BIO 214 | YOUR SHORTCUT TO SUCCESS | TRUSTED,
TESTED, AND TRUE!
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane. If the surrounding plasma which
contains 35% potassium, which way will the solute move? - Answer: into the cell
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane. If the surrounding plasma which
contains 35% potassium, then the plasma is ______________ to the cell. - Answer:
Hypertonic
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane exists in plasma consisting of 35%
potassium. What type of transportation is this scenario? - Answer: Facilitated Diffusion
Which of the following require the cell to use ATP?
None of the choices are correct
Endocytosis
Facilitated diffusion
Osmosis
Diffusion - Answer: Endocytosis
An organism that grows slowly in the cold but has an optimum growth temperature of 32
degrees Celcius is called a(n):
Psychrophile
Thermophile
Facultative psychrophile
Extremophile - Answer: Facultative psychrophile
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,A microorganism that does not have catalase or superoxide dismutase would find it
difficult to live in an environment with ____.
Carbon dioxide
High alkalinity
Oxygen
High salt
High acidity - Answer: Oxygen
An organism that uses carbon dioxide for its carbon needs and sunlight for its energy
needs would be called a/an:
Photoautotroph
Halotroph
Heterotroph
Saprobe
Chemoheterotroph - Answer: Photoautotroph
A barophile would grow best in ________.
Acid pools
Salt lakes
Hot geyser springs
Arid, desert soil
Deep oceans - Answer: Deep oceans
Identify the stage labeled A, in the typical growth curve for a bacterium above.
Death phase
Exponential growth or Log
Lag
Stationary phase - Answer: Lag
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Escherichia coli bacterium doubles every 20 minutes and you have a starting inoculum
of 20 colony forming units (CFU). How many colony forming units (CFU) will be present
after 3 hours?
2,560 CFU
5,120 CFU
10,240 CFU
20,480 CFU - Answer: 10,240 CFU
When microbes live independently but cooperate and share nutrients allowing both
organisms to benefit, it is called _____________.
Mutualism
Synergism
Parasitism
Antagonism
Commensal - Answer: Synergism
The 2014 Ebola outbreak is the largest in history and the first Ebola epidemic the world
has ever known, effecting multilple countries in West Africa, especially Liberia. Since
March 25, 2014, there have been 6,574 documented cases of Ebola in Liberia (current
total population = 4.294 million) and of those there were 3,091 deaths. What is the
prevalence of the Liberian Ebola Outbreak?
3,091/4.294 million x 100 =
3,483/ 4.294 million x 100 =
9,665/ 4.294 million x 100 =
6,574/4.294 million x 100 = - Answer: 6,574/4.294 million x 100 =
What term would best describe the avian influenza outbreak, when it spreads from
Texas to Georgia and has higher than the normal expected illnesses?
Endemic
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
TESTED, AND TRUE!
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane. If the surrounding plasma which
contains 35% potassium, which way will the solute move? - Answer: into the cell
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane. If the surrounding plasma which
contains 35% potassium, then the plasma is ______________ to the cell. - Answer:
Hypertonic
A red blood cell made up of 15% potassium has a sodium potassium channel that
moves the potassium ions across the cell membrane exists in plasma consisting of 35%
potassium. What type of transportation is this scenario? - Answer: Facilitated Diffusion
Which of the following require the cell to use ATP?
None of the choices are correct
Endocytosis
Facilitated diffusion
Osmosis
Diffusion - Answer: Endocytosis
An organism that grows slowly in the cold but has an optimum growth temperature of 32
degrees Celcius is called a(n):
Psychrophile
Thermophile
Facultative psychrophile
Extremophile - Answer: Facultative psychrophile
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,A microorganism that does not have catalase or superoxide dismutase would find it
difficult to live in an environment with ____.
Carbon dioxide
High alkalinity
Oxygen
High salt
High acidity - Answer: Oxygen
An organism that uses carbon dioxide for its carbon needs and sunlight for its energy
needs would be called a/an:
Photoautotroph
Halotroph
Heterotroph
Saprobe
Chemoheterotroph - Answer: Photoautotroph
A barophile would grow best in ________.
Acid pools
Salt lakes
Hot geyser springs
Arid, desert soil
Deep oceans - Answer: Deep oceans
Identify the stage labeled A, in the typical growth curve for a bacterium above.
Death phase
Exponential growth or Log
Lag
Stationary phase - Answer: Lag
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Escherichia coli bacterium doubles every 20 minutes and you have a starting inoculum
of 20 colony forming units (CFU). How many colony forming units (CFU) will be present
after 3 hours?
2,560 CFU
5,120 CFU
10,240 CFU
20,480 CFU - Answer: 10,240 CFU
When microbes live independently but cooperate and share nutrients allowing both
organisms to benefit, it is called _____________.
Mutualism
Synergism
Parasitism
Antagonism
Commensal - Answer: Synergism
The 2014 Ebola outbreak is the largest in history and the first Ebola epidemic the world
has ever known, effecting multilple countries in West Africa, especially Liberia. Since
March 25, 2014, there have been 6,574 documented cases of Ebola in Liberia (current
total population = 4.294 million) and of those there were 3,091 deaths. What is the
prevalence of the Liberian Ebola Outbreak?
3,091/4.294 million x 100 =
3,483/ 4.294 million x 100 =
9,665/ 4.294 million x 100 =
6,574/4.294 million x 100 = - Answer: 6,574/4.294 million x 100 =
What term would best describe the avian influenza outbreak, when it spreads from
Texas to Georgia and has higher than the normal expected illnesses?
Endemic
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
