Select all that are true regarding soil a. the most abundant element of soil is inorganic mater b. plants passively acquire cations by using ATP to pump H+ into the soil c. soil plays key roles in water regulation and buffering of pollutants d. soil is an essential source of carbon for plants e. plants use H+ from photosynthesis to acquire cations f. anions are unbound in the soil and freely travel into plant roots with water g. cation exchange is required because cations are bound to negatively charged soil particles h. H+ works well for the cation exchange because it is a small molecule with a strong charge 2. Select all that apply to plant nutrition a. green manure can restore minerals to soil but is to expensive for farmers to use b. mineral deficiencies cause symptoms like chlorosis, a browning and death of plant tissue c. fertilizers typically contain nitrogen, potassium, and phosphorus, which are macronutrients d. phosphorus is essential because it regulates stomatal opening and closing e. nitrogen is critical for the formation of nucleic acids and amino acids f. plants have essential mineral nutrients that they must get from their environment in order to grow g. crop rotation helps avoid the build up of pests and improves soil structure h. manure, fish, and compost are examples of inorganic fertilizer i. inorganic fertilizer is made from unsustainable resources
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Select all that are true regarding soil
a. the most abundant element of soil is inorganic mater
b. plants passively acquire cations by using ATP to pump H+ into the soil
c. soil plays key roles in water regulation and buffering of pollutants
d. soil is an essential source of carbon for plants
e. plants use H+ from photosynthesis to acquire cations
f. anions are unbound in the soil and freely travel into plant roots with water
g. cation exchange is required because cations are bound to negatively charged soil particles
h. H+ works well for the cation exchange because it is a small molecule with a strong charge
2. Select all that apply to plant nutrition
a. green manure can restore minerals to soil but is to expensive for farmers to use
b. mineral deficiencies cause symptoms like chlorosis, a browning and death of plant tissue
c. fertilizers typically contain nitrogen, potassium, and phosphorus, which are macronutrients
d. phosphorus is essential because it regulates stomatal opening and closing
e. nitrogen is critical for the formation of
nucleic acids and amino acidsf. plants have essential mineral nutrients that they must get from their environment in order to grow
g. crop rotation helps avoid the build up of pests and improves soil structure
h. manure, fish, and compost are examples of inorganic fertilizer
i. inorganic fertilizer is made from unsustainable
resources 3. Select all statements that are true regarding crop production methods.
a. the environmental impact quotient (EIQ) is used to the costs (environmental, human, other animals, etc) of using a pesticide
b. GMO crops are not allowed in organic agriculture
c. the EIQ is only used for non organic pesticides
d. IPM works to improve farming by prevention of problems, observation throughout the season, and interventions specific to problems discovered.
e. Organically grown foods have been scientifically show to be more nutritious than non-organic foods
f. the ideals and ethics of organic agriculture don't always match the legalities and practice
g. the BT pesticide (not GMO crop) is acceptable in organic agriculture
h. farmers spray as many pesticides as possible
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