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