achlya acid acid growth acrosome actinobacteria aerobic organism algae alginic acid alternation of generations amino acid amoeba amyloplast anaerobic organism animal apoplast archaea autotroph bacteria bacterial cell structure bacterial disease bacterial outer membrane bark basal body biofilm botanical name botanical nomenclature botany brown algae bryophyte calcium calcium carbonate carbohydrate carbon dioxide carrageenan casparian strip cell capsule cell cycle cell envelope cell membrane cell nucleus cellulase cellulose centrosome chitin chlorophyll chloroplast chromoplast cilium coccobacillus coccus cork cork cambium cutin cytokinesis cytoplasm cytoskeleton dasycladales desulfurococcus diaminopimelic acid diatom dictyostelid digital object identifier diplococcus ecology endodermis endomembrane system endoplasmic reticulum endosome endosymbiont ethnobotany evolutionary history of plants exotoxin expansin facultative anaerobic organism fern firmicutes flagellum flower flowering plant fruit fungus gametophyte glucan glucosamine glucose glycocalyx glycoprotein glycosylation glyoxysome golgi apparatus gram-negative bacteria gram-positive bacteria green algae gut flora gymnosperm haemophilus influenzae halobacterium halococcus hemicellulose herbarium heterokont human flora hydroxyproline hyperthermophile intermediate filament international association for plant taxonomy international code of botanical nomenclature ion leaf lignin lipophilic bacteria lipopolysaccharide lipoprotein lipoteichoic acid lysogenic cycle lysosome magnesium mannose melanosome meristem methanobacterium methanogen methanomicrobium methanosarcina methanothermus microaerophile microbiology microbody microfibril microfilament micrograph microtubule microtubule organizing center mitochondrion molecular biology morphogenesis n-acetylglucosamine n-acetylmuramic acid n-acetyltalosaminuronic acid nanaerobe nucleolus obligate anaerobe organelle osmosis paleobotany parenthesome pathogenic bacteria pectic acid pectin penicillin peptide peptidoglycan periplasmic space peroxisome phagosome photosynthesis pilus plant plant anatomy plant cell plant cuticle plant evolutionary developmental biology plant hormone plant morphology plant pathology plant physiology plant sexuality plant stem plant taxonomy plasmodesma plastid pollen pollination polymer polysaccharide prokaryotic cytoskeleton pronase proteasome protein protist protozoa pseudomonas aeruginosa pseudopeptidoglycan radiolarian red algae ribosome root s-layer salinity saprolegnia scanning electron microscope seaweed secondary cell wall seed semipermeable membrane silicic acid skin flora slime layer sodium species plantarum spindle pole body sporangium spore sporophyte sporopollenin stoma suberin sulfate teichoic acid transpiration tree turgor pressure vacuole vaginal flora vancomycin vascular tissue water wax weibel-palade body wiktionary wood xylan xylem xyloglucan