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Page 528
... Bacteria have specific receptor molecules on their membranes that detect the presence of certain chemicals . But how do bacteria sense a concentration that varies over space ? They do not seem able to com- pare concentrations at ...
... Bacteria have specific receptor molecules on their membranes that detect the presence of certain chemicals . But how do bacteria sense a concentration that varies over space ? They do not seem able to com- pare concentrations at ...
Page 535
... Bacteria and Disease Bacteria are everywhere , and exposure to pathogenic ones is a certainty . Most of us are well most of the time because our defenses check the growth of harmful bacteria and other pathogens to which we are exposed ...
... Bacteria and Disease Bacteria are everywhere , and exposure to pathogenic ones is a certainty . Most of us are well most of the time because our defenses check the growth of harmful bacteria and other pathogens to which we are exposed ...
Page 539
... bacteria c . enteric bacteria d . pseudomonads e . actinomycetes 5. The first prokaryotes were probably a . cyanobacteria b . chemoheterotrophs that used abiotically - made organic compounds c . anaerobic photosynthetic organisms d ...
... bacteria c . enteric bacteria d . pseudomonads e . actinomycetes 5. The first prokaryotes were probably a . cyanobacteria b . chemoheterotrophs that used abiotically - made organic compounds c . anaerobic photosynthetic organisms d ...
Contents
Themes in the Study of Life | 1 |
UNIT ONE The Chemistry of Life | 15 |
Atoms Molecules and Chemical Bonds | 20 |
Copyright | |
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active adaptive algae allele amino acids animals asexual atoms bacteria biology called Calvin cycle carbon cell walls cellular Chapter chemical chlorophyll chloroplasts chromosome complex covalent cycle cytoplasm diploid disease diversity electron transport chain embryo energy environment enzymes eukaryotic eukaryotic cells evolution evolutionary evolved example fertilization Figure flowers fossil function fungi gametes gametophyte gene pool genetic genome genotype glucose glycolysis haploid human hydrogen bonds inherited ions living meiosis metabolic microscope microtubules minerals mitochondria mitosis molecular mRNA multicellular mutations natural selection nitrogen nucleotide nucleus nutrients occurs organelles organic molecules oxidized oxygen pair pathway phage phenotype phosphate photosynthesis phylum plant cells plasma membrane polypeptide population produce prokaryotes protein protists proton reaction recombinant replication reproduction respiration ribosomes root seed sequence sexual soil solution speciation species sperm strand structure sugar synthesis tion tissue traits vascular vertebrates viruses xylem zygote