I. Living Cells (1) 1 



A note on the compound microscope 3 



II. Living Cells (2); Cell Models 7 



III. Chemical Components of Cells: Macromolecules of 

 Yeast and Their Subunits (1) 12 



IV. Chemical Components of Cells: Macromolecules of 

 Yeast and Their Subunits (2) 21 



V. Enzymes 25 



VI. Studies in Microbiology (1). Bacterial Growth; A Bac- 

 terial Enzyme; Comparative Biochemistry .... 33 

 VII. Studies in Microbiology (2). Bacterial Mutation; Resist- 

 ance to Antibiotics; Radiation Effects; Action of Lyso- 

 zyme; Bacterial Anatomy 38 



VIII. Studies in Microbiology (3). Genetic Transformation 



of Bacteria 43 



IX. Studies in Microbiology (4). Viruses: Their Identifica- 

 tion, Mode of Reproduction, and Filterability ... 47 



X. Photosynthesis 50 



XI. Fermentation and Respiration 54 



XII. and XIII. The Array of Living Organisms .... 57 



A short guide to plant and animal classification . . 65 



XIV. Vertebrate Anatomy 69 



XV. Organization of Higher Plants; The Transport of Sap . 74 



XVI. Blood and Circulation 80 



XVII. Permeability and Active Transport: The Hamster Gut . 86 



XVIII. The Nerve Impulse 91 



XIX. Muscle 99 



XX. Electrical Activity of a Sense Organ: The Limulus Eye . 1 04 

 XXI. Plant Grov/th and Tropisms; Carbon Dioxide Fixation 



and Translocation of Plant Substances 1 09 



XXII. Introduction to the Genetics of Man and the Fruit Fly; 



Regeneration of Planaria 114 



XXIII. Fertilization and Early Development; Continuation of 



the Genetics Experiment 1 20 



XXIV. Development of the Chick; Continuation of the Genetics 

 Experiment 123 



XXV. Completion of the Genetics Experiment .... 1 26 



XXVI. Sensory Receptors 1 29 



Appendix A. Outline for the Instructor on the Preparation for 



Microbiological Experiments (Exercises VHX) . 135 



Appendix B. Notes to the Instructor on the Electronic Equip- 

 ment Used in Exercise XVIII 141 



Appendix C. Supplementary Experiments on Chemical Com- 

 ponents of Cells: The Biochemistry of Milk . . 143 



Appendix D. Exponents and Logarithms 1 49 



Appendix E. The Periodic System of the Elements . . . 151 



Appendix F. Table of Atomic Weights 152 



BIBLIOGRAPHY 154 



xiii 



CONTENTS 



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