Lecture Exam 1

A  FALSE

B  TRUE

A  a monosaccharide

B  a fatty acid

C  a protein

D  an amino acid

E  a nucleotide

A  C2H6

B  C2H2

C  C2H4

D  C3H8

E  CH4

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

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

C  can have a maximum of 8 electrons.

D  can have a maximum of 2 electrons.

E    

F  is called the 2p orbital.

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

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

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

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

A  3H has 2 more protons than 1H.

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

C  3H has 2 more neutrons than 1H.

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

E  3H has 2 more electrons than 1H.

A  DNA will have a double-stranded structure.

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

C  Adenine will be present in the DNA.

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

A  isotopes.

B  polymers.

C  dimers.

D  isomers.

E  monomers.

A  possess only hydrophobic properties.

B  possess neither hydrophilic nor hydrophobic properties.

C  possess both hydrophilic and hydrophobic properties.

D  tend not to interact with other molecules.

E  possess only hydrophilic properties.

A  hepternary

B  secondary

C  primary

D  quaternary

E  tertiary

A  a hypothesis

B  a prediction

C  a theory

D  a fact

E  a discovery

A  TRUE

B  FALSE

A  an alkaline solution.

B  having a H+ concentration of 4.

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

D  an acidic solution.

E  None of these choices are correct.

A  metabolite

B  carbohydrate

C  protein

D  lipid

E  DNA

A  Their atoms and bonds are arranged in different sequences.

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

C  They differ in their arrangement around a double bond.

D  They have different molecular formulas.

E  They possess the same chemical properties.

A  proteomics.

B  growth and development.

C  cellular respiration.

D  metabolism.

E  homeostasis.

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

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

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

D  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.

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

A  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.

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

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

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

E  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.

A  cell-to-cell adhesion.

B  cell signaling and unselective transportation.

C  unselective transportation.

D  barriers separating extracellular and intracellular environments.

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

F  ATP synthesis.

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

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

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

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

A  ribosome

B  nucleoid

C  plasmid

D  RNA strand

E  nucleolus

A  carbon and nitrogen.

B  oxygen and carbon.

C  hydrogen and carbon.

D  nitrogen and oxygen.

E  hydrogen and oxygen.

A  −COOH.

B  −SH.

C  −OH.

D  −CO.

E  −NH 2.

A  often expressed as grams per unit volume.

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

C  the weight of a solid substance.

D  a measure of solute concentration.

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

A  plant cells only.

B  prokaryotic and plant cells.

C  animal cells only.

D  prokaryotic cells only.

E  all cells.

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

B  understand the behavior of entire biological systems by creating models

C  speed up the technological application of scientific knowledge.

D  simplify complex problems by scaling up the problem

E  analyze genomes from different species.

A  FALSE

B  TRUE

A  form glycerol and fatty acids from triglycerides.

B  breaks down complex molecules to simple ones.

C  forms glucose monomers fromglycogen.

D  results in the splitting of a water molecule.

E  is used to form polymers.

A  atoms.

B  bonds.

C  shells.

D  molecules.

E  proteins.

A  Either bacteria or archaea

B  Bacteria

C  Eukarya

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

E  Archaea

A  tissue

B  cell

C  colony

D  organ

E  organelle

A  disulfide bonds and hydrogen bonds

B  van der waals interactions

C  hydrophobic bonds

D  hydrogen bonds and peptide bonds

E  hydrogen bonds

F  peptide bonds

A  protein-protein interactions.

B  catalytic feedback.

C  positive feedback.

D  bio-informatic regulation.

E  negative feedback.

A  hydrogen

B  glycosidic

C  peptide

D  steroid

E  phosphodiester

A  3

B  1

C  5

D  4

E  2

A  382.31 mmol

B  3823.1 mmol

C  3.8231 mmol

D  38.231 mmol

A  irregular and long

B  long and wide

C  large and round

D  smooth and cuboidal

A  an RNA composition.

B  composition of two subunits.

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

D  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, tissue, cell, organ

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

D  organism, nervous system, nervous tissue, brain

E  organism, nervous system, nervous tissue, molecule, 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  −COOH

C    

D  −NH 2

E  −PO 4

F  −SH

A  oil.

B  an ion.

C  a gas.

D  salt.

E  an amphipathic molecule.

A  vegetable oil

B  olive oil.

C  butter.

D  beef fat.

E  fat that is solid at room temperature.

A  only alter the primary structure of the protein

B  cause the tertiary structure of the protein to unfold.

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

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-NH 2

C  R-OH

D  R-SH

E  R-PO 4

A  carbon bonds are stronger than any other bond.

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

C  carbon can form hydrogen bonds with water.

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

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