Lecture Exam 1

A  TRUE

B  FALSE

A  a monosaccharide

B  a protein

C  a nucleotide

D  a fatty acid

E  an amino acid

A  C3H8

B  CH4

C  C2H2

D  C2H6

E  C2H4

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

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

C  is called the 2p orbital.

D  can have a maximum of 2 electrons.

E  can have a maximum of 8 electrons.

F    

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

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

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 the same number of neutrons as 1H.

B  3H has 2 more neutrons than 1H.

C  3H has 2 more electrons than 1H.

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

E  3H has 2 more protons than 1H.

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

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

C  DNA will have a double-stranded structure.

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

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

F  Adenine will be present in the DNA.

A  dimers.

B  isomers.

C  monomers.

D  isotopes.

E  polymers.

A  tend not to interact with other molecules.

B  possess neither hydrophilic nor hydrophobic properties.

C  possess both hydrophilic and hydrophobic properties.

D  possess only hydrophobic properties.

E  possess only hydrophilic properties.

A  primary

B  hepternary

C  tertiary

D  quaternary

E  secondary

A  a hypothesis

B  a theory

C  a prediction

D  a discovery

E  a fact

A  TRUE

B  FALSE

A  an acidic solution.

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

C  having a H+ concentration of 4.

D  None of these choices are correct.

E  an alkaline solution.

A  metabolite

B  lipid

C  DNA

D  carbohydrate

E  protein

A  They differ in their arrangement around a double bond.

B  Their atoms and bonds are arranged in different sequences.

C  They possess the same chemical properties.

D  They have different molecular formulas.

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

A  cellular respiration.

B  proteomics.

C  homeostasis.

D  metabolism.

E  growth and development.

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

B  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.

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

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

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

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

B  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.

C  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.

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

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

A  cell-to-cell adhesion.

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

C  ATP synthesis.

D  cell signaling and unselective transportation.

E  unselective transportation.

F  barriers separating extracellular and intracellular environments.

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

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

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

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

A  nucleolus

B  nucleoid

C  RNA strand

D  plasmid

E  ribosome

A  oxygen and carbon.

B  hydrogen and oxygen.

C  hydrogen and carbon.

D  carbon and nitrogen.

E  nitrogen and oxygen.

A  −NH 2.

B  −COOH.

C  −OH.

D  −CO.

E  −SH.

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

B  a measure of solute concentration.

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

D  often expressed as grams per unit volume.

E  the weight of a solid substance.

A  plant cells only.

B  prokaryotic cells only.

C  prokaryotic and plant cells.

D  all cells.

E  animal cells only.

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

B  speed up the technological application of scientific knowledge.

C  analyze genomes from different species.

D  understand the behavior of entire biological systems by creating models

E  simplify complex problems by scaling up the problem

A  TRUE

B  FALSE

A  form glycerol and fatty acids from triglycerides.

B  is used to form polymers.

C  forms glucose monomers fromglycogen.

D  breaks down complex molecules to simple ones.

E  results in the splitting of a water molecule.

A  shells.

B  proteins.

C  atoms.

D  molecules.

E  bonds.

A  Bacteria

B  Eukarya

C  Either bacteria or archaea

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

E  Archaea

A  organelle

B  organ

C  cell

D  colony

E  tissue

A  hydrogen bonds

B  van der waals interactions

C  peptide bonds

D  hydrophobic bonds

E  disulfide bonds and hydrogen bonds

F  hydrogen bonds and peptide bonds

A  bio-informatic regulation.

B  catalytic feedback.

C  protein-protein interactions.

D  positive feedback.

E  negative feedback.

A  glycosidic

B  hydrogen

C  phosphodiester

D  peptide

E  steroid

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  large and round

B  smooth and cuboidal

C  long and wide

D  irregular and long

A  ribosomal proteins being produced in the cytosol.

B  composition of two subunits.

C  an RNA composition.

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

E  the cytosol site where all ribosomal components are produced.

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

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

B  organism, nervous system, nervous tissue, brain

C  organism, nervous system, nervous tissue, molecule, cell

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

E  organism, nervous system, tissue, cell, organ

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

B  the release of H + into the solution.

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

D  an increase in pH.

E  a decrease in pH.

A    

B  −NH 2

C  −OH

D  −PO 4

E  −COOH

F  −SH

A  an ion.

B  a gas.

C  oil.

D  an amphipathic molecule.

E  salt.

A  beef fat.

B  fat that is solid at room temperature.

C  olive oil.

D  vegetable oil

E  butter.

A  only alter the primary structure of the protein

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

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

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

E  cause the tertiary structure of the protein to unfold.

A  R-CO-R

B  R-PO 4

C  R-SH

D  R-NH 2

E  R-OH

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

B  carbon can form hydrogen bonds with water.

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

D  carbon bonds are stronger than any other bond.

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