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Ch. 5 - Microbial Metabolism
Bauman - Microbiology with Diseases by Taxonomy 6th Edition
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoBauman 6th EditionCh. 5 - Microbial MetabolismProblema 10
Capitolo 5, Problema 10

Why do cyanobacteria and algae take in carbon dioxide and give off oxygen?

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Understand that cyanobacteria and algae are photosynthetic organisms, meaning they use light energy to convert carbon dioxide and water into organic compounds.
Recognize that during photosynthesis, these organisms take in carbon dioxide (CO\_2) from their environment as a carbon source to build sugars and other organic molecules.
Know that the process of photosynthesis involves the splitting of water molecules (H\_2O) to release oxygen (O\_2) as a byproduct.
Recall the general photosynthesis equation: \(6CO\_2 + 6H\_2O + light \ energy \rightarrow C\_6H\_{12}O\_6 + 6O\_2\), which shows carbon dioxide intake and oxygen release.
Conclude that cyanobacteria and algae take in carbon dioxide to produce energy-rich organic compounds and release oxygen as a result of water splitting during photosynthesis.

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Photosynthesis

Photosynthesis is the process by which organisms like cyanobacteria and algae convert carbon dioxide and water into glucose and oxygen using sunlight. This process involves chlorophyll capturing light energy to drive chemical reactions that produce oxygen as a byproduct.
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Pigments of Photosynthesis

Role of Chlorophyll and Pigments

Chlorophyll and other pigments in cyanobacteria and algae absorb light energy necessary for photosynthesis. These pigments enable the organisms to harness sunlight efficiently, facilitating the conversion of CO2 into organic compounds and releasing oxygen.
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Pigments of Photosynthesis

Carbon Dioxide Fixation

Carbon dioxide fixation refers to the incorporation of CO2 into organic molecules during the Calvin cycle in photosynthesis. Cyanobacteria and algae use this process to build sugars that serve as energy sources, which explains their uptake of CO2 from the environment.
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Carbon
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Activation energy ______.

a. Is the amount of energy required during an activity such as flagellar motion

b. Requires the addition of nutrients in the presence of water

c. Is lowered by the action of organic catalysts

d. Results from the movement of molecules

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What happens to the carbon atoms in sugar catabolized by Escherichia coli?

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Why do we breathe oxygen and give off carbon dioxide?

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Coenzymes are _______.

a. Types of apoenzymes

b. Proteins

c. Inorganic cofactors

d. Organic cofactors

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Microbes that reduce N2 to NH3 engage in nitrogen ___________ .

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The use of a proton motive force to generate ATP is __________.

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