Practice free Microbes and Human Welfare (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which is used to prevent blood clotting in blood vessels?
Streptokinase is an enzyme used to dissolve blood clots in blood vessels. It is often used in the treatment of myocardial infarction (heart attack) and other conditions caused by blood clots. Streptokinase works by converting plasminogen to plasmin, which then breaks down fibrin clots.
Which one is useful as an immune suppressive agent in organ transplant?
Cyclosporin-A is an immunosuppressive drug widely used in organ transplantation to prevent rejection. It works by inhibiting the activation of T-cells, which are responsible for attacking the transplanted organ. This helps to reduce the immune response and increase the chances of transplant success.
Which bacteria is useful for purification in sewage treatment?
Heterotrophs are bacteria that play a crucial role in the purification of sewage. They break down organic matter present in sewage through the process of decomposition, thereby reducing pollution and helping in the treatment of wastewater.
Which assertion is correct?
Full form of BOD.
BOD stands for Biochemical Oxygen Demand. It is a measure of the amount of oxygen that microorganisms will consume while decomposing organic matter in water. It is an important parameter for assessing water quality.
By which process floating debris and grit are removed in STPs respectively ?
In Sewage Treatment Plants (STPs), floating debris is removed by filtration, and grit (like sand and small stones) is removed by sedimentation. Filtration helps in removing large particles, while sedimentation allows heavier particles to settle at the bottom.
Which is useful to control Nematodes in cereal crops?
Bionemotocides are biological agents that control nematodes, which are harmful to cereal crops. These agents can include beneficial bacteria, fungi, or other organisms that target nematodes specifically, thereby protecting the crops.
Which sentence is odd?
Which microorganisms involved in flocks as well as in mycorrhiza?
Fungi are involved in both flocks and mycorrhiza. Flocks are aggregates of microorganisms, including fungi, used in wastewater treatment. Mycorrhiza involves a symbiotic association between fungi and plant roots, aiding in nutrient absorption.
Find odd group out: -
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