Anatomy and Physiology Unit 2
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What occupies the space around the nucleus of an atom?
True or False
The physical and chemical properties of a compound are the same of the elements it's from
What type of electron can form a bond?
How many valence electrons are in group 17?
What type of ion forms when an atom loses an electron?
Why does ice float on water?
Because the ice is less dense than the water
How do you classify a substance with a pH of 6?
2H2+O2 ---> 2H2O
What are the reactants and products?
Reactants ---> Products
H, O H, O
What are the 3 subatomic particles? What are their charges? Which ones are found in the nucleus (underlined)?
- Protons +
- Neutrons o
- Electrons -
Isotopes have a different number of _____
Covalent bonds are a result of what?
What compound removes hydrogen ions to an aqueous solution?
List the 4 elements that make up 96% of your body
- Carbon, Hydrogen, Oxygen, Nitrogen
What do you call something that makes up only .01% of your body?
Which of these are organic?
O2, H2O, CH4, SO4
(all organic molecules have to include carbon)
What do you call macromolecules with repeating units?
Describe a monosaccaride
What polysaccaride that us a sugar stockpile in plants?
Animals store their sugar as ____
What are 3 functions of fats?
Store energy, cushion organs, insulate the body
What has the max number of hydrogen atoms?
What are the 4 base pairs found in DNA?
Cytosine, Thymine, Adenine, Guanine
What is the monomer that makes up a fat?
Glycerol + 3 fatty acid chains
How many bases are in human DNA?
3 billion base pairs (6 billion bases)
What builds up a polymer? What breaks it down?
Dehydration breaks it
Hydrolysis builds it
List some properties of water
Has a high heat capacity, universal solvent, polar, cohesion/adhesion, neutral pH, solid form is less dense than the liquid form
List the 4 polymers and the monomers that make them up
- Proteins- amino acids
- Lipids- glycerol + 3 fatty acid chains
- Carbohydrate- macromolecules
- Nucleic Acids- nucleotides
What is an enzyme? Explain how it can be classified as a catalyst
It's something that increases the speed of a body's reaction. They're special proteins
What is activation energy? What do enzymes do to activation energy?
The amount of energy required to cause a reaction. They lower the activation energy
What would you like to do?
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