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