Ch.2 - Vocabulary Flashcards
Cellulose
Polysaccharide of glucose that forms plant cell walls
Starch
Polysaccharide of glucose that acts as a storage carbohydrate in plants
Sucrose
Disaccharide made from glucose and fructose. The main sugar transported in the phloem of plants.
Glycogen
Polysaccharide of glucose that acts as a storage carbohydrate in animals and fungi. Found in liver and muscles.
Chitin
Chemical made in the cell walls of fungi
Saprotrophic
Type of nutrition where dead organic material is digested outside the body of the organism by extracellular enzymes. Carried out by fungi and most bacteria
Capsule
Slime layer covering some bacterial cells. Protects the bacterium and stops it drying out.
Peptidoglycan
A complex compound of sugars and proteins called peptidoglycan.
Plasmid
Small circular piece of DNA found in bacteria and used in genetic engineering
Decomposer
Organism that feeds by breaking down the dead remains of other organisms, e.g. some bacteria and fungi
Pathogen
Organism that causes disease, e.g. some bacteria