Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Question
Chapter 4, Problem 1AC
Summary Introduction
To review:
The density of mitochondria in the leg muscles of a sedentary individual and a marathon runner.
Introduction:
Mitochondria are present in all eukaryotic cells and are known as the ‘powerhouse of the cell’ because they derive energy from the food consumed and store them in the form of adenosine triphosphate (ATP) molecules. The mitochondria in muscles are capable of both aerobic and anaerobic respiration.
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If samples of muscle tissue were taken from the legs of a world-class marathon runner and a sedentary individual, which would you expect to have a higher density of mitochondria? Why?
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What part of the mitochondria is most acidic?
Chapter 4 Solutions
Biology: Life on Earth (11th Edition)
Ch. 4 - 1. Which of the following is/are found only in...Ch. 4 - Which of the following is not a function of the...Ch. 4 - Prob. 3MCCh. 4 - 4. Which of the following is not a location of...Ch. 4 - Which of the following statements is False?...Ch. 4 - The plasma membrane is composed of two major types...Ch. 4 - The three types of cytoskeleton fibers are...Ch. 4 - Prob. 3FTBCh. 4 - 4. Antibody proteins are synthesized on ribosomes...Ch. 4 - After each description, fill in the appropriate...
Ch. 4 - Two organelles that are believed to have evolved...Ch. 4 - 7. What structure in bacterial cells is composed...Ch. 4 - 1. What are the three principles of the cell...Ch. 4 - 2. Which cytoplasmic structures are common to both...Ch. 4 - Prob. 3RQCh. 4 - Describe the nucleus and the function of each of...Ch. 4 - What are the functions of mitochondria and...Ch. 4 - What is the function of ribosomes? Where in the...Ch. 4 - Describe the structure and function of the...Ch. 4 - 8. How are lysosomes formed? What is their...Ch. 4 - 9. Diagram the structure of eukaryotic cilia and...Ch. 4 - List the structures of bacterial cells that have...Ch. 4 - Prob. 1ACCh. 4 - Prob. 2ACCh. 4 - What problems would an enormous round cell...
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- In a mitochondrion, where are the electron transport systems and enzymes required for ATP formation located?arrow_forwardWhich is not a characteristic of mitochondria? They .. A) Have 2 membranes B) Are the site of cellular aerobic respiration C) Contain their own DNA and Ribosomes D) They have organelles that conduct their own protein synthesis E) The material inside their inner membrane ( cellular matrix) is their own cytoplasm? And explain whyarrow_forwardWhat might occur if the cells of the body contain malfunctioning mitochondria?arrow_forward
- Explain how in oxygenated tissue your cells use your mitochondria to produce energy.arrow_forwardWhy is the inner membrane of the mitochondria folded? increases volume increases surface area increases area increases diameterarrow_forwardcurved lines inside the mitochondria are known as what?arrow_forward
- what would happen during cellular respiration if all the mitochondria in a cell lost their outer membranes? be specific and explain how this would alter each part of cellular respiration.arrow_forwardDescribe the structure and primary function of mitochondria.arrow_forwardIs mitochondria acidic or basic?arrow_forward
- How many ATP are produced in the mitochondria?arrow_forwardWhich is NOT a characteristic of mitochondria? They: A) have two membranes. B) are the site of cellular aerobic respiration. C) have a true nucleus. D) contain their own DNA and ribosomes. E) the material inside their inner membrane (the cellular matrix) is their own cytoplasm.arrow_forwardThe micrographs of areolar and adipose tissue both show cells (fibroblasts and adipocytes), but the density of cells in the two tissues is very different. What do you think causes this difference?arrow_forward
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