short answers of the following questions:
What are the four types of bacteria according to shapes?
What do you mean by Industrial bacteria?
Explain the different autotrophic modes of nutrition in
Name the five Kingdoms proposed by Whittaker.
Describe salient features of Cyanobacteria.
Bacteria.
Answers
Answer:
1) Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters.
2) Bacteria are used in industry in a number of ways that generally exploit their natural metabolic capabilities. They are used in manufacture of foods and production of antibiotics, probiotics, drugs, vaccines, starter cultures, insecticides, enzymes, fuels and solvents.
3) Autotrophic nutrition is a process in which the organism produces their food from the simple inorganic materials such as water, carbon dioxide and mineral salts in the presence of sunlight. ... They make their own food with the help of the water, solar energy, and carbon dioxide by the method of photosynthesis.
4) Whittaker proposed an elaborate five kingdom classification – Monera, Protista, Fungi, Plantae and Animalia.
5) These organisms are oxygenic phototrophs, meaning they make energy from light and generate oxygen as a waste product. Photosynthesis in cyanobacteria is accomplished by several pigments; specifically, green chlorophyll a and blue phycocyanin are the major pigments.
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