Nature of Matter
Protons have what type of charge and what is their relative weight?
Positive and 1
What is the attraction between molecules of the same substance called?
Cohesion
What are the 4 macromolecules
Carbs, lipids, proteins, nucleic acids
What is the acronym to remember what sides the reactants and products are on
RAP
Reactants-arrow-products
What is the ratio for Carbohydrates
1:2:1
What two subatomic particles make up the nucleus of an atom
Neutrons and protons
What is the attraction between molecules of different substances called?
Adhesion
What are carbs monomer?
Monosaccharide
trap Sunlight
What are the monomers of Proteins?
Amino Acids
Ionic bonds form between what?
A metal and a nonmetal
What is an example of cohesion?
Surface tension- on a swimmer
Bugs walking on water
water droplets staying together on smooth surface
What are the 2 monomers of lipids?
Fatty acid and a glycerol
Some chemical reactions occur spontaneously, while other do not. In order to burn the pages of a book, what would you need to add to start the chemical reaction
Activation energy
why are lipids good at keeping water out of the cell?
They are hydrophobic
Sodium-23 is an isotope of sodium. Sodium is number 11 on the periodic table. What is the number of neutrons in this isotope?
12
If I dipped a litmus paper into a substance and the paper turned a bright red, what would I suspect about the pH
It would be acidic
What is the process used to combine 2 monosaccharides into a disaccharide by removing a water called?
Dehydration Synthesis
An enzyme is a catalyst for chemical reactions (speeding up the process) Give MY example of an enzyme and substrate for a chemical reaction
Enzyme- door handle
Substrate- my key
chemical reaction- opening the door
Name the 3 groups on an amino acid
carboxyl, Amino, R
Bromine-79 is an isotope. Bromine is number 35 on the periodic table. How many protons, neutrons and electrons does this isotope have?
p-35
n-44
e-35
What is the pH scale? name the numbers for acids, neutral, and bases
1-6 acid
7-neutral
8-14- basic
If I eat a piece of toast with butter and a side of sausage for breakfast, what are the macromolecules I am eating (where in the meal are they from)
Toast- complex carbohydrate
Butter- Lipid
Sausage- protein
Balance this equation
__Na + __ Cl2 --> __ NaCl
2 Na + Cl2 --> 2NaCl
If a lipid has all single bonds except for one double bond between two carbons in the fatty acid tail, what type of lipid is it?
It is a unsaturated fat