Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 25, Problem 8TYK
Summary Introduction

Introduction:

Living organisms usually have an internal metabolic system that is responsible for the synthesis of an energy rich molecule (mainly ATP) for starting various biological processes. However, there are some reactions that require external forces for starting the process of internal reactions.

When protocells first developed, they had a membrane that permitted only some substances to pass through. They can pass on genetic information that they store in the form of plasmids and have a large amount of an aqueous solution called cytoplasm.

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What structure cannot be found in ALL cells? Explain why    A. Mitochondria   B. DNA    C. Cell membrane   D. Cytoplasm   F. Ribosomes
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The earliest cellular life forms appear to have been_____. A. Bacteria B. One-celled plants C. On-celled animals D. Viruses E. Mammals
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