Botany and Branches
- Leishmania, the causative agent of kala-azar, multiplies asexually by
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Leishmania reproduces asexually by binary fission. It is a causative agent of kala-azar.
Correct Option: B
Leishmania reproduces asexually by binary fission. It is a causative agent of kala-azar.
- Administering a vaccine provides protection by inducing synthesis of antibodies (proteins) specific of the vaccine. The cell in the body responsible for the production of antibodies is
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Lymphocyte is a type of white blood cell (WBC). They produce a protein called antibodies in the presence of foreign molecules called antigens.
Correct Option: B
Lymphocyte is a type of white blood cell (WBC). They produce a protein called antibodies in the presence of foreign molecules called antigens.
- Biological catalysis in living organisms are known as
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Enzymes are biological catalysts that increases the rate of reaction without altering its structure.
Correct Option: D
Enzymes are biological catalysts that increases the rate of reaction without altering its structure.
- Among the following elements, which one is essential for the transmission of impulses in the nerve fibre ?
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Sodium, chloride and potassium ions are essential for the transmission of nerve impulses.
Correct Option: C
Sodium, chloride and potassium ions are essential for the transmission of nerve impulses.
- Which one of the following organs breaks down fat to produce cholesterol ?
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Liver cells secrete bile, biles help in emulsification of fat i.e. breaking down of fats into small micelles.
Correct Option: B
Liver cells secrete bile, biles help in emulsification of fat i.e. breaking down of fats into small micelles.
