Cell Structure and Signaling by Chemical Messengers
10 Cell Structure and Signaling by Chemical Messengers The basic unit of a living organism is the cell. In humans, each tissue is composed of a variety of cell types,…
An Introduction to Human Genetics
18 An Introduction to Human Genetics Human genetics is defined as the study of heredity and the variation in inherited characteristics, as they apply to humans. As discussed in Chapter…
Actions of Hormones That Regulate Fuel Metabolism
41 Actions of Hormones That Regulate Fuel Metabolism Many hormones affect fuel metabolism, including those that regulate appetite as well as those that influence absorption, transport, and oxidation of foodstuffs….
Use of Recombinant DNA Techniques in Medicine
16 Use of Recombinant DNA Techniques in Medicine The rapid development of techniques in molecular biology is revolutionizing the practice of medicine. The potential uses of these techniques for the…
Structures of the Major Compounds of the Body
5 Structures of the Major Compounds of the Body Our body contains compounds of great structural diversity, ranging from relatively simple sugars and amino acids to enormously complex polymers such…
Synthesis and Degradation of Amino Acids
37 Synthesis and Degradation of Amino Acids Because each of the 20 common amino acids has a unique structure, their metabolic pathways differ. Despite this, some generalities do apply to…
Transcription: Synthesis of RNA
13 Transcription: Synthesis of RNA Synthesis of RNA from a DNA template is called transcription. Genes are transcribed by enzymes called RNA polymerases that generate a single-stranded RNA identical in…
Synthesis of DNA
12 Synthesis of DNA DNA synthesis occurs by the process of replication. During replication, each of the two parental strands of DNA serves as a template for the synthesis of…
Oxidation of Fatty Acids and Ketone Bodies
30 Oxidation of Fatty Acids and Ketone Bodies Fatty acids are a major fuel for humans and supply our energy needs between meals and during periods of increased demand, such…
The Molecular Biology of Cancer
17 The Molecular Biology of Cancer The term cancer applies to a group of diseases in which cells grow abnormally and form a malignant tumor. Malignant cells can invade nearby…
