Lecture Exam 1

A  TRUE

B  FALSE

A  a monosaccharide

B  a nucleotide

C  a fatty acid

D  an amino acid

E  a protein

A  C2H2

B  CH4

C  C2H6

D  C2H4

E  C3H8

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

B  is called the 2p orbital.

C  can have a maximum of 2 electrons.

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

E    

F  can have a maximum of 8 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 a different electron configuration than 1H.

B  3H has 2 more electrons than 1H.

C  3H has 2 more neutrons than 1H.

D  3H has the same number of neutrons as 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 a double-stranded structure.

C  Adenine will be present in the DNA.

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

A  isomers.

B  polymers.

C  isotopes.

D  monomers.

E  dimers.

A  possess both hydrophilic and hydrophobic properties.

B  possess only hydrophobic properties.

C  tend not to interact with other molecules.

D  possess neither hydrophilic nor hydrophobic properties.

E  possess only hydrophilic properties.

A  hepternary

B  tertiary

C  primary

D  quaternary

E  secondary

A  a theory

B  a hypothesis

C  a prediction

D  a fact

E  a discovery

A  TRUE

B  FALSE

A  an alkaline solution.

B  an acidic solution.

C  having a H+ concentration of 4.

D  None of these choices are correct.

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

A  lipid

B  protein

C  metabolite

D  DNA

E  carbohydrate

A  They differ in their arrangement around a double bond.

B  They possess the same chemical properties.

C  Their atoms and bonds are arranged in different sequences.

D  They have different molecular formulas.

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

A  homeostasis.

B  metabolism.

C  cellular respiration.

D  growth and development.

E  proteomics.

A  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.

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

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

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

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

A  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.

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

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

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

A  barriers separating extracellular and intracellular environments.

B  unselective transportation.

C  cell signaling and unselective transportation.

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

E  ATP synthesis.

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

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

A  nucleoid

B  ribosome

C  nucleolus

D  plasmid

E  RNA strand

A  oxygen and carbon.

B  nitrogen and oxygen.

C  hydrogen and oxygen.

D  carbon and nitrogen.

E  hydrogen and carbon.

A  −NH 2.

B  −SH.

C  −OH.

D  −COOH.

E  −CO.

A  often expressed as grams per unit volume.

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

C  a measure of solute concentration.

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  prokaryotic cells only.

D  prokaryotic and plant cells.

E  plant cells only.

A  speed up the technological application of scientific knowledge.

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

C  understand the behavior of entire biological systems by creating models

D  simplify complex problems by scaling up the problem

E  analyze genomes from different species.

A  FALSE

B  TRUE

A  forms glucose monomers fromglycogen.

B  results in the splitting of a water molecule.

C  form glycerol and fatty acids from triglycerides.

D  breaks down complex molecules to simple ones.

E  is used to form polymers.

A  bonds.

B  molecules.

C  atoms.

D  proteins.

E  shells.

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

B  Archaea

C  Bacteria

D  Eukarya

E  Either bacteria or archaea

A  organelle

B  tissue

C  colony

D  organ

E  cell

A  hydrogen bonds

B  hydrophobic bonds

C  hydrogen bonds and peptide bonds

D  peptide bonds

E  disulfide bonds and hydrogen bonds

F  van der waals interactions

A  protein-protein interactions.

B  positive feedback.

C  bio-informatic regulation.

D  negative feedback.

E  catalytic feedback.

A  steroid

B  peptide

C  hydrogen

D  glycosidic

E  phosphodiester

A  1

B  3

C  5

D  2

E  4

A  382.31 mmol

B  3823.1 mmol

C  38.231 mmol

D  3.8231 mmol

A  smooth and cuboidal

B  large and round

C  irregular and long

D  long and wide

A  an RNA composition.

B  ribosomal proteins being produced in the cytosol.

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

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

E  composition of two subunits.

F  the cytosol site where all ribosomal components are produced.

A  organism, nervous system, tissue, cell, organ

B  organism, nervous system, nervous tissue, brain

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

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

E  organism, nervous system, nervous tissue, molecule, cell

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

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

C  the release of H + into the solution.

D  an increase in pH.

E  a decrease in pH.

A  −COOH

B  −OH

C  −NH 2

D    

E  −PO 4

F  −SH

A  oil.

B  an ion.

C  an amphipathic molecule.

D  a gas.

E  salt.

A  butter.

B  beef fat.

C  fat that is solid at room temperature.

D  vegetable oil

E  olive oil.

A  only alter the primary structure of the protein

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

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  cause the tertiary structure of the protein to unfold.

A  R-CO-R

B  R-OH

C  R-NH 2

D  R-PO 4

E  R-SH

A  carbon can form hydrogen bonds with water.

B  carbon bonds are stronger than any other bond.

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

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

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