Navigation » List of Schools » West Los Angeles College » Physiology » Physiology 101 – Introduction to Human Physiology » Fall 2020 » Lecture Exam 1(C)
Below are the questions for the exam with the choices of answers:
Question #1
A Ribosomes
B Lysosomes
C Mitochondria
D Peroxisomes
E Endosomes
Question #2
A FALSE
B TRUE
Question #3
A plasma membrane.
B endoplasmic reticulum.
C Golgi apparatus.
D mitochondria.
Question #4
A Synthesizing lipids and intracellular storage of calcium ions
B Modifying proteins synthesized on free ribosomes and allowing the distribution of modified proteins throughout the cell in vesicles
C Digestion of engulfed bacteria and using oxygen to generate ATP
D Modifying proteins synthesized on ribosomes associated with granular endoplasmic reticulum and allowing the distribution of modified proteins throughout the cell in vesicles
E Modifying proteins synthesized on free ribosomes and storing calcium ions
Question #5
A may open in response to binding a ligand.
B are nonspecific.
C only allow ions to move from the intracellular fluid out of the cell.
D only allow ions to move from the extracellular fluid into the cell.
E are not affected by differences in electrical potential across the membrane.
Question #6
A It has no net electrical charge.
B It is ionized.
C It has opposite electrical charge at each end.
D It is covalent.
Question #7
A FALSE
B TRUE
Question #8
A are broken down during chemical reactions they catalyze.
B have names generally ending in the suffix “-ose.”
C are polymers of ATP that store large amounts of energy.
D can be carbohydrate molecules.
E are catalysts in chemical reactions.
Question #9
A 200 mM NaCl
B 100 mM NaCl
C 400 mM urea
D 100 mM MgCl 2
E 300 mM glucose
Question #10
A is a measure of the concentration of free hydrogen ions in the solution.
B increases as the acidity of the solution increases.
C increases as the free hydrogen ion concentration in the solution increases.
D is a measure of the concentration of hydrogen atoms in the solution.
E is a measure of the concentration of hydrogen ions bound to other molecules in the solution.
Question #11
A Simple diffusion
B Secondary active transport
C Primary active transport
D Facilitated diffusion
E None of these can occur without the direct use of ATP
Question #12
A requires an RNA polymerase
B is called translation of the message.
C requires DNA polymerase.
D occurs in the cytoplasm.
E is called transcription of the message.
F produces an RNA transcript
Question #13
A FALSE
B TRUE
Question #14
A unipolar.
B amphipathic.
C hydrophobic.
D hydrophilic.
E bipolar.
Question #15
A Packaging enzymes destined for lysosomes
B Addition of carbohydrate groups to proteins
C Modifying proteins destined for secretion
D Transcribing a signal sequence onto proteins destined for secretion
E Sorting of proteins destined for various locations in the cell
Question #16
A TRUE
B FALSE
Question #17
A It is a nonpolar molecule.
B It is a polar molecule.
C It is an amphipathic molecule.
Question #18
A The ratio of protons to electrons
B The number of protons
C The number of electrons
D The number of bonds it can form
E The number of neutrons
Question #19
A There is no limit to how fast it can occur as the concentration gradient becomes larger.
B It is the main mechanism fortransportinghydrophobic molecules across membranes.
C It involves a specific membrane protein that functions as a carrier molecule.
D It is always directly coupled to the splitting of ATP molecules.
E It always involves the movement of substances against a concentration gradient.
Question #20
A FALSE
B TRUE
Question #21
A Cholesterol molecules function to transport ions from one side of the plasma membrane to the other.
B The plasma membrane is a layer of phospholipid molecules with their hyrophilic head groups in contact with the extracellular solution and the hydrophobic tail groups in contact with the intracellular solution.
C Some proteins integrated into the membrane serve as channels for the passage of nonpolar molecules through the membrane.
D The phospholipid bilayer is arranged so that the hydrophilic heads of the phospholipid molecule face the extra- and intracellular fluids.
E Peripheral membrane proteins function as channels associated with transport of ions through the membrane.
Question #22
A TRUE
B FALSE
Question #23
A FALSE
B TRUE
Question #24
A Oxygen and gases used by metabolism
B Vitamins
C Sugars that were broken down for energy
D Ionic forms of mineral elements
E Lipids that form the membranes of cells
Question #25
A Water
B Lipid molecules
C Glucose
D Charged particles
E Solutes
Question #26
A Decrease blood glucose level
B No effect on blood glucose level
C Increase blood glucose level
Question #27
A Golgi apparatus
B Rough endoplasmic reticulum
C Smooth endoplasmic reticulum
D Lysosome
E Mitochondrion
Question #28
A Hypoosmotic solutions are always hypotonic.
B Isotonic solutions are always isoosmotic.
C Hypertonic solutions are always hyperosmotic.
D The term “osmolarity” refers to the osmotic properties of a solution, regardless of its tonicity.
E The term “tonicity” refers to the effect that a solution has on the degree of stretch or shrinking of the cell membrane.
Question #29
A TRUE
B FALSE
Question #30
A glycogen.
B protein.
C triacylglycerol.
D starch.
E cellulose.
Question #31
A TRUE
B FALSE
Question #32
A FALSE
B TRUE
Question #33
A FALSE
B TRUE
Question #34
A Pinocytosis
B Secondary active transport
C Receptor-mediated endocytosis
D Exocytosis
E Primary active transport
Question #35
A TRUE
B FALSE
Question #36
A FALSE
B TRUE
Question #37
A FALSE
B TRUE
Question #38
A Quaternary
B Primary
C Secondary
D Tertiary
Question #39
A TRUE
B FALSE
Question #40
A Krebs cycle
B The breakdown of fatty acids to CO 2 and H 2O
C None of the choices are correct.
D Glycolysis
E Oxidative phosphorylation
Question #41
A FALSE
B TRUE
Question #42
A Digestion of engulfed bacteria and cellular debris
B Transcription of DNA into RNA
C Synthesis of lipids and intracellular storage of calcium ions
D Generation of ATP
E Synthesis and packaging of proteins for secretion from the cell or export to other organelles
Question #43
A It starts with a promoter, then is followed by a 5′ UTR, a coding sequence and then a 3’UTR
B It starts with a UTR sequence, then is followed by a promoter and then the coding sequence
C It starts with a promoter, then is followed by a 5′ UTR, a 3’UTR and then the coding sequence
D It starts with a promoter, then is followed by a 3′ UTR, a coding sequence and then a 5’UTR
Question #44
A The Na +/K + pump creates an electrical disequilibrium.
B The Na +/K + pump directly uses ATP
C The Na +/K + pump is an example of counter transport.
D The Na +/K + pump creates chemical disequilibrium.
E It is expressed only on select cell types
Question #45
A take place in the cytosol of human cells.
B take place only when no oxygen is present.
C generate ATP and the electron carrier NADH
D generate ATP and electron carriers NADH and FADH2
E produce pyruvate and lactate as end products.
Question #46
A It will swell in size.
B It will shrink in size.
C It will stay the same size.
D The result can’t be predicted
Question #47
A By increasing the temperature of a solution
B By increasing the energy content of the product molecules
C By acting as one of the reactant molecules
D By decreasing the energy of activation
E By phosphorylating a reactant
Question #48
A Hyperosmotic vesicular entrapment
B Active transport
C Phagocytosis
D Hydrosmosis
E Pinocytosis
Question #49
A Ionic bonds
B Van der Waals forces
C Hydrogen bonds
D Bonds between two cysteine amino acids
E Covalent bonds between purine and pyrimidine bases
Question #50
A Making ATP
B Synthesizing lipids
C Breaking down carbohydrates
D Manufacturing ribosomes
E Dividing by mitosis
Question #51
A diffusion through a channel.
B active transport.
C diffusion using a pump.
D simple diffusion.
Question #52
A dipeptide
B polypeptide
C peptide
D monopeptide
Question #53
A TRUE
B FALSE
Question #54
A TRUE
B FALSE
Question #55
A FALSE
B TRUE
Question #56
A TRUE
B FALSE
Question #57
A Inhibition
B Acclimatization
C Accommodation
D Specificity
E Saturation
Question #58
A They have different numbers of electrons.
B They can form different numbers of chemical bonds.
C They have different number of energy shells
D They have different numbers of neutrons.
E They have different numbers of protons.
Question #59
A 6
B 1
C 4
D 8
E 2
Question #60
A A cell is placed into a 1 millimolar solution of substance X and over time you witness the concentration of X inside the cell increase to 5 millimolar.
B A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell shrink.
C A cell is placed into a 1 millimolar solution of substance X and over time you witness the concentration of X inside the cell decrease to 0.5 millimolar.
D A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell swell.
E A cell is placed into a 1 millimolar solution of substance X and over time you witness the concentration of X inside the cell increase to 1 millimolar.
Question #61
A It is important for cellular movement.
B It includes actin filaments.
C It refers to the cellular components of bone.
D It refers to a network of cytoplasmic filaments.
E It helps to determine a cell’s shape.
Question #62
A Providing genetic information
B Regulating the passage of molecules into and out of the cell
C Storing calcium ions
D Storing organic chemicals for metabolism
E Generating ATP