Navigation » List of Schools » West Los Angeles College » Biology » Biology 006 – Genera Biology I » Spring 2021 » Lecture Exam 1
Below are the questions for the exam with the choices of answers:
Question #1
A FALSE
B TRUE
Question #2
A an amino acid
B a protein
C a monosaccharide
D a nucleotide
E a fatty acid
Question #3
A C2H2
B C2H6
C C2H4
D CH4
E C3H8
Question #4
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
F can have a maximum of 8 electrons.
Question #5
A Injection of the dye must occur in the inner membrane space of the mitochondria.
B The Golgi apparatus holds the cytosol, and therefore the dye must be injected there.
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.
Question #6
A 3H has 2 more electrons than 1H.
B 3H has a different electron configuration than 1H.
C 3H has 2 more protons than 1H.
D 3H has 2 more neutrons than 1H.
E 3H has the same number of neutrons as 1H.
Question #7
A DNA will have uracil instead of thymine in its nitrogenous bases.
B DNA will have thymine instead of uracil in its nitrogenous bases.
C DNA will have a double-stranded structure.
D Adenine will be present in the DNA.
E DNA will have a double-stranded structure and DNA will have thymine instead of uracil in its nitrogenous bases.
F DNA will have ribose as the sugar in its backbone and DNA will have uracil instead of thymine in its nitrogenous bases.
Question #8
A isomers.
B polymers.
C monomers.
D dimers.
E isotopes.
Question #9
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.
Question #10
A quaternary
B secondary
C primary
D hepternary
E tertiary
Question #11
A a theory
B a hypothesis
C a fact
D a discovery
E a prediction
Question #12
A FALSE
B TRUE
Question #13
A an alkaline solution.
B None of these choices are correct.
C an acidic solution.
D having a H+ concentration of 4.
E an acidic solution with a H + concentration of 4.
Question #14
A protein
B lipid
C DNA
D carbohydrate
E metabolite
Question #15
A They possess the same chemical properties.
B They have different molecular formulas.
C They have an asymmetric carbon that makes them mirror images.
D They differ in their arrangement around a double bond.
E Their atoms and bonds are arranged in different sequences.
Question #16
A metabolism.
B growth and development.
C proteomics.
D homeostasis.
E cellular respiration.
Question #17
A The NaCl crystals will NOT dissolve in either water or methanol.
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 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 dissolve readily in methanol but will not dissolve in water.
Question #18
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 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 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.
Question #19
A cell-to-cell adhesion, barriers separating extracellular and intracellular environments, and cell signaling.
B unselective transportation.
C cell signaling and unselective transportation.
D ATP synthesis.
E barriers separating extracellular and intracellular environments.
F cell-to-cell adhesion.
Question #20
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.
Question #21
A nucleoid
B nucleolus
C ribosome
D plasmid
E RNA strand
Question #22
A hydrogen and carbon.
B oxygen and carbon.
C hydrogen and oxygen.
D nitrogen and oxygen.
E carbon and nitrogen.
Question #23
A −CO.
B −SH.
C −NH 2.
D −OH.
E −COOH.
Question #24
A often expressed as grams per unit volume.
B reflects a measure of the amount of oil dissolved in water.
C a scientific term for determining the solubility of a substance in water.
D a measure of solute concentration.
E the weight of a solid substance.
Question #25
A all cells.
B plant cells only.
C prokaryotic cells only.
D prokaryotic and plant cells.
E animal cells only.
Question #26
A speed up the technological application of scientific knowledge.
B simplify complex problems by scaling up the problem
C understand the behavior of entire biological systems by creating models
D build high-throughput machines for the rapid acquisition of biological data
E analyze genomes from different species.
Question #27
A TRUE
B FALSE
Question #28
A breaks down complex molecules to simple ones.
B is used to form polymers.
C forms glucose monomers fromglycogen.
D form glycerol and fatty acids from triglycerides.
E results in the splitting of a water molecule.
Question #29
A proteins.
B bonds.
C molecules.
D atoms.
E shells.
Question #30
A Either bacteria or archaea
B It is impossible to determine anything based on this evidence alone
C Bacteria
D Eukarya
E Archaea
Question #31
A organelle
B organ
C colony
D tissue
E cell
Question #32
A hydrogen bonds and peptide bonds
B van der waals interactions
C peptide bonds
D disulfide bonds and hydrogen bonds
E hydrophobic bonds
F hydrogen bonds
Question #33
A negative feedback.
B catalytic feedback.
C positive feedback.
D bio-informatic regulation.
E protein-protein interactions.
Question #34
A hydrogen
B steroid
C phosphodiester
D peptide
E glycosidic
Question #35
A 2
B 4
C 1
D 3
E 5
Question #36
A 382.31 mmol
B 38.231 mmol
C 3.8231 mmol
D 3823.1 mmol
Question #37
A smooth and cuboidal
B long and wide
C irregular and long
D large and round
Question #38
A composition of two subunits.
B the cytosol site where all ribosomal components are produced.
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 an RNA composition.
F ribosomal proteins being produced in the cytosol.
Question #39
A organism, brain, nervous system, nerve cell, nervous tissue
B organism, nervous system, nervous tissue, molecule, cell
C organism, nervous system, tissue, cell, organ
D organism, nervous system, brain, nervous tissue, nerve cell
E organism, nervous system, nervous tissue, brain
Question #40
A the release of H + into the solution.
B both the release of H + and a decrease in pH.
C an increase in pH.
D both the release of H + and an increase in pH.
E a decrease in pH.
Question #41
A −PO 4
B −OH
C −NH 2
D −COOH
E
F −SH
Question #42
A salt.
B an ion.
C oil.
D a gas.
E an amphipathic molecule.
Question #43
A vegetable oil
B beef fat.
C olive oil.
D butter.
E fat that is solid at room temperature.
Question #44
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 always alter the biological activity or function of the protein.
C cause the tertiary structure of the protein to unfold.
D always alter the primary structure of the protein and disrupt its biological activity.
E only alter the primary structure of the protein
Question #45
A R-NH 2
B R-OH
C R-PO 4
D R-SH
E R-CO-R
Question #46
A carbon bonds are stronger than any other bond.
B carbon bonds cannot be broken inthe range of temperatures associated with life.
C carbon can form up to two covalent bonds with other elements.
D carbon can form hydrogen bonds with water.
E carbon can form both polar and nonpolar covalent bonds with various elements.