Biology
All are true about the DNA molecule, except
a.) It is contained in human chromosomes.
b.) Its structure is identical to the RNA molecule.
c.) It is a double helix.
d.) It is made of nucleotides.
b.) Its structure is identical to the RNA molecule.
One distinguishing factor in a redox titration, as opposed to other titrations, is that it involves:
a.) The determining of an unknown concentration in one reactant
b.) The quantitative analysis of a substance
c.) The use of a known concentration
d.) The use of oxidation and reduction
d.) The use of oxidation and reduction
What causes a change in motion?
A force
What are compounds called that have their atoms connected in the same order but differ in three-dimensional orientation?
Stereoisomers
A feedback process whereby nature favors one design over another because it has an impact on reproduction
Natural Selection
Stem cells in bone marrow can develop into:
a.) platelets
b.) red blood cells
c.) white blood cells
d.) all of these
d.) all of these
How many electrons can fit into the third shell of an atom?
a.) 2
b.) 18
c.) 16
d.) 4
b.) 18
Is a compressed spring an example of potential or kinetic energy?
Potential
R-O-R' is the general formula for what class of compounds?
Ether
This theory states that people learn and imitate behaviors they have observed in other people
Social Learning Theory
While running a marathon, a woman felt pain & a burning sensation in her legs. One reason for this is the conversion of pyruvate into lactic acid which the body does in order to...?
a.) Regenerate FADH from FADH2
b.) Regenerate FADH2 from FADH
c.) Regenerate NADH from NAD+
d.) Regenerate NAD+ from NADH
d.) Regenerate NAD+ from NADH
Ionization energy ___ & atomic radius ___ down a group of the periodic table.
a.) Increases ... decreases
b.) Decreases ... increases
c.) stays the same ... decreases
d.) increases ... increases
b.) Decreases ... increases
Which is not a conservative force?
a.) Electrostatic repulsion
b.) Gravity
c.) Electrostatic attraction
d.) Friction
d.) Friction
This is the product of the reaction between a Grignard reagent and a ketone
Tertiary Alcohol
Which stimulus is the main factor that influences circadian rhythms?
a.) light
b.) Pain
c.) Temperature
d.) Pressure
a.) light
Which scenario would directly cause cell death?
a.) Inactivation of transport protein in the membrane
b.) Presence of hydrogen peroxide in the peroxisome
c.) Disruption of the lysosome & release of its contents
d.) Overstimulation of the cell cycle
c.) Disruption of the lysosome & release of its contents
Which of the following salts would result in an acidic solution?
a.) NH4NO3
b.) LiBr
c.) NaCl
d.) NaF
a.) NH4NO3
What is the momentum equation?
p=mv
What are the organic compounds whose molecules have a carbonyl nitrogen bond.
Amides
Which part of the brain controls speech?
a.) Cerebellum
b.) Hypothalamus
c.) Occipital lobe
d.) Broca’s Area
d.) Broca’s Area
Retroviruses possess an enzyme called reverse transcriptase that is responsible for which of the following?
a.) Synthesize mRNA from viral RNA
b.) Synthesize RNA from proteins
c.) Synthesize DNA from RNA
d.) Synthesize antisense RNA from DNA
c.) Synthesize DNA from RNA
Which hydrocarbon has the highest melting point?
a.) C2H4
b.) C11H24
c.) C6H14
d.) C3H8
b.) C11H24
Which one is false regarding partial pressure
a.) Partial pressure signifies the pressure of a gas in a system @ 25oC
b.) Partial pressure can be calculated if you know the mole fraction of the gas & the total pressure of the system
c.) Dalton`s Lae of partial pressure is only valid for a mixture of inert gases
a.) Partial pressure signifies the pressure of a gas in a system @ 25oC
A carbon chain that is not filled up with the maximum amount of hydrogen but rather has double or triple bonds
Unsaturated
Which disease is caused by protein misfolding, which causes plaque accumulation in the brain?
a.) Depression
b.) Alzheimer’s disease
c.) Parkinson’s disease
d.) schizophrenia
b.) Alzheimer’s disease