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Foundations in Microbiology 7Th chapter - Questions And Answers
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Foundations in Microbiology Chapter 7 complete
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7Student: ___________________________________________________________________________
1. Microorganisms require large quantities of this nutrient for use in cell structure and
metabolism:
A. element
B. macronutrient
C. water
D. growth factor
E. trace element
2. Microorganisms require small quantities of this nutrient for enzyme function and
maintenance of protein structure:
A. element
B. macronutrient
C. water
D. growth factor
E. trace element
3. An organic nutrient that cannot be synthesized by the organism and must be provided
is called a/an
A. element.
B. macronutrient.
C. water.
D. growth factor.
E. trace element.
4. An important mineral ion of the cytochrome pigments of cellular respiration is
A. iron.
B. zinc.
C. calcium.
D. magnesium.
E. potassium.
,5. An important mineral ion that is a component of chloroplasts and stabilizer of
membranes and ribosomes is
A. iron.
B. zinc.
C. calcium.
D. magnesium.
E. potassium.
6. The term phototroph refers to an organism that
A. uses CO2 for its carbon source.
B. must obtain organic compounds for its carbon needs.
C. gets energy from sunlight.
D. gets energy by oxidizing chemical compounds.
E. does not need a carbon source.
7. The term autotroph refers to an organism that
A. uses CO2 for its carbon source.
B. must obtain organic compounds for its carbon needs.
C. gets energy from sunlight.
D. gets energy by oxidizing chemical compounds.
E. does not need a carbon source.
8. The term heterotroph refers to an organism that
A. uses CO2 for its carbon source.
B. must obtain organic compounds for its carbon needs.
C. gets energy from sunlight.
D. gets energy by oxidizing chemical compounds.
E. does not need a carbon source.
9. The term chemotroph refers to an organism that
A. uses CO2 for its carbon source.
B. must obtain organic compounds for its carbon needs.
C. gets energy from sunlight.
D. gets energy by oxidizing chemical compounds.
E. does not need a carbon source.
, 10. The methanogens, producers of methane gas, require environments that
A. have sunlight.
B. are very acidic.
C. have abundant oxygen and CO2.
D. are extremely cold.
E. are anaerobic with hydrogen gas and CO2.
11. Organisms that feed on dead organisms for nutrients are called
A. saprobes.
B. parasites.
C. autotrophs.
D. lithoautotrophs.
E. phototrophs.
12. The type of photosynthesis that does not produce oxygen
A. occurs in cyanobacteria.
B. does not require CO2 as a reactant.
C. occurs in certain bacteria.
D. does not require sunlight.
E. occurs in algae and plants.
13. The movement of molecules from an area of high concentration to an area of lower
concentration is called
A. facilitated diffusion.
B. diffusion.
C. active transport.
D. osmosis.
E. endocytosis.
14. Diffusion of water through a semipermeable membrane is called
A. facilitated diffusion.
B. diffusion.
C. active transport.
D. osmosis.
E. endocytosis.
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