Chapter 5 The Working Cell - Weebly

Chapter 5

The Working Cell

PowerPoint Lectures for

Campbell Biology: Concepts & Connections, Seventh Edition

Reece, Taylor, Simon, and Dickey

? 2012 Pearson Education, Inc.

Lecture by Edward J. Zalisko

Introduction

? Some organisms use energy-converting reactions to

produce light in a process called bioluminescence.

¨C Many marine invertebrates and fishes use

bioluminescence to hide themselves from predators.

¨C Scientists estimate that 90% of deep-sea marine life

produces bioluminescence.

? The light is produced from chemical reactions that

convert chemical energy into visible light.

? 2012 Pearson Education, Inc.

Figure 5.0_1

Chapter 5: Big Ideas

Cellular respiration

Membrane Structure

and Function

How Enzymes Function

Energy and the Cell

Figure 5.0_2

Introduction

? Bioluminescence is an example of the multitude of

energy conversions that a cell can perform.

? Many of a cell¡¯s reactions

¨C take place in organelles and

¨C use enzymes embedded in the membranes of these

organelles.

? This chapter addresses how working cells use

membranes, energy, and enzymes.

? 2012 Pearson Education, Inc.

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