Navigation » List of Schools » West Los Angeles College » Physiology » Physiology 101 – Introduction to Human Physiology » Fall 2020 » Lecture Exam 1
Below are the questions for the exam with the choices of answers:
Question #1
A FALSE
B TRUE
Question #2
A FALSE
B TRUE
Question #3
A active transport.
B diffusion using a pump.
C simple diffusion.
D diffusion through a channel.
Question #4
A TRUE
B FALSE
Question #5
A 2 molecules of ATP, 2 molecules of water, and 2 molecules of lactate
B 2 molecules of pyruvate, 2 molecules of lactate, and 2 ATP
C 2 molecules of pyruvate, 2 molecules of water, and 2 NADH
D 2 molecules of NADH and 2 molecules of water
E 2 molecules of pyruvate and 36 molecules of ATP
Question #6
A Modifying proteins synthesized on free ribosomes and allowing the distribution of modified proteins throughout the cell in vesicles
B Synthesizing lipids and intracellular storage of calcium ions
C Modifying proteins synthesized on free ribosomes and storing calcium ions
D Modifying proteins synthesized on ribosomes associated with granular endoplasmic reticulum and allowing the distribution of modified proteins throughout the cell in vesicles
E Digestion of engulfed bacteria and using oxygen to generate ATP
Question #7
A TRUE
B FALSE
Question #8
A TRUE
B FALSE
Question #9
A FALSE
B TRUE
Question #10
A FALSE
B TRUE
Question #11
A Peripheral membrane proteins function as channels associated with transport of ions through the membrane.
B Some proteins integrated into the membrane serve as channels for the passage of nonpolar molecules through the membrane.
C The phospholipid bilayer is arranged so that the hydrophilic heads of the phospholipid molecule face the extra- and intracellular fluids.
D Cholesterol molecules function to transport ions from one side of the plasma membrane to the other.
E 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.
Question #12
A Isotonic solutions are always isoosmotic.
B Hypertonic solutions are always hyperosmotic.
C The term “tonicity” refers to the effect that a solution has on the degree of stretch or shrinking of the cell membrane.
D Hypoosmotic solutions are always hypotonic.
E The term “osmolarity” refers to the osmotic properties of a solution, regardless of its tonicity.
Question #13
A None of the choices are correct.
B Glycolysis
C The breakdown of fatty acids to CO 2 and H 2O
D Oxidative phosphorylation
E Krebs cycle
Question #14
A FALSE
B TRUE
Question #15
A Simple diffusion
B Facilitated diffusion
C Primary active transport
D Secondary active transport
E None of these can occur without the direct use of ATP
Question #16
A FALSE
B TRUE
Question #17
A 400 mM urea
B 100 mM MgCl 2
C 200 mM NaCl
D 100 mM NaCl
E 300 mM glucose
Question #18
A take place only when no oxygen is present.
B generate ATP and electron carriers NADH and FADH2
C produce pyruvate and lactate as end products.
D take place in the cytosol of human cells.
E generate ATP and the electron carrier NADH
Question #19
A Increase blood glucose level
B No effect on blood glucose level
C Decrease blood glucose level
Question #20
A peroxisomes
B lysosomes
C mitochondria
D ribosomes
E endosomes
Question #21
A TRUE
B FALSE
Question #22
A TRUE
B FALSE
Question #23
A TRUE
B FALSE
Question #24
A Monosaccharides
B Cholesterol
C Phospholipids
D Amino acids
E Nucleotides
Question #25
A TRUE
B FALSE
Question #26
A It starts with a promoter, then is followed by a 5′ UTR, a 3’UTR and then the coding sequence
B It starts with a promoter, then is followed by a 3′ UTR, a coding sequence and then a 5’UTR
C It starts with a promoter, then is followed by a 5′ UTR, a coding sequence and then a 3’UTR
D It starts with a UTR sequence, then is followed by a promoter and then the coding sequence
Question #27
A Storing organic chemicals for metabolism
B Generating ATP
C Storing calcium ions
D Regulating the passage of molecules into and out of the cell
E Providing genetic information
Question #28
A It is always directly coupled to the splitting of ATP molecules.
B There is no limit to how fast it can occur as the concentration gradient becomes larger.
C It is the main mechanism fortransportinghydrophobic molecules across membranes.
D It involves a specific membrane protein that functions as a carrier molecule.
E It always involves the movement of substances against a concentration gradient.
Question #29
A TRUE
B FALSE
Question #30
A It is covalent.
B It is ionized.
C It has no net electrical charge.
D It has opposite electrical charge at each end.
Question #31
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 only allow ions to move from the extracellular fluid into the cell.
E are nonspecific.
Question #32
A TRUE
B FALSE
Question #33
A Breaking down carbohydrates
B Making ATP
C Manufacturing ribosomes
D Synthesizing lipids
E Dividing by mitosis
Question #34
A It refers to a network of cytoplasmic filaments.
B It includes actin filaments.
C It is important for cellular movement.
D It refers to the cellular components of bone.
E It helps to determine a cell’s shape.
Question #35
A Transcribing a signal sequence onto proteins destined for secretion
B Sorting of proteins destined for various locations in the cell
C Packaging enzymes destined for lysosomes
D Addition of carbohydrate groups to proteins
E Modifying proteins destined for secretion
Question #36
A Peroxisomes
B Lysosomes
C Endosomes
D Ribosomes
E Mitochondria
Question #37
A Secondary
B Tertiary
C Primary
D Quaternary
Question #38
A FALSE
B TRUE
Question #39
A Substance X will diffuse faster.
B Substance Y will diffuse faster.
C Substance X and Substance Y will diffuse at the same rate, as they are of equal size and concentration.
Question #40
A TRUE
B FALSE
Question #41
A TRUE
B FALSE
Question #42
A A cation
B A new element
C A free radical
D A covalent molecule
E An anion
Question #43
A amphipathic.
B bipolar.
C hydrophobic.
D hydrophilic.
E unipolar.
Question #44
A TRUE
B FALSE
Question #45
A Phagocytosis
B Hydrosmosis
C Pinocytosis
D Hyperosmotic vesicular entrapment
E Active transport
Question #46
A It will stay the same size.
B It will swell in size.
C It will shrink in size.
D The result can’t be predicted
Question #47
A TRUE
B FALSE
Question #48
A TRUE
B FALSE
Question #49
A A cell is placed into a 1 millimolar solution of substance X and over time you witness the size of the cell shrink.
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 increase to 5 millimolar.
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 decrease to 0.5 millimolar.
Question #50
A 6
B 1
C 8
D 4
E 2
Question #51
A Hydrogen bonds
B Bonds between two cysteine amino acids
C Ionic bonds
D Covalent bonds between purine and pyrimidine bases
E Van der Waals forces
Question #52
A TRUE
B FALSE
Question #53
A They have different number of energy shells
B They have different numbers of protons.
C They have different numbers of electrons.
D They can form different numbers of chemical bonds.
E They have different numbers of neutrons.
Question #54
A Glucose
B Solutes
C Charged particles
D Lipid molecules
E Water