Lecture Exam 1

A  TRUE

B  FALSE

A  a protein

B  a fatty acid

C  a nucleotide

D  a monosaccharide

E  an amino acid

A  C3H8

B  CH4

C  C2H4

D  C2H2

E  C2H6

A    

B  is called the 1s orbital and can have a maximum of 8 electrons.

C  can have a maximum of 8 electrons.

D  is called the 2p orbital and can have a maximum of 2 electrons.

E  is called the 2p orbital.

F  can have a maximum of 2 electrons.

A  The Golgi apparatus holds the cytosol, and therefore the dye must be injected there.

B  You would have to inject the dye into the membrane of the rough ER.

C  Injection of the dye must occur in the inner membrane space of the mitochondria.

D  The dye would go between the plasma membrane and membrane of the organelles.

A  3H has 2 more protons than 1H.

B  3H has 2 more electrons than 1H.

C  3H has a different electron configuration than 1H.

D  3H has 2 more neutrons than 1H.

E  3H has the same number of neutrons as 1H.

A  Adenine will be present in the DNA.

B  DNA will have ribose as the sugar in its backbone and DNA will have uracil instead of thymine in its nitrogenous bases.

C  DNA will have uracil instead of thymine in its nitrogenous bases.

D  DNA will have a double-stranded structure and DNA will have thymine instead of uracil in its nitrogenous bases.

E  DNA will have a double-stranded structure.

F  DNA will have thymine instead of uracil in its nitrogenous bases.

A  isomers.

B  dimers.

C  polymers.

D  monomers.

E  isotopes.

A  tend not to interact with other molecules.

B  possess only hydrophilic properties.

C  possess both hydrophilic and hydrophobic properties.

D  possess neither hydrophilic nor hydrophobic properties.

E  possess only hydrophobic properties.

A  quaternary

B  tertiary

C  primary

D  secondary

E  hepternary

A  a theory

B  a discovery

C  a fact

D  a hypothesis

E  a prediction

A  FALSE

B  TRUE

A  an acidic solution.

B  having a H+ concentration of 4.

C  an acidic solution with a H + concentration of 4.

D  None of these choices are correct.

E  an alkaline solution.

A  protein

B  lipid

C  metabolite

D  DNA

E  carbohydrate

A  They have an asymmetric carbon that makes them mirror images.

B  They have different molecular formulas.

C  They differ in their arrangement around a double bond.

D  Their atoms and bonds are arranged in different sequences.

E  They possess the same chemical properties.

A  proteomics.

B  homeostasis.

C  growth and development.

D  cellular respiration.

E  metabolism.

A  The NaCl crystals will dissolve readily in methanol but will not dissolve in water.

B  The NaCl crystals will NOT dissolve in either water or methanol.

C  When the first crystals of NaCl are added to water or to methanol, they will not dissolve; but as more crystals are added, the crystals will begin to dissolve faster and faster.

D  Equal amounts of NaCl crystals will dissolve in both water and methanol.

E  The NaCl crystals will dissolve readily in water but will not dissolve in methanol.

A  All living things are composed of one or more cells.

B  New cells come only from pre-existing cells by cell division.

C  All life is composed of two or more cells, the smallest unit of life are cells, and cell division from pre-existing cells is the only way cell continue to exist.

D  All living organisms are composed of one or more cells, cells are the smallest units of life, and new cells come only from pre-existing cells by cell division.

E  Cells are the smallest unit of living organisms, and new cells form from pre-existing cells by cell division.

A  unselective transportation.

B  barriers separating extracellular and intracellular environments.

C  cell signaling and unselective transportation.

D  ATP synthesis.

E  cell-to-cell adhesion, barriers separating extracellular and intracellular environments, and cell signaling.

F  cell-to-cell adhesion.

A  hydrophobic hydrocarbon chains facing the water and hydrophilic head groups in the middle.

B  hydrophilic hydrocarbon chains facing the water and hydrophobic head groups in the middle.

C  hydrophilic hydrocarbon chains in the middle and hydrophobic head groups facing the water.

D  hydrophobic hydrocarbon chains in the middle and hydrophilic head groups facing the water.

A  plasmid

B  nucleoid

C  RNA strand

D  ribosome

E  nucleolus

A  hydrogen and carbon.

B  oxygen and carbon.

C  carbon and nitrogen.

D  nitrogen and oxygen.

E  hydrogen and oxygen.

A  −CO.

B  −COOH.

C  −NH 2.

D  −SH.

E  −OH.

A  a scientific term for determining the solubility of a substance in water.

B  a measure of solute concentration.

C  often expressed as grams per unit volume.

D  the weight of a solid substance.

E  reflects a measure of the amount of oil dissolved in water.

A  animal cells only.

B  all cells.

C  plant cells only.

D  prokaryotic and plant cells.

E  prokaryotic cells only.

A  build high-throughput machines for the rapid acquisition of biological data

B  analyze genomes from different species.

C  simplify complex problems by scaling up the problem

D  speed up the technological application of scientific knowledge.

E  understand the behavior of entire biological systems by creating models

A  TRUE

B  FALSE

A  breaks down complex molecules to simple ones.

B  forms glucose monomers fromglycogen.

C  is used to form polymers.

D  results in the splitting of a water molecule.

E  form glycerol and fatty acids from triglycerides.

A  shells.

B  bonds.

C  atoms.

D  proteins.

E  molecules.

A  It is impossible to determine anything based on this evidence alone

B  Either bacteria or archaea

C  Eukarya

D  Bacteria

E  Archaea

A  cell

B  colony

C  organ

D  tissue

E  organelle

A  hydrogen bonds and peptide bonds

B  disulfide bonds and hydrogen bonds

C  peptide bonds

D  van der waals interactions

E  hydrophobic bonds

F  hydrogen bonds

A  negative feedback.

B  protein-protein interactions.

C  bio-informatic regulation.

D  catalytic feedback.

E  positive feedback.

A  steroid

B  phosphodiester

C  glycosidic

D  hydrogen

E  peptide

A  3

B  5

C  4

D  2

E  1

A  38.231 mmol

B  3.8231 mmol

C  3823.1 mmol

D  382.31 mmol

A  irregular and long

B  smooth and cuboidal

C  long and wide

D  large and round

A  composition of two subunits.

B  an RNA composition, composition of two subunits, and ribosomal proteins being produced in the cytosol.

C  the cytosol site where all ribosomal components are produced.

D  ribosomal proteins being produced in the cytosol.

E  ribosomes being made of proteins, lipids, and carbohydrates and ribosomal proteins being produced in the cytosol.

F  an RNA composition.

A  organism, nervous system, nervous tissue, molecule, cell

B  organism, nervous system, tissue, cell, organ

C  organism, brain, nervous system, nerve cell, nervous tissue

D  organism, nervous system, nervous tissue, brain

E  organism, nervous system, brain, nervous tissue, nerve cell

A  an increase in pH.

B  the release of H + into the solution.

C  both the release of H + and a decrease in pH.

D  a decrease in pH.

E  both the release of H + and an increase in pH.

A  −OH

B    

C  −SH

D  −COOH

E  −NH 2

F  −PO 4

A  salt.

B  an amphipathic molecule.

C  an ion.

D  oil.

E  a gas.

A  fat that is solid at room temperature.

B  vegetable oil

C  butter.

D  olive oil.

E  beef fat.

A  only alter the primary structure of the protein

B  always alter the biological activity or function of the protein.

C  cause the tertiary structure of the protein to unfold.

D  alter the primary structure of the protein. In addition, it may alter the tertiary structure of the protein, and affect its biological activity.

E  always alter the primary structure of the protein and disrupt its biological activity.

A  R-CO-R

B  R-SH

C  R-NH 2

D  R-PO 4

E  R-OH

A  carbon can form hydrogen bonds with water.

B  carbon can form up to two covalent bonds with other elements.

C  carbon bonds cannot be broken inthe range of temperatures associated with life.

D  carbon can form both polar and nonpolar covalent bonds with various elements.

E  carbon bonds are stronger than any other bond.