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BIOL 1202 Pomarico Exam 5 Questions and Answers with
Complete Solutions UPDATED!!!
nutrients - ANSWER the "materials" needed for life
nutrition in all organisms - ANSWER -acquisition of nutrients
-digestion, if required (breaking down to monomers in order to
distribute)
-distribution of the nutrients throughout the body
-synthesis of molecules for the organism's body
how plants get their nutrients - ANSWER starting material:
elements and small molecules
digestion: usually none
distribution: driven by osmosis and evaporation (high energy
approach)
synthesis of molecules: can do it all
how animals get their nutrients - ANSWER starting
material:large organic molecules
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digestion: required to break large molecules down to building
blocks
distribution: pumping mechanism for most (low energy
approach)
synthesis of molecules: must acquire some through diet
minerals acquired from soil by plants - ANSWER water
(hydrogen and oxygen) & air (CO2)
transport in vascular plants - ANSWER 1. transport of water and
solutes by individual cells
2. short-distance transport of substances from cell to cell at the
level of tissues and organs (diffusion & osmosis)
3. long-distance transport of substances within xylem and
phloem (bulk flow)
transmembrane route - ANSWER where transport of water (by
osmosis) and solutes (by diffusion or active transport) by
individual cells
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plasma membrane controls movement of solutes into and out
of the cell by - ANSWER -passive transport
-facilitated diffusion using transport proteins
-co-transprt
-active transport
water potential - ANSWER Ψ = Ψs + Ψp
water potential affected by - ANSWER solute potential (Ψs) and
pressure potential (Ψp)
solute potential (Ψs) - ANSWER determined by the
concentration of dissolved molecules
pressure potential (Ψp) - ANSWER determined by the physical
pressure on a solution
when the water potential inside the cell is lower than the water
potential outside the cell, - ANSWER water moves in (osmosis).
BIOL 1202 Pomarico Exam 5 Questions and Answers with
Complete Solutions UPDATED!!!
nutrients - ANSWER the "materials" needed for life
nutrition in all organisms - ANSWER -acquisition of nutrients
-digestion, if required (breaking down to monomers in order to
distribute)
-distribution of the nutrients throughout the body
-synthesis of molecules for the organism's body
how plants get their nutrients - ANSWER starting material:
elements and small molecules
digestion: usually none
distribution: driven by osmosis and evaporation (high energy
approach)
synthesis of molecules: can do it all
how animals get their nutrients - ANSWER starting
material:large organic molecules
, Page |2
digestion: required to break large molecules down to building
blocks
distribution: pumping mechanism for most (low energy
approach)
synthesis of molecules: must acquire some through diet
minerals acquired from soil by plants - ANSWER water
(hydrogen and oxygen) & air (CO2)
transport in vascular plants - ANSWER 1. transport of water and
solutes by individual cells
2. short-distance transport of substances from cell to cell at the
level of tissues and organs (diffusion & osmosis)
3. long-distance transport of substances within xylem and
phloem (bulk flow)
transmembrane route - ANSWER where transport of water (by
osmosis) and solutes (by diffusion or active transport) by
individual cells
, Page |3
plasma membrane controls movement of solutes into and out
of the cell by - ANSWER -passive transport
-facilitated diffusion using transport proteins
-co-transprt
-active transport
water potential - ANSWER Ψ = Ψs + Ψp
water potential affected by - ANSWER solute potential (Ψs) and
pressure potential (Ψp)
solute potential (Ψs) - ANSWER determined by the
concentration of dissolved molecules
pressure potential (Ψp) - ANSWER determined by the physical
pressure on a solution
when the water potential inside the cell is lower than the water
potential outside the cell, - ANSWER water moves in (osmosis).
