BIO 121 Nutrition Module 2 Exam Questions With 100 Correct Answers GRADED
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Course
NU1426
Institution
NU1426
BIO 121 (Nutrition) Module 2 Exam Questions With 100% Correct Answers 2023/2024 (GRADED)
Ecosystem
1. Energy & Material Flows
2. Biogeochemical Cycles
3. Organisms
energy cannot be created or destroyed; but it may be converted
When energy changes form it is degraded to a less organized (and l...
BIO 121 (Nutrition) Module 2 Exam Questions
With 100% Correct Answers 2023/2024
(GRADED)
1). Ecosystem
Ans: a somewhat circumscribed area of interacting organisms and their environment
2). 1. energy & material flows
2. biogeochemical cycles
3. organisms
Ans: 3 main components of ecosystems
3). Energy cannot be created or destroyed; but it may be converted
Ans: 1st law of thermodynamics
4). When energy changes form it is degraded to a less organized (and less useful) form;
systems tend to move toward higher entropy levels
Ans: 2nd law of thermodynamics
5). Entropy
Ans: the measure of degree of disorganization
6). Higher
Ans: the more disorganized a system is, the ____ its entropy
7). Lower
Ans: the more organized a system is, the ____ its entropy
8). Energy inputs
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, Ans: what are required to maintain system organization (keep low entropy levels)?
9). Autotroph
Ans: uses energy of some sort to make their own food
10). Heterotroph
Ans: receives energy from other sources
11). Cellular respiration
Ans: a biochemical process which extracts energy from glucose
12). Opposites
Ans: how are the formulas of photosynthesis and cellular respiration related?
13). Fungi
Ans: heterotrophic organisms; usually 'eat' dead organic matter to break complex
molecules into simpler ones while extracting energy and building materials for their own
lives
14). Bacteria
Ans: prokaryotic organisms with no defined nucleus; main 'job' is as a decomposer
15). Chemosynthesis
Ans: using chemicals from deep see vents as a source of energy to make their own
food
16). Protista
Ans: a one-celled eukaryotes (have real nucleus); their 'job' is as important
photosynthesizer, making them an important source of food
17). Gross primary productivity
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