Midterm 1 Flashcards
- The extracellular fluid is to the _______ as the intracellular fluid is to the _____ and the plasma is to the _______.
Lake erie - atlantic ocean - olentangy river
Atlantic ocean - olentangy river - lake erie
Atlantic ocean - lake erie - olentangy river
Olentangy river - atlantic ocean - lake erie
Lake erie - atlantic ocean - olentangy river
- The removal of clothing layers to combat warm temperatures is an example of
Negative feedback
Positive feedback
Feedforward feedback
Feedforward
negative feedback
- A homeostatic control system ______ requires energy to maintain a parameter at its set point that _____ change over the course of a lifetime.
Sometimes - cannot
Sometimes - can
Always - cannot
Always - can
always - can
- Allen and Usman both started feeling ill on Monday morning. At lunch, Allen drank a glass of milk with Vitamin D but Usman did not since there were no Oreos handy for dunking. Which is a correct statement about Allen and Usman’s illness?
Usman recovered before Allen
Allen recovered before Usman
Usman hindered the actions of his immune system
Allen aided the actions of his immune system
usman recovered before allen
- Epithelial cells are to ____ as muscle cells are to ____.
Mechanical movement - boundaries
Support - boundaries
Boundaries - mechanical movement
Boundaries - support
Boundaries - mechanical movement
11. In the laboratory, compound X is observed moving through a gap junction. Consequently, the scientist correctly hypothesizes that compound X will \_\_\_\_\_ be able to travel through a tunneling nanotube and \_\_\_\_ through a juxtacrine. Never - never Never - usually Always - never Always - usually
Always - never
- A doctor compares the lipodomes of his patient’s liver and kidney cells and determines that they are vastly different. The doctor correctly concludes that his patent
1) Had those two cell types created by meiosis
2) Does have different genomes in those cells
3) Has liver or kidney disease causing the difference
4) Does have different proteomes in those cells
does have different proteomes in those cells
- A doctor compares the lipodomes of his patient’s liver and kidney cells and determines that they are vastly different. The doctor correctly concludes that his patent
1) Had those two cell types created by mitosis
2) Does have different genomes in those cells
3) Has liver or kidney disease causing the difference
4) Does not have different proteomes in those cells
had those two cell types created by mitosis
- The indirect signals of ____ and ____ can be combined because they both ____.
Neurotransmitter - paracrine - travel short distances
Paracrine - neurotransmitter - are released by a limited number of cells
Endocrine - neurotransmitter - move through the fluid between the cells
All three are correct
neurotransmitter - paracrine - travel short distances
- The indirect signals of ____ and ____ can be combined because they both ____.
Neurotransmitter - paracrine - are released by a limited number of cells
Paracrine - neurotransmitter - move through the fluid between the cells
Endocrine - neurotransmitter - travel long distances
All three statements are correct
paracrine - neurotransmitter - move through the fluid between the cells
- The indirect signals of ____ and ____ can be combined because they both ____.
Neurotransmitter - paracrine - travel short distances
Paracrine - neurotransmitter - move through the fluid between the cells
Endocrine - neurotransmitter - are released by a limited number of cells
All are correct
all are correct
- Proactive is to ___ as reactive is to _____.
Higher energy costs - lower energy cost
Negative feedback - feedforward
Feedforward feedback - positive feedback
Integrator first - receptor first
integrator first - receptor first
- Proactive is to ___ as reactive is to _____.
Higher energy cost - lower energy cost
Feedforward - negative feedback
Feedforward feedback - positive feedback
Receptor first - integrator first
feedforward - negative feedback
- When the value of homeostatically controlled parameter changes, the parameter _____ have moved from its set point and ____not be at equilibrium .
Might not - might
Might not - will definitely
Will definitely - might
Will definitely - will definitely
might not - will definitely
- When our Equation 3 causes a decrease in _____, it also causes an increase in _____.
a. HCO3- - pH
b. H+ - CO2
c. CO2 - HCO3-
d. H2O – HCO3-
all of them
- Which is a correct statement about our equations?
Equation 2 contains equation 1
Water is a product of two of the equations
Of the reaction equations, not all are reversible
All three are correct.
all are correct
- Which is a correct statement about our equations?
Equation 3 contains equation 2
Water is a product of only one of the equations
Of the reaction equations, not all are reversible
All three are correct
of the reaction equations, not all are reversible
- A starving Brutus Buckeye sits down to an unlimited buffet of wolverine sliders. Although it takes several hours, he eventually feels full and stops eating. This situation is best described as being an example of
Feedforward feedback
Negative feedback
Both are correct
Neither are correct
negative feedback
- An accident-prone anatomy student got bit by a spider with a deadly venom that prevents communication between cells via extracellular signals. The student experienced
A prevention of his paracrines from reaching their target cells.
A prevention of his juxtacrines from forming properly
A blocking of his gap junction passageways
All three are correct
a prevention of his paracrine from reaching their target cell
- Flaplord Baggins, an alien from planet Gracknack, invades Earth and attaches humans by injecting Crabix into their blood. Fortunately, the invasion was unsuccessful because, while the Crabix flooded the interstitial fluid, it was unable to reach the cytosol of any cell. Later analysis showed that Crabix
Could not cross the capillary walls
Was not impacted by enzymes in the intracellular fluid
Both are correct
Neither is correct
was not impacted by enzymes in the intracellular fluid
- Flaplord Baggins, an alien from planet Gracknack, invades Earth and attaches humans by injecting Crabix into their blood. Fortunately, the invasion was unsuccessful because, while the Crabix flooded the interstitial fluid, it was unable to reach the cytosol of any cell. Later analysis showed that Crabix
Could cross the capillary walls
Was impacted by enzymes in the intracellular fluid
Both statements are correct
Neither is correct
could cross the capillary walls
- Which is a correct statement about biorhythms?
They exist on different time frames like the annual cycle of hair density.
They are controlled by clocks that are derived from internal processes.
Both statements are correct
Neither is correct
both are correct
- Which is a correct statement about biorhythms?
They exist on different time frames like the annual cycle for hair density
They are controlled by clocks that are derived from external processes
Both are correct
Neither is correct
they exist on different time frames like the annual cycle for hair density
- Great coaching buddies Meyer and Matta are usually inseparable around the OSU campus. However, when they go into the Ohio Union, they typically get swarmed by the Buckeye faithful and quickly get separated. The interaction between these coaches could best be described as
Covalent
Polar
Both are correct
Neither is correct
polar
- Great coaching buddies Meyer and Matta are usually inseparable around the OSU campus. However, when they go into the Ohio Union, they typically get swarmed by the Buckeye faithful and quickly get separated. The interaction between these coaches could best be described as
Noncovalent
Polar
Both are correct
Neither is correct
both are correct
- Shh! The phys Phabs are really the mild-mannered sides of the superheroes (like Clark Kent for Superman). For example, Grace is highly bendable and can elongate herself to grab evil doers quite far away then yanks them back to her original spot. Bobby is amazing at combining up superheroes like Grace with others like her to create networks of evil-doing eliminators. In thinking of these superheroes as proteins in our bodies, we could correctly characterize
Grace as elastin of the extracellular matrix
Bobby as fibronectin with his origin being the fibroblasts
Both are correct
Neither is correct
both are correct
- Shh! The phys Phabs are really the mild-mannered sides of the superheroes (like Clark Kent for Superman). For example, Grace is highly bendable and can elongate herself to grab evil doers quite far away then yanks them back to her original spot. Bobby is amazing at combining up superheroes like Grace with others like her to create networks of evil-doing eliminators. In thinking of these superheroes as proteins in our bodies, we could correctly characterize
Grace as elastin of the intracellular matrix
Bobby as fibronectin with his location being within the fibroblasts
Both are correct
Neither is correct
neither is correct
- Which is a correct statement about Krebs cycle?
It is independent of oxygen to create CO2
It does produce CO2
It only causes the further catabolism of sugars
It occurs in the cytosol
it does produce CO2
- Which is a correct statement about Krebs cycle?
It is dependent on oxygen to create ATP
It does not produce CO2
It only causes the further catabolism of sugars
It occurs in the cytosol
it is dependent on oxygen to create ATP
- Which is a correct statement about Krebs cycle?
It is independent of oxygen to create ATP
It does not produce CO2
It causes the further catabolism of sugars
It occurs in the cytosol
it causes the further catabolism of sugars
- The diffusion rate of compound X across the plasma membrane could be increased if the
Width of the membrane was decreased
Cell’s membrane area was doubled
Polarity of X was changed from polar to nonpolar
All three are correct
all are correct
The diffusion rate of compound X across the plasma membrane could be increased if the
Width of the membrane was increased
Cell’s membrane area was halved
Polarity of X was changed from polar to nonpolar
All three are correct
polarity of x was changed from polar to nonpolar
- In the construction of a normal plasma membrane, which of these trios is correctly ordered from largest to smallest based on the combined mass of the compound?
Phospholipids - cholesterol - proteins
Proteins - phospholipids - cholesterol
Cholesterol - phospholipids - proteins
Cannot be ordered because phospholipids and cholesterol have the same mass
proteins - phospholipids - choesterole
- Which of the following is a function of glycocalyx?
Allow for identification of the integral proteins
Prevent damage to the cell’s plasma membrane
Limit the growth of cells in the cytosol
Regulate the presence of peripheral proteins
prevent damage to cell’s PM
- A cell is present within a solution. Salt is added to that solution causing ____ channels to open.
Leak
Mechanically-gated
Voltage-gated
All three will get opened
voltage gated
- Which is NOT a net product of Krebs cycle?
NAD+
ATP
CO2
All three are products
NAD+
- Amphipathic compounds will interact with and remain associated with
Hydrophilic compounds
Cholesterol
Peripheral proteins
All three of these is correct
all are correct
15.No intracellular fluid but extracellular fluid movement is allowed by ____ junctions that are composed of _____.
Tight - claudins
Tight - cadherins
Desmosome - claudins
Desmosome - cadherins
desmosomes - cadherins
- We need to make adjustments to our Eq. _____ to understand the process of _____.
1 - oxidative phosphorylation
1 - substrate level phosphorylation
2 - oxidative phosphorylation
2 - substrate level phosphorylation
1- substrate level phosphorylation
- Hydrophobic is to ___ as hydrophilic is to______.
Nonpolar - polar
Lipophilic - hydrophobic
Polar - lipophobic
Lipophobic - polar
nonpolar - polar
- Hydrophobic is to ___ as hydrophilic is to______.
Nonpolar- lipophilic
Lipophilic - hydrophobic
Polar - lipophobic
Lipophobic - lipophilic
lipophobic - lipophilic
- The net movement of compounds A and B is toward the plasma membrane and not based on any energy usage by the person. At the plasma membrane, compound A continues moving into the cytosol but compound B does not move into the cytosol. Which is a correct statement about these two compounds?
They might both be small and nonpolar
They might both be ions
Compound A might be hydrophobic while compound B is hydrophilic.
All three statements are correct
all are correct
- Jax, the overly energetic pooch (aka dog), loves to chase his BFFs David and Allen. However, to attend lectures, David and Allen cross the electric fence surrounding Jax’s yard. Jax cannot cross the fence. If we think of this yard as like a cell, then David and Allen are most likely ____ and the fence is most likely like _____.
Sodium and potassium - voltage-gated channel
CO2 and O2 - plasma membrane
Both statements are correct
Neither is correct
CO2 and O2 - plasma membrane
- Brutus Buckeye loves doing experiments in the lab. This week he used a strong detergent to remove all of the integral proteins from a cell’s plasma membrane. Which is a correct statement about the plasma membrane after this treatment?
Reduced number of amphipathic components
There is less movement of water across it
Both statements are correct
Neither is correct
both are correct
- Brutus Buckeye loves doing experiments in the lab. This week he used a strong detergent to remove all of the integral proteins from a cell’s plasma membrane. Which is a correct statement about the plasma membrane after this treatment?
Reduced number of amphipathic components
There is more movement of water across it
Both are correct
Neither is correct
reduced number of amphipathic components
- Brutus Buckeye loves doing experiments in the lab. This week he used a strong detergent to remove all of the integral proteins from a cell’s plasma membrane. Which is a correct statement about the plasma membrane after this treatment?
Increased number of amphipathic components
There is less movement of water across it
Both statements are correct
Neither is correct
there is less movement of water across it
- Brutus Buckeye loves doing experiments in the lab. This week he used a strong detergent to remove all of the integral proteins from a cell’s plasma membrane. Which is a correct statement about the plasma membrane after this treatment?
Increased number of amphipathic components
There is less movement of water across it
Both statements are correct
Neither is correct
there is less movement of water across it
- An enterprising, young physiology student finds a test tube that is correctly labeled “pure phospholipids”. He dumps the tube’s contents into a large beaker containing a lipophilic solution. As he correctly expected, the phospholipids spontaneously form a 3D structure that he correctly states has
The phospholipid’s head pointing outward (i.e. toward the solution)
The phospholipid creating a sandwich like structure with the tails as the “bread”
Both statements are correct
Neither statement is correct
The phospholipid creating a sandwich like structure with the tails as the “bread”
- An enterprising, young physiology student finds a test tube that is correctly labeled “pure phospholipids”. He dumps the tube’s contents into a large beaker containing a lipophilic solution. As he correctly expected, the phospholipids spontaneously form a 3D structure that he correctly states has
The phospholipid’’ head pointing inward ( i.e. away from the solution)
The phospholipids creating a sandwich like structure with the heads as the “bread”
Both are correct
Neither is correct
The phospholipid’’ head pointing inward ( i.e. away from the solution)
- After taking a wrong turn in the depths of the Shoe, great coaching buddies Meyer and Matta find themselves inadvertently locked in a very well-sealed (i.e., no input of fresh oxygen) and small room. After sitting around for a few hours, both are bored and decide to spend their time doing jumping jacks to pass the time. Which is a correct statement about their cell metabolism at this point?
The activity of their electron transport chain is getting reduced
The proportion of ATP created by substrate level phosphorylation is increasing
Both statements are correct
Neither statement is correct
both are correct
- After taking a wrong turn in the depths of the Shoe, great coaching buddies Meyer and Matta find themselves inadvertently locked in a very well-sealed (i.e., no input of fresh oxygen) and small room. After sitting around for a few hours, both are bored and decide to spend their time doing jumping jacks to pass the time. Which is a correct statement about their cell metabolism at this point?
The activity of their electron transport chain is getting increased
The proportion of ATP created by substrate level phosphorylation is decreasing
Both are correct
Neither is correct
neither is correct
- Shh! The Phys Phabs are really the mild-mannered sides of superheroes (like Clark Kent for Superman). For example, at a recent superhero convention, Spencer and his fellow Superheroes was stunned to see through the open window in the convention center that a little old lady was getting mugged by a villain. What must be correct to allow Spencer to reach the lady as quickly as possible?
Widely opened window
Short distance to the crime
Both statements are correct
Neither statement is correct
both are correct
- Shh! The Phys Phabs are really the mild-mannered sides of superheroes (like Clark Kent for Superman). For example, at a recent superhero convention, Spencer and his fellow Superheroes was stunned to see through the open window in the convention center that a little old lady was getting mugged by a villain. What must be correct to allow Spencer to reach the lady as quickly as possible?
Narrow down the window’s opening
Short distance to the crime
Both statements are correct
Neither statement is correct
short distance to the crime
- An accident-prone anatomy student finds herself lost in the boiler room of Independence Hall. She sees a system of pipes that transport fluid between large tanks. She crawls past these pipes to see if there is an exit on the other side of the tanks. If we consider the tanks to be cells held together by junctions, then she is crawling past
Cadherine
Desmosomes
Both are correct
Neither is correct
neither is correct
- An accident-prone anatomy student finds herself lost in the boiler room of Independence Hall. She sees a system of pipes that transport fluid between large tanks. She crawls past these pipes to see if there is an exit on the other side of the tanks. If we consider the tanks to be cells held together by junctions, then she is crawling past
Cadherins
Gap junctions
Both are correct
Neither is correct
gap junctions
- After last week’s failed attempt, Flarplord Baggins tweaked Crabix such that it now can cross the plasma membrane. Once in the cell, Crabix dramatically reduces, without eliminating, ATP production but not altering pyruvate production. Which is a correct statement about this version of Crabix?
It cannot enter the mitochondria
It does not prevent all recycling of NADH
Both statements are correct
Neither statement is correct
it does not prevent all recycling of NADH
An accident prone anatomy student is admitted to the hospital for an injury. Since the medical staff was very busy, the janitor decided to help out by replacing the student’s empty IV bag with a full bag of pure water. After finding out what the janitor had done, the student’s doctor realized the she must act fast because the janitor’s addition of a ____ solution to the student’s blood is causing his red blood cells to ____.
Hypertonic - collapse on themselves (implode)
Hypotonic - collapse on themselves (implode)
Hypertonic - burst/rupture
Hypotonic - burst/rupture
hypotonic - burst/rupture
- The sodium/potassium ATPase pump moves ___ ions into the cell and uses up ___ ATP(s) per one complete cycle.
Less-1
Less-2
More-1
More-2
less - 1
- Which is a correct statement about endocytosis?
It requires both ADP and cholesterol
It increases most growth factor communication
It increases the cell’s surface area
It does not allow for the release of cytokines
it does not allow for release of cytokines
- Which is a correct statement about endocytosis?
It requires both ATP and cholesterol
It increases most growth factor communication
It increases the cell’s surface area
It does allow for the release of cytokines
it requires both ATP and cholesterol
.Which is a correct statement about endocytosis?
It requires both ADP and cholesterol
It decreases most growth factor communication
It increases the cell’s surface area
It does allow for the release of cytokines
it decreases most growth factor communication
- G-proteins are
A heterotrimeric, transmembrane proteins
Created with atleast sigma gamma subunit
Never ion channels
Usually impacted by neurotransmitters
never ion channels
- G-proteins are
A heterotrimeric, transmembrane proteins
Created with at least one sigma subunit
Sometimes ion channels
Not usually impacted by neurotransmitters
not usually impacted by neurotransmitters
- For the creation of a complex with their receptor, nonpolar ligands could be present in the ___ and hydrophobic ligands could be present in the ____.
Cytosol -nucleus
Intracellular fluid - interstitial fluid
Plasma membrane - interstitial fluid
Vesicles - plasma membrane
cytosol - nucleus
- The G-protein ____ be an ion channel. It has ___ part(s) that regularly associate(s) with two other proteins.
Can-three
Can-one
Cannot-three
Cannot-one
cannot - one
- The solution S causes the cells placed within it to lose all of their ATP. Consequently, for cells placed in this solution, their sodium/potassium ATPase pumps ___ be open to the cytosol and glucose ___ be able to enter these cells.
Could not- will
Could- will
Could not- will not
Could- will not
could - will
- Which situation would NOT be a contributing factor to the development of an osmotic pressure?
The cell using up its oxygen supply
The cell being unable to be able to expand due to crowding caused by neighboring cells
The cell closing all of its sodium channels
All 3 situations can be contributors.
the cell using up its oxygen supply