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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 19, Problem 9SQ
Textbook Problem
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Evolution of _______ increased the energy available to cells, making a larger genome and processes such as membrane trafficking possible.

  1. a. the nucleus
  2. b. endoplasmic reticulum
  3. c. chloroplasts
  4. d. mitochondria

Summary Introduction

Concept introduction: Mitochondria have evolved by the endosymbiotic theory when the bacteria were captured by the eukaryotic cell. The eukaryotic cell engulfed the aerobic prokaryote, and they form an endosymbiotic relationship with the host eukaryote that gradually develops into a mitochondrion. If the mitochondria is absent in the cell, the cells would not have enough energy to perform many of the functions, which are required to maintain homeostasis and stay alive.

Explanation of Solution

Reasons for correct statement:

Mitochondria have the ability to generate energy for cells by converting the oxygen and nutrients into adenosine triphosphate (ATP). A cell with mitochondria has the ability to express larger genome than the one that lacks these organelles. Due to the energy provided by mitochondria, some energy-intensive process like membrane trafficking is also possible.

Option d. is given as “mitochondria”. The evolution of the mitochondria increases the energy available to cells; hence, option d is correct.

Reasons for the incorrect statements:

Option a. is given as “the nucleus”...

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