CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 24.1, Problem 3CC
Summary Introduction

To describe:

The evidence of the formation of fossils in early prokaryotes and how they altered Earth’s atmosphere.

Concept introduction:

The evidence for the formation of fossils of early prokaryotes was found in Australia and South Africa. The fossils of the micro-organisms resembled in morphology with the Cyanobacteria containing the green pigment chlorophyll. The earth’s atmosphere was altered as these organisms consumed carbon dioxide and liberated oxygen in the atmosphere leading to the increase in the concentration of this gas.

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1) Name and give a brief account of the theory that explains the evolution of Eukaryotic cells from Prokaryotic cells.     2)     Explain the reactions that occur to form polysaccharides, using starch as an example.                                                                                                                                     3)     What do enzymes do?            What are their main structural features?             Give an example of a biological enzyme.      4)     Describe the structure of fats and lipids.             Why are some solid at room temperature whereas others, particularly from plants, are liquid?         Briefly describe the structure of an animal cell.              What are the main differences between animal and plant cells?           Briefly outline the steps involved in the synthesis of ATP in eukaryotic cells
Describe the features of mitochondria and chloroplasts that support the endosymbiotic theory.
Describe the evidence that supports the endosymbiotic theory of evolution of eukaryotes.
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