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scsc 301 exam 2 tamu smith Questions and
Correct Answers the Latest Update and
Recommended Version
an organism that can use CO2or CO3- (i.e., inorganic C) as a C source, and obtain energy
from the sun (photo) - or from the oxidation of inorganic elements or compounds such as iron,
sulfur, hydrogen, ammonium, and nitrites (chemo)?
✓ Autotroph such as plants, algae, cyanobacteria, etc.
an organism that can only get carbon and energy from organic compounds?
✓ Heterotroph such as bacteria, fungi, protozoa, etc.
an organism that grows only in the presence of molecular oxygen?
✓ aerobe such as nitrifying bacteria
an organism that only grows in the absence of molecular oxygen?
✓ Anaerobe such as archaea, denitrifying bacteria, some N-fixing bacteria
an organism capable of both aerobic and anaerobic metabolism?
✓ facultative anaerobe
What functions do microorganisms provide in soil?
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✓ -soil organic matter stabilization, organic matter mixing, and aggregate formation
✓ -breakdown of toxic compounds
✓ -inorganic transformations: nutrient cycling
✓ -nitrogen fixation
✓ -plant protection
plant roots
✓ release C into soil via exudates, aid in aggregate formation, use O2 for respiration
(produce CO2)
Earthworms
✓ eat detritus (waste), organic matter and microorganisms, form burrows, "nature's tiller"
create casts- aggregation
termites
✓ complex social colonies, mound builders, symbiotic gut microbes degrade cellulose, fungi
farmers
nematodes
✓ -microbial predator- controls populations and releases plant-available N
✓ -moist, well-aggregated soils
✓ -moved by pushing or "swimming"
Tardigrades
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
scsc 301 exam 2 tamu smith Questions and
Correct Answers the Latest Update and
Recommended Version
an organism that can use CO2or CO3- (i.e., inorganic C) as a C source, and obtain energy
from the sun (photo) - or from the oxidation of inorganic elements or compounds such as iron,
sulfur, hydrogen, ammonium, and nitrites (chemo)?
✓ Autotroph such as plants, algae, cyanobacteria, etc.
an organism that can only get carbon and energy from organic compounds?
✓ Heterotroph such as bacteria, fungi, protozoa, etc.
an organism that grows only in the presence of molecular oxygen?
✓ aerobe such as nitrifying bacteria
an organism that only grows in the absence of molecular oxygen?
✓ Anaerobe such as archaea, denitrifying bacteria, some N-fixing bacteria
an organism capable of both aerobic and anaerobic metabolism?
✓ facultative anaerobe
What functions do microorganisms provide in soil?
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
✓ -soil organic matter stabilization, organic matter mixing, and aggregate formation
✓ -breakdown of toxic compounds
✓ -inorganic transformations: nutrient cycling
✓ -nitrogen fixation
✓ -plant protection
plant roots
✓ release C into soil via exudates, aid in aggregate formation, use O2 for respiration
(produce CO2)
Earthworms
✓ eat detritus (waste), organic matter and microorganisms, form burrows, "nature's tiller"
create casts- aggregation
termites
✓ complex social colonies, mound builders, symbiotic gut microbes degrade cellulose, fungi
farmers
nematodes
✓ -microbial predator- controls populations and releases plant-available N
✓ -moist, well-aggregated soils
✓ -moved by pushing or "swimming"
Tardigrades
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
