Lecture Exam 1

A  FALSE

B  TRUE

A  a fatty acid

B  a nucleotide

C  a protein

D  a monosaccharide

E  an amino acid

A  C2H6

B  C2H2

C  CH4

D  C3H8

E  C2H4

A  is called the 2p orbital.

B  can have a maximum of 2 electrons.

C  can have a maximum of 8 electrons.

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

E    

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

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

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

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

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 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 the same number of neutrons as 1H.

A  Adenine will be present in the DNA.

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

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

D  DNA will have a double-stranded structure.

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  polymers.

B  monomers.

C  dimers.

D  isomers.

E  isotopes.

A  possess only hydrophobic properties.

B  possess neither hydrophilic nor hydrophobic properties.

C  tend not to interact with other molecules.

D  possess only hydrophilic properties.

E  possess both hydrophilic and hydrophobic properties.

A  tertiary

B  secondary

C  hepternary

D  primary

E  quaternary

A  a hypothesis

B  a theory

C  a prediction

D  a fact

E  a discovery

A  FALSE

B  TRUE

A  an acidic solution.

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

C  an alkaline solution.

D  None of these choices are correct.

E  having a H+ concentration of 4.

A  carbohydrate

B  lipid

C  DNA

D  protein

E  metabolite

A  They possess the same chemical properties.

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

C  Their atoms and bonds are arranged in different sequences.

D  They differ in their arrangement around a double bond.

E  They have different molecular formulas.

A  proteomics.

B  homeostasis.

C  cellular respiration.

D  metabolism.

E  growth and development.

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

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

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

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

E  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.

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

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

A  unselective transportation.

B  barriers separating extracellular and intracellular environments.

C  ATP synthesis.

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

E  cell-to-cell adhesion.

F  cell signaling and unselective transportation.

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  nucleolus

B  RNA strand

C  plasmid

D  ribosome

E  nucleoid

A  nitrogen and oxygen.

B  oxygen and carbon.

C  hydrogen and carbon.

D  hydrogen and oxygen.

E  carbon and nitrogen.

A  −SH.

B  −CO.

C  −OH.

D  −COOH.

E  −NH 2.

A  often expressed as grams per unit volume.

B  a measure of solute concentration.

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

D  the weight of a solid substance.

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

A  plant cells only.

B  all cells.

C  animal cells only.

D  prokaryotic and plant cells.

E  prokaryotic cells only.

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

B  speed up the technological application of scientific knowledge.

C  understand the behavior of entire biological systems by creating models

D  analyze genomes from different species.

E  simplify complex problems by scaling up the problem

A  FALSE

B  TRUE

A  results in the splitting of a water molecule.

B  breaks down complex molecules to simple ones.

C  form glycerol and fatty acids from triglycerides.

D  forms glucose monomers fromglycogen.

E  is used to form polymers.

A  atoms.

B  proteins.

C  molecules.

D  bonds.

E  shells.

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

B  Archaea

C  Bacteria

D  Either bacteria or archaea

E  Eukarya

A  organ

B  organelle

C  tissue

D  colony

E  cell

A  disulfide bonds and hydrogen bonds

B  hydrophobic bonds

C  hydrogen bonds

D  peptide bonds

E  hydrogen bonds and peptide bonds

F  van der waals interactions

A  positive feedback.

B  negative feedback.

C  catalytic feedback.

D  protein-protein interactions.

E  bio-informatic regulation.

A  steroid

B  peptide

C  glycosidic

D  hydrogen

E  phosphodiester

A  4

B  1

C  5

D  3

E  2

A  382.31 mmol

B  38.231 mmol

C  3.8231 mmol

D  3823.1 mmol

A  irregular and long

B  smooth and cuboidal

C  large and round

D  long and wide

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

B  composition of two subunits.

C  ribosomal proteins being produced in the cytosol.

D  the cytosol site where all ribosomal components are produced.

E  an RNA composition.

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, nervous system, tissue, cell, organ

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

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

B  an increase in pH.

C  a decrease in pH.

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

E  the release of H + into the solution.

A  −SH

B  −NH 2

C    

D  −OH

E  −COOH

F  −PO 4

A  oil.

B  an amphipathic molecule.

C  an ion.

D  a gas.

E  salt.

A  olive oil.

B  beef fat.

C  vegetable oil

D  butter.

E  fat that is solid at room temperature.

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

B  only alter the primary structure of the protein

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

D  cause the tertiary structure of the protein to unfold.

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

A  R-SH

B  R-OH

C  R-CO-R

D  R-NH 2

E  R-PO 4

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

B  carbon bonds are stronger than any other bond.

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

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

E  carbon can form hydrogen bonds with water.