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Life Processes Test - 70

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Life Processes Test - 70
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  • Question 1
    1 / -0
    Lymph provides immunity because
    Solution
    WBCs are divided into leucocytes and lymphocytes. Lymphocytes are further divided into macrophages and monocytes. These cells help in the engulfment of any foreign particles inhaled or ingested by our body. Lymphocytes are considered as soldier cells of our body. A Large proportion of these cells is found in the lymphatic system wherein the lymph is present. Thus lymph provides immunity. So, the correct answer is option A.
  • Question 2
    1 / -0
    Lymph transports white blood cells from
    Solution
    A. Spleen also referred to as the graveyard of RBCs removes worn-out RBCs and fights infections. It is a part of the lymphatic system
    B. Pancreas The lymphatic system of pancreas drains excess fluid that contains leaking hormones and some enzymes from interstitial spaces.
    C. Lymph nodes filter the lymph as it passes through these nodes. They board lymphocytes which help in removing wastes and antigens. In case of infection, lymph nodes transport WBCs to blood
    D. Liver produces a large amount of lymph, the lymphatic system of liver functions as a tissue drainage system and immunological control system. 
    So the answer is C
  • Question 3
    1 / -0
    Which of these groups of words means the same thing?
    Solution
    • The green plants, algae, and other organisms which possess the chlorophyll pigment are known as producers. 
    • They are autotrophs that can utilize the energy from the sun and prepare their own food. 
    • They are the only producers which can synthesize the food products. 

    Thus, the correct answer is option B. 
  • Question 4
    1 / -0
    Living organisms have ______ essential processes.
    Solution
    Living organisms are made up of different types of cells. These cells form different organs and perform various functions. All living organisms show the following seven main processes namely nutrition, reproduction, respiration, movement, growth, excretion, and sensitivity. 
    Thus, the correct answer is option C.
  • Question 5
    1 / -0
    Choose the incorrect statement.
    Solution
    Correct Answer: A
    Explanation:
    • Pyruvate is the end product of glycolysis.
    •  The cytoplasm of the cell. is the site of glycolysis.
    • While in the mic=tochondrial matrix, the Electron transport chain occurs.
    • Hence, the correct option is "Pyruvate is formed in the mitochondrial matrix>"
  • Question 6
    1 / -0
    The normal systolic pressure is 
    Solution
    Systolic pressure is measured in the arteries when the heart contracts and is 120 mm of Hg in a normal condition.
    Diastolic pressure is measured when the heart is relaxed and it is 80 mm of Hg.
    Values above or below them are considered abnormal.
    So, the correct answer is ' 120 mm of Hg'.
  • Question 7
    1 / -0
    Which among the following parts of the digestive system produces chyme?
    Solution
    • Chyme is the partially digested soft, pulpy food, which is mixed with gastric juice in the stomach.
    • The mouth produces bolus created due to chewing and mixing of saliva.
    • In the small intestine the chyme is received and completely digested and nutrients are absorbed.
    • The liver is not a part of the alimentary tract and hence food doesn't enter in it. It only helps in digestion of fats.
    So, the correct answer is option C.
  • Question 8
    1 / -0
    The excretory unit in the human excretory system is called _______.
  • Question 9
    1 / -0
    Which among the following do not follow all seven life processes?
    Solution
    Among the mentioned organisms, the one that does not follow all the life processes is the virus. It is a type of organism which only shows signs of life when it is living inside another organism. Hence, viruses are an exception to living organisms and the activities performed by living organisms.
    So, the correct option is 'D'.
  • Question 10
    1 / -0
    The product obtained by the anaerobic respiration of yeast is 
    Solution
    The product obtained in the anaerobic respiration of yeast is ethanol. This process is known as fermentation. Alcoholic fermentation is carried out by unicellular organisms like yeast. Yeast breaks down pyruvic acid from glucose anaerobically into ethanol and carbon dioxide in the cytoplasm.
    Thus, the correct answer is option C. 
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