CZ:List of biology topics N-Z
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For A-M, see List of biology topics
N
- NAD: (NAD+/NADH) A coenzyme found in cells that is involved in redox reactions, carrying electrons from one reaction to another; NAD+ is an oxidizing agent, accepting electrons, and becomes reduced to NADH. [e] -
- NADH: Add brief definition or description -
NADPH: A major reducing agent in biological systems. [e] -- natural environment: A term that encompasses all living and non-living things occurring naturally on Earth or some region of Earth. [e] -
natural selection: The differential survival and/or reproduction of classes of entities that differ in one or more characteristics [e] -- Nephron: Add brief definition or description -
- nervous system: The control unit of bodily functions in animals. [e] -
- Neural plate: Add brief definition or description -
- Neural tube: Add brief definition or description -
- neuron: An excitable cell that is specialized to conduct nerve impulses. [e] -
- Neuroscience: The study of nervous systems and their components. [e] -
- Neurospora crassa: Add brief definition or description -
- neurotransmitter: A class of chemicals which relay, amplify or modulate electrical signals between a neuron and other cells in the nervous system. [e] -
- Neurula: Add brief definition or description -
- Neutral theory of molecular evolution: Add brief definition or description -
- Niche: Add brief definition or description -
nitrogen cycle: A complex process in which the element nitrogen moves into the air, back down into the soil, is changed chemically by various processes, and returns to the atmosphere once again. This cycle is necessary for life on earth. [e] -- Non-competitive inhibition: Add brief definition or description -
- Nondisjunction: Add brief definition or description -
- N-terminus: Add brief definition or description -
- Nuclear lamina: Add brief definition or description -
- Nucleolus: Add brief definition or description -
- Nucleon: Add brief definition or description -
- nucleoside: A purine or pyrimidine base attached to a ribose (used in RNA) or deoxyribose (used in DNA). [e] -
- Nucleosome: Add brief definition or description -
- nucleotide: A repeating unit in nucleic acid polymers consisting of a purine or pyrimidine base, a pentose sugar, and a phosphate group. [e] -
- Nutrition: The study of foods and nutrients and their effects on health, growth and development of any individual. [e]
O
- Okazaki fragment: Add brief definition or description -
- Olfaction: Add brief definition or description -
- Oncogene: Add brief definition or description -
- Operator: Please do not use this term in your topic list, because there is no single article for it. Please substitute a more precise term. See operator (disambiguation) for a list of available, more precise, topics. Please add a new usage if needed. -
- Operon: Add brief definition or description -
- Organ: Add brief definition or description -
- organelle: Specialized subunit within a cell that has a specific function, and is usually separately enclosed within its own lipid membrane, found in all eukaryotic cells. [e] -
- organism: An individual living individual: a complex, adaptive physical system that acts a integrated unit that sustains metabolism and reproduces progeny that resemble it. [e] -
- origin of life: How did self-replicating biochemistry and cells arise from the prebiotic world approximately four billion years ago? Aka abiogenesis. [e] -
- Oscar Hertwig: Add brief definition or description -
- Osmosis: Add brief definition or description -
- Osmoregulation: Add brief definition or description -
- Oswald Avery: Add brief definition or description -
- Outbreak: Add brief definition or description -
- Ovalbumin: Add brief definition or description -
- Ovary: Add brief definition or description -
- Ovum: Add brief definition or description -
- oxidation: Add brief definition or description -
- Oxidative decarboxylation: Add brief definition or description -
- Oxidative phosphorylation: Add brief definition or description
P
- Pangaea: Add brief definition or description -
- Paleontology: Add brief definition or description -
- Parallel evolution: Add brief definition or description -
- Paraphyletic: Add brief definition or description -
- Parasitism: Add brief definition or description -
- Parasitology: Add brief definition or description -
- Parthenogenesis: Add brief definition or description -
- Passive transport: Add brief definition or description -
- Patau syndrome: Add brief definition or description -
- Paternity test: Add brief definition or description -
- PCR: Add brief definition or description -
- Pentose phosphate pathway: Add brief definition or description -
- peptide: Add brief definition or description -
- Peptide bond: Add brief definition or description -
- Peripheral protein: Add brief definition or description -
- Peroxisome: Add brief definition or description -
- Phage: Add brief definition or description -
- phagocytosis: Add brief definition or description -
- phenotype: Add brief definition or description -
- Phloem: Add brief definition or description -
- Phospholipid: Add brief definition or description -
- Phospholipid bilayer: Add brief definition or description -
- Phosphorylation: Add brief definition or description -
- photobiology: Add brief definition or description -
- Photolysis: Add brief definition or description -
- photon: Add brief definition or description -
- Photophosphorylation: Add brief definition or description -
- Photorespiration: Add brief definition or description -
- photosynthesis: Add brief definition or description -
- photosynthesis: Add brief definition or description -
- Photosystem I: Add brief definition or description -
- Photosystem II: Add brief definition or description -
- Phycobilin: Add brief definition or description -
- Phycocyanin: Add brief definition or description -
- phycology: Add brief definition or description -
- Phylogenetics: Add brief definition or description -
- Phylogeny: Add brief definition or description -
- Phylogenetic tree: Add brief definition or description -
- physiology: Add brief definition or description -
- Pigment: Add brief definition or description -
- Placenta: Add brief definition or description -
- Plankton: Add brief definition or description -
- Plant: Add brief definition or description -
- Plantae: Add brief definition or description -
- Plant physiology: Add brief definition or description -
- Plant sexuality: Add brief definition or description -
- Plasma membrane: Add brief definition or description -
- Plasmid: Add brief definition or description -
- Plasmolysis: Add brief definition or description -
- Plastid: Add brief definition or description -
- plate tectonics: Add brief definition or description -
- Point mutation: Add brief definition or description -
- pollenizer: Add brief definition or description -
- pollination: Add brief definition or description -
- pollinator: Add brief definition or description -
- polypeptide: Add brief definition or description -
- Polyphenols: Add brief definition or description -
- Polyploidy: Add brief definition or description -
- Polysaccharide: Add brief definition or description -
- population: Add brief definition or description -
- Population dynamics: Add brief definition or description -
- population ecology: Add brief definition or description -
- population genetics: Add brief definition or description -
- Potential energy: Add brief definition or description -
- Predation: Add brief definition or description -
- pregnancy: Add brief definition or description -
- Primary nutritional groups: Add brief definition or description -
- Primary structure: Add brief definition or description -
- Primer: Add brief definition or description -
- prion: Add brief definition or description -
- prokaryote: Add brief definition or description -
- Prometaphase: Add brief definition or description -
- Promoter: Add brief definition or description -
- Prophage: Add brief definition or description -
- Prophase: Add brief definition or description -
- Proprioception: Add brief definition or description -
- Proteasome: Add brief definition or description -
- Protein biosynthesis: Add brief definition or description -
- protein: Add brief definition or description -
- Protein translocation: Add brief definition or description -
- Proteolysis: Add brief definition or description -
- Proteome: Add brief definition or description -
- Proteomics: Add brief definition or description -
- protist: Add brief definition or description -
- Protista: Add brief definition or description -
- Proton-motive force: Add brief definition or description -
- Proton pump: Add brief definition or description -
- Protozoa: Add brief definition or description -
- Pseudopod: Add brief definition or description -
- Pteridophyte: Add brief definition or description -
- Punnett square: Add brief definition or description -
- Purine: Add brief definition or description -
- Punctuated equilibrium: Add brief definition or description -
- Pyrimidine: Add brief definition or description -
- Pyruvate oxidation: Add brief definition or description
Q
R
- R-selection: Add brief definition or description -
- Radiobiology: Add brief definition or description -
- Receptor: Add brief definition or description -
- Recombination: Add brief definition or description -
- Red Queen: Add brief definition or description -
- Redox reaction: Add brief definition or description -
- Redox system: Add brief definition or description -
- Reduction: Add brief definition or description -
- Reflex: Add brief definition or description -
- Repeats: Add brief definition or description -
- Replication: Add brief definition or description -
- Repressor: Add brief definition or description -
- Reproduction: Add brief definition or description -
- Reproductive system: Add brief definition or description -
- Respiration: Add brief definition or description -
- restriction enzyme: Add brief definition or description -
- Retrovirus: Add brief definition or description -
- Reverse genetics: Add brief definition or description -
- RFLP: Add brief definition or description -
- Rhesus factor: Add brief definition or description -
- Ribosome: Add brief definition or description -
- RNA: Add brief definition or description -
- RNA virus: Add brief definition or description -
- RNA world: Add brief definition or description -
- Robert Koch: Add brief definition or description -
- Root: Add brief definition or description -
- Rough ER: Add brief definition or description -
- RuBP: Add brief definition or description -
- Rudolf Steiner: Add brief definition or description
S
- Saprobe: Add brief definition or description -
- Sarcoplasmic reticulum: Add brief definition or description -
- Scientific classification: Add brief definition or description -
- Secondary metabolite: Add brief definition or description -
- Secondary structure: Add brief definition or description -
- Second messenger: Add brief definition or description -
- Seed: Add brief definition or description -
- Seed plant: Add brief definition or description -
- Selection: Add brief definition or description -
- Sequencing: Add brief definition or description -
- Serum: Add brief definition or description -
- Semen: Add brief definition or description -
- Sewall Wright: Add brief definition or description -
- Sexual reproduction: Add brief definition or description -
- Sexual selection: Add brief definition or description -
- Shigella: Add brief definition or description -
- Shoot: Add brief definition or description -
- signal transduction: Add brief definition or description -
- Silk: Add brief definition or description -
- Sir Charles Lyell: Add brief definition or description -
- Sister chromatid: Add brief definition or description -
- Skeleton: Add brief definition or description -
- Skin cell: Add brief definition or description -
- Smooth ER: Add brief definition or description -
- Sociobiology: Add brief definition or description -
- Speciation: Add brief definition or description -
- Species: Add brief definition or description -
- Hans Spemann: Add brief definition or description -
- Sperm: Add brief definition or description -
- Spermatid: Add brief definition or description -
- Spermatogenesis: Add brief definition or description -
- Spermiogenesis: Add brief definition or description -
- Spliceosome: Add brief definition or description -
- Splicing: Add brief definition or description -
- Spore: Add brief definition or description -
- Sporophyte: Add brief definition or description -
- SSRI: Add brief definition or description -
- Starch: Add brief definition or description -
- Statistical learning: Add brief definition or description -
- Stem: Add brief definition or description -
- stem cell: Add brief definition or description -
- Sticky end: Add brief definition or description -
- Stoma: Add brief definition or description -
- Stomach: Add brief definition or description -
- streptomycin: Add brief definition or description -
- Stroma: Add brief definition or description -
- Structural biology: Add brief definition or description -
- Structural gene: Add brief definition or description -
- Substrate: Add brief definition or description -
- Substrate-level phosphorylation: Add brief definition or description -
- symbiosis: Add brief definition or description -
- Symbiogenesis: Add brief definition or description -
- Synapomorphy: Add brief definition or description -
- synapse: Add brief definition or description -
- Syngamy: Add brief definition or description -
- systematics: Add brief definition or description -
- systems biology: Add brief definition or description
T
- T cell: Add brief definition or description -
- taphonomy: Add brief definition or description -
- Taxis: Add brief definition or description -
- taxon: Add brief definition or description -
- taxonomy: Add brief definition or description -
- Telomere: Add brief definition or description -
- Telophase: Add brief definition or description -
- Tertiary structure: Add brief definition or description -
- Testes: Add brief definition or description -
- Theodor Bilharz: Add brief definition or description -
- Theodor Boveri: Add brief definition or description -
- thermocline: Add brief definition or description -
- Thermoregulation: Add brief definition or description -
- Thomas Hunt Morgan: Add brief definition or description -
- Thomas Malthus: Add brief definition or description -
- Thylakoid: Add brief definition or description -
- TMV: Add brief definition or description -
- Tobacco mosaic virus: Add brief definition or description -
- Torpor: Add brief definition or description -
- Trait (biological): Add brief definition or description -
- Transcription: Add brief definition or description -
- Transcription factor: Add brief definition or description -
- Transcriptional regulation: Add brief definition or description -
- Trans face: Add brief definition or description -
- Transformation: Add brief definition or description -
- Translation: Add brief definition or description -
- Transmembrane proteins: Add brief definition or description -
- Transmembrane receptor: Add brief definition or description -
- Transpiration: Add brief definition or description -
- Transport protein: Add brief definition or description -
- Transport vesicle: Add brief definition or description -
- transposon: Add brief definition or description -
- Trophic level: Add brief definition or description -
- Tropism: Add brief definition or description -
- Tubulin: Add brief definition or description -
- Tumor: Add brief definition or description -
- Turgor: Add brief definition or description -
- Turner syndrome: Add brief definition or description -
- Twin: Add brief definition or description
U
- urea cycle: Add brief definition or description -
- Unsolved problems in biology: Add brief definition or description
V
- vaccine: Add brief definition or description -
- Vacuole: Add brief definition or description -
- Varicella-zoster virus: Add brief definition or description -
- Vascular cambium: Add brief definition or description -
- Vascular tissue: Add brief definition or description -
- Vein: Add brief definition or description -
- Vertebrate: Add brief definition or description -
- Vesicle: Add brief definition or description -
- Vesicular stomatitis virus: Add brief definition or description -
- Vestibular system: Add brief definition or description -
- Vicariance: Add brief definition or description -
- virology: Add brief definition or description -
- Viral classification: Add brief definition or description -
- Virus: Add brief definition or description -
- Virus evolution: Add brief definition or description -
- visible light: Add brief definition or description -
- Vision: Add brief definition or description -
- vitamin: Add brief definition or description -
- vocal learning: Add brief definition or description
W
- Water cycle: Add brief definition or description -
- wavelength: Add brief definition or description -
- Wobble base pair: Add brief definition or description --
- wood: Add brief definition or description
X
- Xanthophyll: Add brief definition or description -
- X chromosome: Add brief definition or description -
- Xenobiology: Add brief definition or description -
- X-ray diffraction: Add brief definition or description -
- Xylem: Add brief definition or description
Y
- Y chromosome: Add brief definition or description -
- Yellow fever: Add brief definition or description