SURVEY . Includes oxygenic phototrophic organisms for producing oxygen: This group can use light as the sole source of energy. Classification of phototrophic bacteria. Examples. Rhizobium) with plants that supply oxygen to the bacteria bound to … When exposed to a dye called a gram stain, gram positive bacteria trap the dye due to the structure of their walls, while gram negative bacteria release the dye readily, because their cell wall is thin. Examples of rod-shaped bacteria include Bacillus anthracis (B. anthracis), or anthrax. These are spiral or hair like in shape. CO 2. Examples include: heterocyst formation (cyanobacteria e.g. They are also called as spirochetes. They can use light as an energy source in the presence of air. Examples include Acetobacter. Cyanobacteria (blue-green algae). protists. For example Staphylococcus app, Streptococcus app. 2. Ex: syphilis-causing bacteria. Animals, according to this classification, are chemoorganotrophs; i.e., they utilize chemical compounds to supply energy and … Organic compounds. They utilize organic acid or alcohol as hydrogen donor. fungi. root nodule symbioses (e.g. Photoorganotrophs . Phototrophic bacteria are phototrophic organisms (photolithotrophs or photoorganotrophs). Most of pathogenic bacteria of human beings, other plants and animals are heterotrophs. Such organisms are called fastidious heterotrophs. Special spaces of cocci include tetrads, Sarcines; Bacilli – also rod-shaped; the singular form is known as Bacillus. They exist in multiple shapes. They are stick-like bacteria with a round tapered, square or swollen ends. Organic compounds. Tags: Question 17 . ... Gonorrhea and syphilis are examples of sexually transmitted diseases caused by: answer choices . ; Some heterotrops have simple nutritional requirement while some of them require large amount of vitamin and other growth promoting substance. They are microscopic in size and lack membrane-bound organelles as do eukaryotic cells, such as animal cells and plant cells.Bacteria are able to live and thrive in various types of environments including extreme habitats such as hydrothermal vents, hot springs, and in your digestive tract. subjective material for classification and characteristics of bacteria with examples and MCQs for Gpat and other exam preparations. Anabaena) where one cell does not photosynthesize but instead fixed nitrogen for its neighbors which in turn provide it with energy. b. Purple sulphur bacteria: For bacteria belong to this group the hydrogen donor is Thiosulphate, Bacteriochlorophyll is present. viruses. Chemolithotrophs. e) Pleomorphism: Though most bacteria have a specific shape, some do not. CO 2. Spiral: These are known as spirilla (singular spirillus). Other articles where Photo-organotroph is discussed: nutrition: Nutritional patterns in the living world: …for this purpose are called photoorganotrophs. Bacteria are enclosed by a rigid cell wall, which can vary widely in its composition, helping to distinguish between different species of bacteria. Photolithotrophs. d) Spirillum bacteria: This is a long spiral-shaped bacteria. For example the Bacillus spp Chlorophyll containing chlorosomes are present Example: Chromatium. ... Inorganic compounds (H 2 O, H 2 S, S) Green plants, photosynthetic protoctists, blue-greens, photosynthetic bacteria. Light. Example: Purple non sulphur bacteria – Rhodospirillum. they have a size of 1-10um in length and 0.3-1.0um in width. Non-sulphur purple bacteria. The heterotrophic bacteria obtain their-ready made food from organic substances, living or dead. photoorganotrophs. Bacteria are single-celled, prokaryotic organisms that come in different shapes. chemotaxic autotrophs. Photoorganotrophs.