Biology |
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Page 108
... pathways were open simultaneously . Imagine , for example , a substance synthesized by one pathway and broken down by another . If the two pathways were to run at the same time , the cell would be spinning its metabolic wheels ...
... pathways were open simultaneously . Imagine , for example , a substance synthesized by one pathway and broken down by another . If the two pathways were to run at the same time , the cell would be spinning its metabolic wheels ...
Page 200
... pathway that synthesizes that amino acid from an intermediate of the Krebs cycle is switched off . The most common mechanism for this control is feedback inhibition ; the end product of the anabolic pathway inhibits the enzyme that ...
... pathway that synthesizes that amino acid from an intermediate of the Krebs cycle is switched off . The most common mechanism for this control is feedback inhibition ; the end product of the anabolic pathway inhibits the enzyme that ...
Page 368
... pathway for tryptophan synthesis , the end product of the pathway ( tryptophan ) can inhibit the activity of the first enzyme in the pathway ( feedback inhibition ) and / or repress the expression of the genes for all the enzymes needed ...
... pathway for tryptophan synthesis , the end product of the pathway ( tryptophan ) can inhibit the activity of the first enzyme in the pathway ( feedback inhibition ) and / or repress the expression of the genes for all the enzymes needed ...
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