Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 6.9, Problem 2MC
Why must the first
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Use the image below to answer the questions:
a) What general process does the picture illustrate?
b) Briefly outline three main steps involved in this process
c) indicate why an oxygen-free environment is important
Fossils of a microscopic organism are found in rocks determined to be from a past era of time.
Identify TWO types of evidence that would help answer the question of whether the organism was
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Is it likely that any metabolic pathway can exist without control mechanisms?
Chapter 6 Solutions
Biology: Concepts and Investigations
Ch. 6.1 - Why do all organisms need ATP?Ch. 6.1 - What are the three general ways to generate ATP...Ch. 6.1 - Prob. 3MCCh. 6.1 - Prob. 4MCCh. 6.2 - Prob. 1MCCh. 6.2 - What occurs in each of the three stages of...Ch. 6.3 - Prob. 1MCCh. 6.3 - Prob. 2MCCh. 6.4 - Prob. 1MCCh. 6.4 - Prob. 2MC
Ch. 6.4 - Prob. 3MCCh. 6.5 - Prob. 1MCCh. 6.5 - Prob. 2MCCh. 6.5 - Prob. 3MCCh. 6.5 - Prob. 4MCCh. 6.6 - Prob. 1MCCh. 6.6 - How does the actual ATP yield compare to the...Ch. 6.7 - Prob. 1MCCh. 6.7 - Prob. 2MCCh. 6.8 - Prob. 1MCCh. 6.8 - Prob. 2MCCh. 6.8 - Prob. 3MCCh. 6.9 - Prob. 1MCCh. 6.9 - Why must the first metabolic pathways have been...Ch. 6.9 - What is the evidence that photosynthesis may have...Ch. 6.10 - What hypothesis were the researchers testing, and...Ch. 6.10 - Prob. 2MCCh. 6 - Which of the following best describes aerobic...Ch. 6 - Which stage in cellular respiration produces the...Ch. 6 - What is the role of ATP synthase? a. It uses ATP...Ch. 6 - Prob. 4MCQCh. 6 - Prob. 5MCQCh. 6 - What is endosymbiosis? a. A type of fermentation...Ch. 6 - Respiration contains the Latin word root spiro,...Ch. 6 - All steps of cellular respiration are closely...Ch. 6 - How might a mitochondrion's double membrane make...Ch. 6 - Health-food stores sell a product called pyruvate...Ch. 6 - At what point does O2 enter the energy pathways of...Ch. 6 - Describe the energy pathways that are available...Ch. 6 - Prob. 7WIOCh. 6 - Describe how aerobic respiration occurs in...Ch. 6 - Prob. 9WIOCh. 6 - Explain the fact that species as diverse as humans...Ch. 6 - Prob. 11WIOCh. 6 - Prob. 1PITCh. 6 - Prob. 2PITCh. 6 - Prob. 3PITCh. 6 - Where would fermentation, anaerobic respiration,...
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- What is the purpose of cellular respirationarrow_forwardWhat role did symbiosis play in the origin of mitochondria?arrow_forwardWhich statement is an accurate comparison of aerobic and anaerobic respiration in humans? A: Aerobic respiration occurs in the cytoplasm and mitochondria, whereas anaerobic respiration occurs only in the cytoplasm B: Aerobic respiration primarily uses carbohydrates to produce energy, while anaerobic respiration uses lipids C: Aerobic respiration produced ATP as the primary energy molecules, while anaerobic respiration produces ADP D: Aerobic respiration requires enzymes to facilitate its biochemical reactions, whereas anaerobic respiration does not use enzymesarrow_forward
- What is the major role of hydrogen ions in cellular respiration? A) To make water B To act as an electron acceptor To act as the energy source D) To power the actions of ATP synthasearrow_forwardChemiosmosis is a process that drives the creation of ATP. This process requires the use of specific enzymes which were unlikely to have existed on early Earth. A. What has this new study uncovered in relation to ATP on early Earth? B. How do scientists postulate that the phosphorus on early Earth was created? C. Explain why this study is important?arrow_forwardIf fermentation is a fast easy way to get ATP without oxygen and without requiring complex organelles, then why is there a slow more complex process involving oxygen?arrow_forward
- Why are spontaneous reactions important in the metabolism of a cellarrow_forwardIn the modern aerobic cell, the most important product of the proton pump is a) protons b) O2 c) ATP d) CO2 e) NADH f) glucosearrow_forwardCompare and contrast the processes of Aerobic respiration, Anaerobic respiration and Fermentation. (PARAGRAPH FORM)arrow_forward
- Is Metabolism Similar in Different Organisms?arrow_forwardWhat are Metabolic Pathways?arrow_forwardWhich term describes how a cell regulates a metabolic pathway when the product of the pathway inhibits the enzyme that controls its formation (as the product accumulates it binds to an enzyme in the pathway and prevents it from working)?arrow_forward
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