EP INQUIRY INTO LIFE-CONNECT ACCESS
EP INQUIRY INTO LIFE-CONNECT ACCESS
16th Edition
ISBN: 9781260482546
Author: Mader
Publisher: MCG COURSE
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Chapter 28, Problem 4A
Summary Introduction

To determine:

The steps that probably occurred first in the chemical and biological evolution of life.

Introduction:

Evolution is the process of change in all the forms of life among generations. The origin of cells is considered to be the first stage of life on Earth. The cell is the basic structural and functional unit of any living organism. It is the smallest unit of life which consists of cytoplasm enclosed within a membrane. This cytoplasm contains many biomolecules like proteins and nucleic acids. The cells are assumed to evolve in four phases:

Step 1. Organic Monomers: Monomers arise from the reaction in atmosphere.

Step 2. Organic Polymers: In this stage, the organic molecules are self-assembled to form a larger aggregate which is named Polymers.

Step 3. Protocells: A protocell has a lipid protein membrane which carries on energy metabolism. The molecules are packaged into protocells, which are like droplets enclosed with membrane that separate these polymers from the surroundings.

Step 4. Living cells: Protocell’s self-replication paid the way for inheritance possible by the process of passing on the genetic information. The first true cell was considered to contain RNA genes, which supports replication due to the presence of proteins.

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Chapter 28 Solutions

EP INQUIRY INTO LIFE-CONNECT ACCESS

Ch. 28.2 - Explain the role of biomolecules in chemical and...Ch. 28.2 - List the four stages of the evolution of life, and...Ch. 28.2 - Compare and contrast the “primordial soup” and the...Ch. 28.2 - Prob. 4CYPCh. 28.3 - List some of the major criteria that are used to...Ch. 28.3 - Prob. 2LOCh. 28.3 - Distinguish between halophiles, thermoacidophiles...Ch. 28.3 - Prob. 1CYPCh. 28.3 - Prob. 2CYPCh. 28.3 - 3. Describe adaptations that allow archaea to...Ch. 28.3 - Prob. 4CYPCh. 28.4 - Identify the major structural features of...Ch. 28.4 - Prob. 2LOCh. 28.4 - Explain why bacteria are considered to be...Ch. 28.4 - List several major bacterial diseases of humans...Ch. 28.4 - Prob. 1QTCCh. 28.4 - Prob. 2QTCCh. 28.4 - Prob. 3QTCCh. 28.4 - 1. Describe the three basic shapes of bacteria. Ch. 28.4 - Explain how bacterial conjugation differs from...Ch. 28.4 - Prob. 3CYPCh. 28.4 - Prob. 4CYPCh. 28.5 - Prob. 1LOCh. 28.5 - Describe the steps in a typical viral reproductive...Ch. 28.5 - Prob. 3LOCh. 28.5 - Prob. 4LOCh. 28.5 - Prob. 1CYPCh. 28.5 - Prob. 2CYPCh. 28.5 - List three viral diseases for which a vaccine is...Ch. 28.5 - Prob. 4CYPCh. 28 - Prob. S1.2BYBCh. 28 - Sections 3.2 What are some basic structural...Ch. 28 - Prob. T27.1BYBCh. 28 - Decomposers Break down dead organic matter in the...Ch. 28 - Prob. 2ACh. 28 - Prob. 3ACh. 28 - Prob. 4ACh. 28 - Prob. 5ACh. 28 - While studying an ancient lake you discover that...Ch. 28 - Prob. 7ACh. 28 - Prob. 8ACh. 28 - Prob. 9ACh. 28 - Prob. 10ACh. 28 - Prob. 11ACh. 28 - 12. The Envelope of an animal virus is usually...Ch. 28 - Prob. 13ACh. 28 - Prob. 1TCCh. 28 - Prob. 2TCCh. 28 - Explain a method by which an antiviral drug could...Ch. 28 - Prob. 4TC
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