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