Life Processes In Living Organisms

16 Questions
  1. 1
    Which one of the following is synthesised in human body that dilates blood vessels and increases blood flow ?
    UPSC CSE I - 2024
  2. 2
    Which one of the following is a filter feeder?
    UPSC CSE I - 2021
  3. 3
    Consider the following minerals:
    1. Calcium
    2. Iron
    3. Sodium
    Which of the minerals given above is/are required by human body for the contraction of muscles?
    UPSC CSE I - 2013
  4. 4

    Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decreases. What causes this condition?

    UPSC CSE I - 2010
  5. 5

    How do most insects respire?

    UPSC CSE I - 2007
  6. 6

    What is the name of the vessel that delivers the nutrient! Rich blood from the stomach and small intestine to the liver?

    UPSC CSE I - 2006
  7. 7

    Assertion (A): All the proteins in our food are digested in small intestine only.

    Reason (R): The protein-digesting enzyme from pancreas are released into small intestine.

    UPSC CSE I - 2005
  8. 8

    With reference to the work of human kidney, consider the following statements

    1. After the waste is removed in the kidney, the clean blood is sent back through renal artery.
    2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.

    Which of these Statements is/are correct?

    UPSC CSE I - 2003
  9. 9

    With reference to the blood in a normal person, which one of the following statements is correct?

    UPSC CSE I - 2002
  10. 10

    Match List-I with List-Il and select the correct answer using the codes given below

    List-I (Bone) List-II (Name)
    A. Breastbone 1. Clavicle
    B. Collarbone 2. Patella
    C. Kneecap 3. Scapula
    D. Shoulder blade 4. Sternum
    UPSC CSE I - 2001
  11. 11

    A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which. One of the blood groups mentioned below and readily available in the hospital will be safe for transfusion?

    UPSC CSE I - 2001
  12. 12

    At which stage in its life­cycle does the silkworm yield the fibre of commerce?

    UPSC CSE I - 2000
  13. 13

    The complete conversion of glucose, in the presence of oxygen, into carbon dioxide and water with release of energy is called.

    UPSC CSE I - 1998
  14. 14

    Arteries supplying blood to the heart are called

    UPSC CSE I - 1997
  15. 15

    Oxygen transportation in a human body takes place through

    1. Blood
    2. Lungs
    3. Tissue.

    The correct sequence of transportation is

    UPSC CSE I - 1997
  16. 16

    Which of the following would lead to malnutrition?

    1. Overnutrition
    2. Undernutrition
    3. Imbalanced nutrition

    Select the correct answer by using the codes given below

    Codes:

    UPSC CSE I - 1996