1. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology: Concepts and Connections, Fifth Edition – Campbell, Reece, Taylor, and Simon Lectures by Chris Romero Chapter 5 The Working Cell

2. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.0 Living cells put The firefly's use of light to signal mates results from Females of some species produce a light pattern that attracts which the female then

3. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings ENERGY AND THE CELL 5.1 Energy - the capacity to - can be converted from Kinetic energy - the energy of - ex. -

4. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Potential energy - stored - chemical energy stored - can be converted

5. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.2 Thermodynamics - - the study of The First Law of Thermodynamics -energy can be changed -but cannot be The Second Law of Thermodynamics – Energy transformations increase – and some energy is

6. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.4 ATP (_________________________________) - powers all forms of - composed of 1 adenine and 3 - the energy in an ATP molecule is in the bonds between - break the bond -

7. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings HOW ENZYMES FUNCTION 5.5 Enzymes - speed up the cell's - energy of amount of energy that must be input before

8. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.6 A specific enzyme catalyzes each Substrate - a specific reactant that

9. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.8 Enzyme inhibitors block Inhibitors interfere with

10. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings CONNECTION 5.9 Many poisons, pesticides, and drugs are ___________________: inhibits an enzyme involved with ATP production ___________________: inhibit an enzyme crucial for insect muscle function ___________________: inhibit enzymes essential for disease-causing bacteria ___________________: inhibit enzymes involved in inducing pain

11. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings MEMBRANE STRUCTURE AND FUNCTION 5.10 Membranes - organize the chemical - form most of the cell's - compartmentalize The plasma membrane -forms a boundary between a living cell and -- selective permeability = controls traffic of

12. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.11 Membrane - ________________________ are the main structural components - phospholipids form a

13. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.12 Proteins and other molecules are Membrane molecules function in

14. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.14 Passive transport - diffusion Diffusion = the tendency for particles to spread out - move from an area of _____ concentration to an area of _____ concentration

15. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.16 Osmosis - the diffusion of - water molecules diffuse across a selectively - from an area of low concentration to an area of - until the solution is equally concentrated on

16. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.18 Active transport - requires energy to move solutes against - ATP supplies - transport proteins move molecules

17. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings 5.19 To move large molecules or particles through Exocytosis: - expel contents Endocytosis: - enclosing material from the outside and

18. Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Endocytosis – Phagocytosis - – Pinocytosis -