ocean/temperature of the environment

Question 6

Properties of water-specific latent heat

Answer 6

-provides a cooling effect

Question 7

properties of water- cohision

Answer 7

-inbetween watermolecules
-supports column of water
-surface tension

Question 8

Depth- how is water a good solvent

Answer 8

-good for transportations of minerals
-many ions&other polar molecules can dissolve in it beacause water is dipolar- many charges in substances can be attracted to it

Question 9

Names 2 polar substances and why they cant dissolve in water

Answer 9

-lipids and large polymers
-hydrophobic(stable bonds)