A) These macromolecules are only incorporated into structures outside the membrane.
B) Macromolecules are broken down extracellularly, and their subunits diffuse through the membrane.
C) Macromolecules are digested extracellularly, and their subunits move through transport proteins.
D) Macromolecules are transported via endocytosis and digested within the cell.
E) both C and D
G) B) and D)
Correct Answer
verified
Correct Answer
verified
A) NaCl is a very dry powder, and the water is able to soak into the salt.
B) The sodium ions repel the negative end of the water molecule.
C) Spheres of hydration form between the water and the ions.
D) The charged ends of the water molecules are able to surround the oppositely charged salt ion.
E) both C and D
G) A) and D)
Correct Answer
verified
Correct Answer
verified
Correct Answer
verified
condensation; hydrolysis
Correct Answer
verified
A) macromolecules, organic molecules, supramolecular structures, organelles, cells
B) organic molecules, supramolecular structures, macromolecules, organelles, cells
C) organic molecules, macromolecules, supramolecular structures, organelles, cells
D) organelles, organic molecules, supramolecular structures, macromolecules, cells
E) organic molecules, macromolecules, organelles, supramolecular structures, cells
G) A) and C)
Correct Answer
verified
C
Correct Answer
verified
A) The specific heat of water is similar to most liquids.
B) Water's high specific heat has a temperature- buffering effect.
C) The specific heat of water is 1.0 calorie per gram.
D) Water gains and loses heat more slowly than most other solvents.
E) Heat applied to water must initially break a number of hydrogen bonds.
G) A) and E)
Correct Answer
verified
Correct Answer
verified
A) nucleotides, nucleus, DNA, chromosome, cell
B) cellulose, glucose, cell wall, cell
C) protein, membrane, amino acids, chloroplast, cell
D) nucleotides, chromosome, DNA, nucleus, cell
E) nucleotides, DNA, chromosome, nucleus, cell
G) C) and E)
Correct Answer
verified
Correct Answer
verified
A) Water is added to join the monomers of the macromolecules.
B) The polymer chain usually has two different ends.
C) Macromolecules are synthesized by the stepwise addition of monomers.
D) Often the energy needed for polymerization is supplied by ATP.
E) A monomer is usually activated by the coupling of the monomer to a carrier.
G) B) and C)
Correct Answer
verified
Correct Answer
verified
A) The pigment is a polar molecule and is forming hydrogen bonds with both the water and oil molecules.
B) The pigment is neither polar or nonpolar, but is apolar.
C) The pigment is probably hydrophobic and is attempting to bond with the oil.
D) The pigment is hydrophilic and will not form hydrophobic bonds with the oil.
E) The pigment is amphipathic, having polar and nonpolar regions.
G) A) and C)
Correct Answer
verified
Correct Answer
verified
A) calorie
B) joule
C) mole
D) watt
E) both A and B
G) B) and E)
Correct Answer
verified
Correct Answer
verified
A) The membrane may absorb several times its weight in cholesterol.
B) It provides a good barrier between the inside and outside of the cell.
C) Proteins will avoid a selectively permeable membrane.
D) It allows cells to attach to adjacent tissues.
E) all of the above
G) A) and D)
Correct Answer
verified
Correct Answer
verified
A) amino acids
B) nucleic acids
C) lipids
D) sugars
E) disaccharides
G) All of the above
Correct Answer
verified
Correct Answer
verified
A) glycogen
B) chitin
C) peptidoglycan
D) cellulose
E) All of the above are structural polysaccharides.
G) A) and B)
Correct Answer
verified
A
Correct Answer
verified
A) As monomers are added to the polymer, water is removed from the macromolecule.
B) To be added to the polymer, the monomer must be activated.
C) Macromolecules are synthesized by the addition of monomers.
D) Polymerization is passive, requiring little ATP.
E) The polymer is directional.
G) A) and C)
Correct Answer
verified
Correct Answer
verified
A) Asymmetric carbon atoms create stereoisomers.
B) A carbon with hydrogens attached at two locations is usually asymmetric.
C) Molecules may have only one asymmetric carbon atom.
D) Methane has an asymmetric carbon.
E) Only amino acids have asymmetric carbon atoms.
G) C) and D)
Correct Answer
verified
Correct Answer
verified
A) the time associated with forming solely noncovalent interactions.
B) the presence of water in the cytosol.
C) information of pre- existing structures.
D) the size of the molecule.
E) all of the above.
G) B) and E)
Correct Answer
verified
Correct Answer
verified
A) Water molecules create spheres of hydration around solute molecules.
B) Water is an excellent solvent.
C) Water molecules are cohesive.
D) Water molecules are often associated via hydrogen bonds.
E) both C and D
G) All of the above
Correct Answer
verified
Correct Answer
verified
A) permeable to some molecules and impermeable to others.
B) permeable to all molecules.
C) permeable to only larger molecules.
D) permeable to all small molecules and ions, but impermeable to larger ones.
E) impermeable to all polar molecules.
G) B) and C)
Correct Answer
verified
Correct Answer
verified
A) inorganic chemistry
B) organic chemistry
C) biochemistry
D) biological chemistry
E) both C and D
G) A) and E)
Correct Answer
verified
Correct Answer
verified
A) single and double
B) triple
C) single
D) single, double, and triple
E) double
G) B) and D)
Correct Answer
verified
Correct Answer
verified
A) Water is a good solvent.
B) Water molecules are polar.
C) Water typically contains isotopes of hydrogen.
D) Water has a temperature stabilizing capacity.
E) Water molecules have numerous hydrogen bonds.
G) C) and D)
Correct Answer
verified
Correct Answer
verified
Showing 1 - 20 of 36
Related Exams