Chapter 1
_____ are organisms that feed on other organisms or their remains.
Consumers
The atomic number tells you the # of?
protons
The substance that is dissolved is called the?
solute
Stanley Miller's experiment demonstrated what?
Organic molecules may have been synthesized abiotically
How many amino acids are used to make up proteins (total # that exists)
20
The ribcage surrounding the organ systems in the body is an example of?
Form fits function
The mass number = ?
# of protons + # of neutrons
A substance that minimizes the changes in H+ and OH- in a solution is called a(n) __________?
Buffer
Name 1 way carbon chains vary.
length, branching, double bond position, presence of rings
What type of fatty acid has one or more double bonds between the carbon atoms of the chain
unsaturated fatty acid
______ lack membrane bound organelles
Prokaryotes
__________ have the same number of protons but a different number of neutrons.
Isotopes
A substance that reduces the hydrogen ion concentration of a solution
Base
What type of group is -NH2
amino
What is the major function of fats?
energy storage
______ is the branch of biology that names and classifies species
Bond in which electrons are shared equally between two atoms of similar electronegativity
Nonpolar covalent bond
What would be the pH of the following solution: -log 10-4
4
ATP is a biological form of energy that is made of what type of functional group?
phosphate (OPO32-)
Steroids are an example of what type of large biomolecule?
What is the mechanism for descent for modification?
natural selection
____ is the outermost electron shell of an atom
Valence
The ability for proteins to dissolve in water is an example of which characteristic of water?
Versatility as a solvent
___________are the components of organic molecules that are most commonly involved in chemical reactions
functional groups
The monomeric units of proteins are called?
amino acids