Biology miscellaneous


  1. The function of Trypsin is to









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    Trypsin is a serine pro-tease found in the digestive system of many vertebrates, where it hydrolyses proteins. Trypsin is produced in the pancreas. Trypsin cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when either is followed by proline. It is used for numerous biotechnological processes.

    Correct Option: C

    Trypsin is a serine pro-tease found in the digestive system of many vertebrates, where it hydrolyses proteins. Trypsin is produced in the pancreas. Trypsin cleaves peptide chains mainly at the carboxyl side of the amino acids lysine or arginine, except when either is followed by proline. It is used for numerous biotechnological processes.


  1. Root nodules are commonly found in :









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    Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.

    Correct Option: C

    Leguminous plants are plants with root nodules. These plants need root nodules because the bacteria in these nodules covert nitrogen into nitrates and give it to the plant. The plant uses this nitrogen to make proteins and other stuff. In return the plants use the provide shelter and carbohydrates to the bacteria.



  1. Which one of the following is not a true fish ?









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    Although sea stars (star fish) live underwater and are commonly called "starfish," they are not fish. They do not have gills, scales, or fins like fish do and they move quite differently from fish. While fish propel themselves with their tails, sea stars have tiny tube feet to help them move along.

    Correct Option: B

    Although sea stars (star fish) live underwater and are commonly called "starfish," they are not fish. They do not have gills, scales, or fins like fish do and they move quite differently from fish. While fish propel themselves with their tails, sea stars have tiny tube feet to help them move along.


  1. What is “ALZHEIMER’S” disease ?









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    Alzheimer's disease is a progressive neurological disease of the brain leading to the irreversible loss of
    neurons and the loss of intellectual abilities, including memory and reasoning, which become severe enough to impede social or occupational functioning. Alzheimer's disease is also known as simply Senile Dementia.

    Correct Option: A

    Alzheimer's disease is a progressive neurological disease of the brain leading to the irreversible loss of
    neurons and the loss of intellectual abilities, including memory and reasoning, which become severe enough to impede social or occupational functioning. Alzheimer's disease is also known as simply Senile Dementia.



  1. Which of the following diseases is spread through contaminated food?









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    Typhoid fever is a disease that is caused by the bacteria Salmonella Ty-phi. Most people get typhoid fever by eating or drinking food or water that has been contaminated by people with the disease, including by those who do not have any symptoms. Person-to-person spread can also occur.

    Correct Option: C

    Typhoid fever is a disease that is caused by the bacteria Salmonella Ty-phi. Most people get typhoid fever by eating or drinking food or water that has been contaminated by people with the disease, including by those who do not have any symptoms. Person-to-person spread can also occur.