Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question

Transcribed Image Text:Under anaerobic conditions, ______ is absent.
- A. lactate
- B. oxygen
- C. pyruvate
- D. carbon dioxide
- E. glucose
This question addresses the concept of anaerobic conditions, where the absence of a specific element or compound affects biological processes.
In typical anaerobic environments, oxygen (B) is absent. This affects cellular respiration, leading to the production of lactate or other byproducts instead of using oxygen for energy production. The other options (A, C, D, E) may still be present or involved in alternative metabolic processes.
Expert Solution

Step 1
Anaerobic and aerobic cell respiration are the two main forms of Cellular Respiration. One takes place in the presence of oxygen (aerobic), whereas the other takes place in the absence of oxygen (anaerobic). Glycolysis, the splitting of glucose, occurs first in both.
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