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When the first cells evolved, Earth's atmosphere was The first cells used the process called to make a small amount of ATP. O oxic; anaerobic respiration O anaerobic; oxygenic photosynthesis anaerobic; fermentation O aerobic; aerobic respirtaion

When the first cells evolved, Earth's atmosphere was The first cells used the process called to make a small amount of ATP. O oxic; anaerobic respiration O anaerobic; oxygenic photosynthesis anaerobic; fermentation O aerobic; aerobic respirtaion

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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**Question:** When the first cells evolved, Earth's atmosphere was ________. The first cells used the process called ______________ to make a small amount of ATP. **Options:** - oxic; anaerobic respiration - anaerobic; oxygenic photosynthesis - anaerobic; fermentation - aerobic; aerobic respiration In this multiple-choice question, a key evolutionary concept is explored regarding the atmosphere and energy production in early cellular life. Initially, Earth’s atmosphere lacked oxygen, making it anaerobic. The first cells likely relied on fermentation to produce ATP, as oxygen-dependent processes like aerobic respiration had not yet evolved.
Transcribed Image Text:**Question:** When the first cells evolved, Earth's atmosphere was ________. The first cells used the process called ______________ to make a small amount of ATP. **Options:** - oxic; anaerobic respiration - anaerobic; oxygenic photosynthesis - anaerobic; fermentation - aerobic; aerobic respiration In this multiple-choice question, a key evolutionary concept is explored regarding the atmosphere and energy production in early cellular life. Initially, Earth’s atmosphere lacked oxygen, making it anaerobic. The first cells likely relied on fermentation to produce ATP, as oxygen-dependent processes like aerobic respiration had not yet evolved.
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