bonding
How does the total engery released from the complete oxidation of gulcose to water and carbon dioxide in a bomb calorimeter compare with that produced in a living cell?
a.the same
b.Greater
c.Less
d.Varies
Which of the following cannot function as a hydrogen bond donor to water at pH 3.0?
a.Ethylamine
b.Ethanol
c.Acetadehyde
d.Acetic acid
Many secreted proteines in eukaryotes are glycoprotiens. In which cellular compartment or organelle are the majority of sugars transfered to the protien?
a.Cytoplasm
b.Mitochondria
c.Plasma membrane
d.golgi apparatus
The majority of transmembrane protiens in the plasma membrane were synthesized on ribosomes associated with which cellular compartment or organelle?
a.Cytoplasma
b.Endoplasmasic reticulm
c.Golgi apparatus
d.Plasma membrane
Addition of ethanol to a solution of magnesium chloride would result in all the following expect:
a. a decrease in the solubility of the salt
b. a decrease in the dielectric constant of the solution
c.a decrease in the electrostatic force between the Mg2+ and the Cl ions
d. all the above
Which of the following characteristics is not associated with the solvent water?
a. High surface tension
b. A chemically inert solvent, which has a great capability to dissolove a diverse spectrum of molecules and ions
c. Low heat capicity
d. A high dielectric constant
Which of the following is the strongest base in water?
a. Bicarbonate
b. Chloride
c. Acetate
d. Methylamine
At room tempature, the maximum number of water molecules which can hydrogen bond to a single water molecule is
a. 1
b. 2
c. 3
d. 4
An open system may be characterized by:
a. Heat exchange, but no exchange of matter with the surroundings
b. No exchange of heat or matter between the system and the surroundings
c. Exchange of both heat and matter with the surroundings
d. Only an entropy exchange with the surroundings
Which of the following thermodynamic functions is not a state function?
a. Heat
b. Internal energy
c. Entropy
d. Free energy
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