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1. Classify the following organism based on their metabolic description. (aerobi

ID: 215636 • Letter: 1

Question

1. Classify the following organism based on their metabolic description. (aerobic vs anaerobic, auto vs hetero, chemo vs photo, litho vs organo) A bacteria is using the reductive TCA cycle and generates a proton gradient using a hydrogen sulfide oxidizing, oxygen reducing electron transport chain . . A diatom (algae) is using photosystems I and II and the Calvin cycle A sulfur-oxidizing, oxygen reducing bacteria that contains the enzyme isocitrate lyase but cannot do carbon fixation A pathogenic microbe that contains an NADH oxidizing, iron reducing electron transport chain and no carbon fixation pathways.

Explanation / Answer

1. Aerobic chemoautotroph

2. Aerobic photoautotroph

3. Chemoautotroph; lithotroph

4. Autotrophic; lithotroph