Exam 3 Flashcards
AS a physiology lab assignment, Libby filled a beaker with 0.5L water then added 3 mol glucose, 1 mol table salt, and 2 mol FADH2. Libby correctly stated that this solution’s osmolarity was:
A. 12osm
B. 14osm
C. 6osm
D. 7osm
B. 14osm
Sarah will be taking advantage of the empty Shoe to run many 20-yard sprints this Saturday. She correctly expects that these short, high intensity runs will cause her leg’s muscle cells to fully eliminate their oxygen supply. She knows that those cells will be making ATP:
A. Only via substrate level phosphorylation
B. Aerobically
C. In their cytosol and mitochondria
D. Via glycolysis and Krebs cycles
A. Only via substrate level phosphorylation
Which is a correct statement about diffusion?
A. It can occur via channels or transporters
B. Its rate is indirectly related surface area
C. It limits the travel distance for endocrines
D. It is not what causes water to exit/enter cells
A. It can occur via channels or transporters
Which is a correct statement about the cellular metabolic pathways?
A. Substrate level phosphorylation occurs in both cytosol and mitochondria
B. Carbohydrates are the only starting point for energy production
C. Elevated levels of ADP will downregulate these pathways
D. More ATPs are generated due to substrate level than oxidative phosphorylation
A. Substrate level phosphorylation occurs in both cytosol and mitochondria
Via carrier-mediated transport, compounds can move ___ their gradient and ____:
A. With, cost energy
B. Against, cost energy
C. With, have no energy cost
D. Actually, all three of those statements are correct about carrier-mediated transport
D. Actually, all three of those statements are correct about carrier-mediated transport
Dr. Gray was investigating a cell taken from their Patient Y. When placed in a solution of known osmolarity, Patient Y’s cell was observed to shrink. Dr Gray determined that this cell’s osmolarity was ___ thank the known osmolarity of the solution and that water was ____ the cell:
A. Larger, entering
B. Smaller, entering
C. Larger, exiting
D. Smaller, exiting
D. Smaller, exiting
When heading into the Shoe with the rest of her fellow Buckeye’s last Saturday to fill up the currently empty Shoe with scarlet and gray, Caley correctly realized that, based on their movement relative to their gradient, the entrances they all moved through could be analogies for:
A. Carrier-mediated transport
B. Active diffusion
C. Aquaporins
D. Hypotonic channels
A. Carrier-mediated transport
Which is a correct statement about facilitated diffusion?
A. Compounds might follow their concentration gradient
B. Its channels are solute specific
C. It does not require Critical Eq. #1 to move compounds
D. It can be saturated which will impact the direction of diffusion
C. It does not require Critical Eq #1 to move compounds
Which is a correct statement about the junctions between cells?
A. Both gap junctions and desmosomes allow intracellular fluid flow
B. Gap junctions do not allow intracellular fluid flow
C. Tight junctions are formed by claudins
D. All three junctions are created by peripheral proteins
C. Tight junctions are formed by claudins
Which is a correct statement about protein channels?
A. Only ligand-gated channels have binding by the compound being moved through the channel
B. Channels that allow sodium to move through them will not allow chloride to pass through
C. Movement through a voltage-gated potassium channels costs the cell two ATPS
D. All three statements are correct
B. Channels that allow sodium to move through them will not allow chloride to pass through
Which is a correct statement about diffusion?
A. If [X] is greater in Area A than in Area B, X will always move to area B
B. In physiology, diffusion will by stopped by a 0 Kelvin temperature
C. Permeability and temperature both have direct relationships with the rate of diffusion
D. All three statements are correct
C. Permeability and temperature both have direct relationships with the rate of diffusion
While walking across the Oval, Brutus was eating a sweet, juicy apple. Correctly recalling his physiology, Brutus told a passing person that
A. He was breaking down glucose in his largest fluid compartment
B. Each glucose would ATPs to be created by three different methods
C. Both statements are correct
D. Neither statement is correct
A. He was breaking down glucose in his largest fluid compartment
Dr. Scarlet’s Patient X has encountered a pathogen that immediately removes any free glucose within its host. Consequently, Dr. S stated that Patient X
A. Will no longer be able to make ATPs via substrate level phosphorylation
B. Will be able to solve the problem by switching glycolysis to running anaerobically
C. Both statements are correct
D. Neither statement is correct
D. Neither statement is correct
A typical cell is placed in a beaker with typical interstitial fluid. The beaker’s fluid now has its concentration of oxygen double. Which is a correct statement about what will happen to the cell?
A. It will shrink as water exits the cell
B. It will not develop an osmotic pressure
C. Both statements are correct
D. Neither statement is correct
B. It will not develop an osmotic pressure
While preparing for this assessment, your classmate Carmen correctly stated that a red blood cell that is round like a ball:
A. Could be surround by hypertonic interstitial fluid
B. Cannot be experiencing an osmotic pressure
C. Both statements are correct
D. Neither statement is correct
D. Neither statement is correct
