Human Physiology, 14th edition (2016)

78 Chapter 3 to divide indefinitely. Telomerase consists of an RNA portion containing nucleotide bases complementary to the telo ...

Cell Structure and Genetic Control 79 Homologous chromosomes do not have identical DNA base sequences; one member of the pair ma ...

80 Chapter 3 Figure 3.30 Meiosis, or reduction division. In the first meiotic division, the homologous chromosomes of a diploid ...

Cell Structure and Genetic Control 81 Table 3.3 | Stages of Meiosis Stage Events First Meiotic Division Prophase I Chromosomes a ...

82 Chapter 3 George has a grandparent on each side who suffered similar symptoms, which indicates that he should be tested for G ...

83 Interactions Nervous System Regeneration of neurons is regulated by several different chemicals (p. 170) Different forms (al ...

84 Chapter 3 Summary 2. In chromatin, DNA is wound around regulatory proteins known as histones to form particles called nucleos ...

Cell Structure and Genetic Control 85 1. Mitosis consists of the following phases: interphase, prophase, metaphase, anaphase, an ...

86 Chapter 3 The organelle that contains digestive enzymes is a. the mitochondrion. b. the lysosome. c. the endoplasmic reticu ...

Cell Structure and Genetic Control 87 ONLINE STUDY TOOLS ...

88 Refresh Your Memory Before you begin this chapter, you may want to review these concepts from previous chapters: ■ Proteins 4 ...

Enzymes and Energy 89 The ability of yeast cells to make alcohol from glucose (a pro- cess called fermentation ) had been known ...

90 Chapter 4 Figure 4.1 A comparison of noncatalyzed and catalyzed reactions. The upper figures compare the proportion of reacta ...

Enzymes and Energy 91 Naming of Enzymes In the past, enzymes were given names that were somewhat arbitrary. The modern system fo ...

92 Chapter 4 The activity of an enzyme, as measured by the rate at which its substrates are converted to products, is influenced ...

Enzymes and Energy 93 Figure 4.4 The effect of pH on the activity of three digestive enzymes. Salivary amylase is found in saliv ...

94 Chapter 4 increases. Eventually, however, a point will be reached where additional increases in substrate concentration do no ...

Enzymes and Energy 95 Figure 4.7 The general pattern of a metabolic pathway. In metabolic pathways, the product of one enzyme be ...

96 Chapter 4 pathway, the intermediates and final products of the alternate pathway will increase ( fig. 4.10 ). An abnormal inc ...

Enzymes and Energy 97 Energy may be defined as the ability to do work (exert a force that acts over a distance). Bioenergetics r ...