Biology, Pages 82-91Neil Campbell and Jane Reece's BIOLOGY remains unsurpassed as the most successful majors biology textbook in the world. This text has invited more than 4 million students into the study of this dynamic and essential discipline.The authors have restructured each chapter around a conceptual framework of five or six big ideas. An Overview draws students in and sets the stage for the rest of the chapter, each numbered Concept Head announces the beginning of a new concept, and Concept Check questions at the end of each chapter encourage students to assess their mastery of a given concept. & New Inquiry Figures focus students on the experimental process, and new Research Method Figures illustrate important techniques in biology. Each chapter ends with a Scientific Inquiry Question that asks students to apply scientific investigation skills to the content of the chapter. |
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Page 54
... H + con- centration directly by accepting hydrogen ions . Ammonia ( NH3 ) , for instance , acts as a base when the unshared electron pair in nitrogen's valence shell attracts a hydrogen ion from the solution , resulting in an ammonium ion ...
... H + con- centration directly by accepting hydrogen ions . Ammonia ( NH3 ) , for instance , acts as a base when the unshared electron pair in nitrogen's valence shell attracts a hydrogen ion from the solution , resulting in an ammonium ion ...
Page 55
... hydrogen and hydroxide ions . + The presence of buffers in biological fluids allows for a relatively constant pH despite the addition of acids or bases . Buffers are substances that minimize changes in the concen- trations of H and OH ...
... hydrogen and hydroxide ions . + The presence of buffers in biological fluids allows for a relatively constant pH despite the addition of acids or bases . Buffers are substances that minimize changes in the concen- trations of H and OH ...
Page 136
... hydrogen ions . The voltage and H + concentration gradient represent a dual energy source that can drive other processes , such as the uptake of nutrients . translocate Na + and K + one for one , but actually pumps three sodium ions out ...
... hydrogen ions . The voltage and H + concentration gradient represent a dual energy source that can drive other processes , such as the uptake of nutrients . translocate Na + and K + one for one , but actually pumps three sodium ions out ...
Contents
Featured Figures | 4 |
The Culture of Science | 25 |
The Chemical Context of Life | 32 |
Copyright | |
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active algae allele amino acid animals atoms bacteria binding biology bonds called Calvin cycle cancer carbon cell division cell's cellular cellular respiration Chapter chemical chloroplasts chromatids chromosome clade cloning codon color complex Concept Check cytoplasm diploid disease diversity electron embryo energy environment enzyme eukaryotic eukaryotic cells evolution evolutionary evolved example Figure flowers fossil function fungi gametes gametophytes genes genetic genome genotype glucose glycolysis haploid human hydrogen inherited ions meiosis metabolic microtubules mitochondria mitosis molecular mRNA multicellular mutations natural selection nucleotides nucleus occur offspring organelles organisms oxygen pathways phage phenotype phosphorylation photosynthesis plasma membrane plasmid polymerase polypeptide population produce prokaryotes protein protists reaction receptor recombination replication reproductive researchers respiration result ribosomes scientists seed sequence sexual signal species sperm spores sporophyte strand structure sugar suggested answers synthesis tion tissue traits transcription transport University vascular plants viral viruses zygote