BIOL3200 - MEHARI EXAM #2 QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
Major elements seen in macronutrients
C, H, N, O, P, S
Ions necessary for cellular function
K+, Ca2+, Na+, Fe2+
Micronutrients are needed in _________ amounts?
Small
What functions do micronutrients usually have?
Enzyme function.
Examples of micronutrients
Cu, Zn, Co, Mn, Mo, Ni
Heterotrophs:
utilizes preorganized organic molecules to create energy.
Autotrophs
Organisms that are able to make their own food. This is achieved by fixing CO2
molecules in some way shape or form.
Phototrophs
obtain energy from sunlight.
, Lithotrophs
Attain their energy for cellular function by oxidizing minerals which are INORGANIC.
Do all organisms create energy by means of processing organic compounds?
NO
Transport happens across the cell in two ways:
Active, and passive transport.
examples of passive transport:
Simple diffusion, osmosis, and facilitated diffusion.
Examples of active transport:
coupled transport and ABC transporters
Coupled transport systems move a ________ _________ down its gradient this
moves a ________ up the gradient to enter the __________ or exit.
Driving ion, solute, and membrane.
Symport vs Antiport
Symport is in the same direction and antiport is in the opposite direction.
symport
A membrane transport process that carries two substances in the same direction across
the membrane.
antiport
A membrane transport process that carries one substance in one direction and another
in the opposite direction.
Generation Time.
Time it takes for a population to double
ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
LATEST UPDATE
Major elements seen in macronutrients
C, H, N, O, P, S
Ions necessary for cellular function
K+, Ca2+, Na+, Fe2+
Micronutrients are needed in _________ amounts?
Small
What functions do micronutrients usually have?
Enzyme function.
Examples of micronutrients
Cu, Zn, Co, Mn, Mo, Ni
Heterotrophs:
utilizes preorganized organic molecules to create energy.
Autotrophs
Organisms that are able to make their own food. This is achieved by fixing CO2
molecules in some way shape or form.
Phototrophs
obtain energy from sunlight.
, Lithotrophs
Attain their energy for cellular function by oxidizing minerals which are INORGANIC.
Do all organisms create energy by means of processing organic compounds?
NO
Transport happens across the cell in two ways:
Active, and passive transport.
examples of passive transport:
Simple diffusion, osmosis, and facilitated diffusion.
Examples of active transport:
coupled transport and ABC transporters
Coupled transport systems move a ________ _________ down its gradient this
moves a ________ up the gradient to enter the __________ or exit.
Driving ion, solute, and membrane.
Symport vs Antiport
Symport is in the same direction and antiport is in the opposite direction.
symport
A membrane transport process that carries two substances in the same direction across
the membrane.
antiport
A membrane transport process that carries one substance in one direction and another
in the opposite direction.
Generation Time.
Time it takes for a population to double
