The encapsulation makes bacteria more pathogenic. It protects bacteria from phagocytosis by macrophages. Capsule increases tolerance from... View Article
Bacterium Helicobacter pylori causes peptic ulcer. Barry J. Marshall and Robin Warren discovered H.pylori in 1982 and received a Nobel prize for... View Article
Not all bacteria are pathogenic. Many bacteria are beneficial to us. Microbiota present in the gut helps us in digesting food and produces... View Article
Soil bacteria are important for nutrient recycling and decomposition of organic matter. Due to bacterial action, nutrients become available to... View Article
Nitrogen-fixing bacteria are free-living as well as symbiotic. Rhizobium is a symbiotic bacteria present in the root nodules of leguminous... View Article
Bacteria increase soil fertility through nutrient recycling such as carbon, nitrogen, sulphur and phosphorus. Bacteria decompose dead organic... View Article
Seeds can sometimes germinate inside the fruit. When seed develops prematurely inside the fruit or attached to the parent plant, it is known as... View Article
Seed germinating while attached to the parent plant is known as vivipary. Mangroves inhabiting the marshy areas show viviparity. Seeds cannot... View Article
Xylem is a water-conducting complex tissue. It transports water and minerals from roots to other parts of the plant. The xylem of angiosperms is... View Article
The primary elements required for photosynthesis by higher plants are carbon dioxide, sunlight and water. Carbon dioxide is converted to sugar... View Article
Yes, photosynthesis occurs in some bacteria, e.g. purple and green-sulphur bacteria and cyanobacteria. Photosynthetic pigments are present in the... View Article
Plants capture light energy from the sun for photosynthesis. Chlorophyll pigment present in the chloroplast captures energy from the sun and... View Article
Ribosomes are synthesized in the cytoplasm of the bacterial cell. In eukaryotes, assembly of ribosomal proteins and rRNA occurs in the nucleolus... View Article
Yes, ribosomes are present in prokaryotic cells. The ribosomes of prokaryotic cells are the 70S, which is made up of 50S and 30S subunits.... View Article
Translation is the process of protein synthesis from RNA. Ribosomes are the site of protein synthesis. Ribosomal subunits bring together mRNA... View Article
Ribosomes are made up of 60 percent rRNA and 40 percent protein. They are not a membrane-bound organelle. Ribosomal assembly takes place in the... View Article
Ribosomes are made up of rRNA and proteins and are not membrane-bound organelle. Ribosomal proteins and rRNA are assembled in the nucleolus to... View Article
Ribosomes are the site of protein synthesis. Ribosomes hold mRNA and tRNA together. The small subunit binds to mRNA template first and then the... View Article
Protists are not bacteria, they are unicellular eukaryotes. Examples of protists include protozoan, dinoflagellates, slime moulds, etc. Further... View Article
