Chemistry of Life Lecture Flashcards
Example of why chem is important to biology
Those who made hats went crazy, mercury, destroyed nerve cells
Example of why chem is important to biology
Those who made hats went crazy, mercury, destroyed nerve cells
What are waters unique properties due to?
The structure and interactions of its molecules
What role does polarity play in water?
oxygen-more electronegative, pulls hydrogen, polar..positive and negative interact
Example of why chem is important to biology
Those who made hats went crazy, mercury, destroyed nerve cells
What are waters unique properties due to?
The structure and interactions of its molecules
What role does polarity play in water?
oxygen-more electronegative, pulls hydrogen, polar..positive and negative interact
What are waters unique properties due to?
The structure and interactions of its molecules
What role does polarity play in water?
oxygen-more electronegative, pulls hydrogen- polar..positive and negative interact
Hydrogen bonds—-.> between molecules
What are the emergent properties of water due to?
hydrogen bonding.
What happens during cohesion?
Molecules stick together -like with like- don’t fall off, holding on to the molecule next to it on dime– add – the water drops when it reaches the threshold
What happens during adhesion?
The clinging of one substance to another
What do hydrogen bonds do?
Give properties
Water is able to absorb or release large amounts of heat only with a light change to its own temperature..what is this due to?
why is it important?
H2O’s high specific heat.
huge bodies of water–>sun’s out—->water absorbs sun’s energy , temp of water doesn’t doesn’t rise much–> holds onto energy during the day–>night sun rises, maintains similar energy
*specific temp lattice-hydrogen bonds, molecules slow down enough-lockets of air make ice less dense than water–if this property didn’t exist creatures in lakes wouldn’t survive and ocean would be completely solid–>wouldn’t thaw, all life would die.
water acts as an insulator allows for climate where organisms can thrive.
What is water’s versatility as a solvent due to?
polarity of the water molecule
m
What makes carbon so special?
C-omplex molecule
A-bundant
D-irectly used as energy source
E-lectron configuration
Differences between organisms are due to?
How you put Carbon with Nitrogen, Oxygen, etc.
What are isomers?
Compounds with the same molecular formula but a different arrangement of atoms
What are the different types of isomers?
- Structural isomers
- Cis-Trans (geometric isomers)
- Enantiomers
What is the difference between cis and trans isomers?
cis-the two xs are on the same side
trans-two xs are on opposite sides
What are enatiomers?
Mere images of each other
What are the biological implications of isomers?
isomers have different biological properties
enantiomers are critical in pharmaceutical industry
-molecules of drug in one shape–>isomers have a different effect on the body. must see if molecule can form mere image–>does it have unintentional effects
Thaliodomide showed that?
one form can work to help treat one thing then it can have the power to bind with DNA–paving the way for a serious birth defect.
What is the purpose of functional groups?
They participate in chemical reactions in a predictive manner.
They can cause a drastic change in function
One or more parts change a molecules function
