Navigation » List of Schools » West Los Angeles College » Physiology » Physiology 101 – Introduction to Human Physiology » Fall 2020 » Lecture Exam 1 (A)
Below are the questions for the exam with the choices of answers:
Question #1
A Transcription of DNA into RNA
B Synthesis and packaging of proteins for secretion from the cell or export to other organelles
C Synthesis of lipids and intracellular storage of calcium ions
D Digestion of engulfed bacteria and cellular debris
E Generation of ATP
Question #2
A TRUE
B FALSE
Question #3
A TRUE
B FALSE
Question #4
A Substance Y will diffuse faster.
B Substance X and Substance Y will diffuse at the same rate, as they are of equal size and concentration.
C Substance X will diffuse faster.
Question #5
A TRUE
B FALSE
Question #6
A The term “tonicity” refers to the effect that a solution has on the degree of stretch or shrinking of the cell membrane.
B The term “osmolarity” refers to the osmotic properties of a solution, regardless of its tonicity.
C Hypoosmotic solutions are always hypotonic.
D Isotonic solutions are always isoosmotic.
E Hypertonic solutions are always hyperosmotic.
Question #7
A TRUE
B FALSE
Question #8
A It will shrink in size.
B It will swell in size.
C It will stay the same size.
D The result can’t be predicted
Question #9
A are not affected by differences in electrical potential across the membrane.
B are nonspecific.
C only allow ions to move from the intracellular fluid out of the cell.
D may open in response to binding a ligand.
E only allow ions to move from the extracellular fluid into the cell.
Question #10
A It is a polar molecule.
B It is a nonpolar molecule.
C It is an amphipathic molecule.
Question #11
A Sorting of proteins destined for various locations in the cell
B Packaging enzymes destined for lysosomes
C Transcribing a signal sequence onto proteins destined for secretion
D Modifying proteins destined for secretion
E Addition of carbohydrate groups to proteins
Question #12
A mitochondria
B endosomes
C ribosomes
D peroxisomes
E lysosomes
Question #13
A They can form different numbers of chemical bonds.
B They have different numbers of electrons.
C They have different numbers of neutrons.
D They have different numbers of protons.
E They have different number of energy shells
Question #14
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 concentration of X inside the cell decrease to 0.5 millimolar.
C A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell shrink.
D 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.
E A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell swell.
Question #15
A only allow ions to move from the intracellular fluid out of the cell.
B may open in response to binding a ligand.
C are not affected by differences in electrical potential across the membrane.
D are nonspecific.
E only allow ions to move from the extracellular fluid into the cell.
Question #16
A plasma membrane.
B mitochondria.
C endoplasmic reticulum.
D nucleus.
E Golgi apparatus.
Question #17
A FALSE
B TRUE
Question #18
A Phagocytosis
B Active transport
C Hyperosmotic vesicular entrapment
D Hydrosmosis
E Pinocytosis
Question #19
A peptide
B chemical
C polypeptide
D polymerase
Question #20
A TRUE
B FALSE
Question #21
A Endosomes
B Lysosomes
C Ribosomes
D Peroxisomes
E Mitochondria
Question #22
A TRUE
B FALSE
Question #23
A FALSE
B TRUE
Question #24
A TRUE
B FALSE
Question #25
A Primary
B Secondary
C Tertiary
D Quaternary
Question #26
A polyunsaturated
B polysaturated
C polypeptide
D polymerase
Question #27
A 6
B 8
C 1
D 2
E 4
Question #28
A TRUE
B FALSE
Question #29
A FALSE
B TRUE
Question #30
A It involves a specific membrane protein that functions as a carrier molecule.
B It is always directly coupled to the splitting of ATP molecules.
C It is the main mechanism fortransportinghydrophobic molecules across membranes.
D There is no limit to how fast it can occur as the concentration gradient becomes larger.
E It always involves the movement of substances against a concentration gradient.
Question #31
A FALSE
B TRUE
Question #32
A Water
B Lipid molecules
C Solutes
D Charged particles
E Glucose
Question #33
A have names generally ending in the suffix “-ose.”
B are polymers of ATP that store large amounts of energy.
C are broken down during chemical reactions they catalyze.
D can be carbohydrate molecules.
E are catalysts in chemical reactions.
Question #34
A TRUE
B FALSE
Question #35
A is synonymous with the term “anabolism.”
B is synonymous with the term “catabolism.”
C refers to any chemical reaction that involves the production of energy.
D refers to the synthesis and breakdown of organic molecules involved in cell structure and function.
E is defined as the covalent modification and activationof a protein with binding sites for organic molecules.
Question #36
A FALSE
B TRUE
Question #37
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 concentration of X inside the cell increase to 1 millimolar.
C A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell swell.
D 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.
E A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell shrink.
Question #38
A FALSE
B TRUE
Question #39
A Making ATP
B Manufacturing ribosomes
C Dividing by mitosis
D Synthesizing lipids
E Breaking down carbohydrates
Question #40
A 100 mM NaCl
B 100 mM MgCl 2
C 400 mM urea
D 200 mM NaCl
E 300 mM glucose
Question #41
A Ion
B Molecule
C Polar
D Atom
E Lipophilic
Question #42
A It has no net electrical charge.
B It is covalent.
C It has opposite electrical charge at each end.
D It is ionized.
Question #43
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 #44
A TRUE
B FALSE
Question #45
A TRUE
B FALSE
Question #46
A FALSE
B TRUE
Question #47
A Some proteins integrated into the membrane serve as channels for the passage of nonpolar molecules through the membrane.
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 The phospholipid bilayer is arranged so that the hydrophilic heads of the phospholipid molecule face the extra- and intracellular fluids.
D Peripheral membrane proteins function as channels associated with transport of ions through the membrane.
E Cholesterol molecules function to transport ions from one side of the plasma membrane to the other.
Question #48
A FALSE
B TRUE
Question #49
A FALSE
B TRUE
Question #50
A Ionic bonds
B Van der Waals forces
C Bonds between two cysteine amino acids
D Covalent bonds between purine and pyrimidine bases
E Hydrogen bonds
Question #51
A 0
B 30
C 1
D 90
E 10
Question #52
A Oxidative phosphorylation
B The breakdown of fatty acids to CO 2 and H 2O
C None of the choices are correct.
D Glycolysis
E Krebs cycle
Question #53
A TRUE
B FALSE
Question #54
A TRUE
B FALSE
Question #55
A Increase blood glucose level
B Decrease blood glucose level
C No effect on blood glucose level
Question #56
A Storing organic chemicals for metabolism
B Providing genetic information
C Regulating the passage of molecules into and out of the cell
D Storing calcium ions
E Generating ATP
Question #57
A By phosphorylating a reactant
B By increasing the temperature of a solution
C By acting as one of the reactant molecules
D By increasing the energy content of the product molecules
E By decreasing the energy of activation
Question #58
A It refers to a network of cytoplasmic filaments.
B It refers to the cellular components of bone.
C It is important for cellular movement.
D It helps to determine a cell’s shape.
E It includes actin filaments.
Question #59
A Saturation
B Accommodation
C Specificity
D Inhibition
E Acclimatization