EXAM QUESTIONS AND VERIFIED ANSWERS ASSURED
SUCCESS
T/f: the time it takes for a compound to flow through a
metabolic pathway is called the flux.
True
T/f: proteins, carbohydrates, and fats all get broken down into
nadh and fadh2 in energy production.
True
T/f: a fat is a lipid molecules that is a liquid at room
temperature.
False
In rna, guanine always pairs with:
Cytosine
,In rna, adenine always pairs with:
Uracil
In dna, adenine always pairs with:
Thymine
Water is considered a polar solvent due to attractive forces
known as hydrogen bonds. A hydrogen bond is:
An attractive force between molecules where partially positive
hydrogen atoms are attracted to partially negative atoms of f,
o, or n
What is a london force?
A temporary attraction between atoms due to electron
alignment
What is a dipole-dipole force?
An attraction between the positive end of one polar molecule
and the negative end of another
,What attributes contribute to water's unusual properties?
1. Geometry of the molecule
2. Polarity of the -oh bonds
3. Ability of water molecules to hydrogen bond
4. Body angle of water molecules to h bond
The h+ concentration of a solution is 7.9 x 10^-13 m. What is the
ph?
12.1
Ph = -log(7.9 x 10^-13)
What represents the free-energy change of a reaction?
Δg = gibbs free energy
What is the measure of heat content in a reaction?
Δh = enthalpy
, What is the measure of order of the system in a reaction?
Δs = entropy
A fibrous protein is an example of a protein ___.
Conformation
What is an example of protein conformation?
Fibrous and globular
Any molecule or ion that is necessary for an enzyme's function
is called:
Cofactor
In a particular cell, molecules x binds to an enzyme causing to
stop catalyzing reactions. Molecule x is called what?