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Life Processes Test - 24

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Life Processes Test - 24
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  • Question 1
    1 / -0

    Alcohol is produced by which of the following processes?

    Solution
    Anaerobic respiration is the type of respiration through which cells can break down sugars to generate energy in the absence of oxygen. Alcohol is produced in alcoholic fermentation. In this type of anaerobic respiration, glucose is split into ethanol or ethyl alcohol. This process also produces two ATP per sugar molecule. This occurs in yeast and even in some types of fish, such as goldfish.
    Hence, the correct option is (C).
  • Question 2
    1 / -0

    Muscle Fatigue is caused by the accumulation of

    Solution
    Lactic acid is formed and accumulated in the muscle under conditions of high energy demand at the time of vigorous exercise and rapid flucuations of the energy requirement and insufficient supply of \(O_{2}\).
    Hence, the correct option is (A).
  • Question 3
    1 / -0

    Where does aerobic respiration take place in the cell?

    Solution
    Aerobic respiration is the process of cellular respiration that uses oxygen to produce energy from food. This type of respiration is common in most plants and animals, including humans, birds, and other mammals.In the cell, Aerobic respiration occurs within the mitochondria of a cell
    Hence, the correct option is (A).
  • Question 4
    1 / -0

    Which pigment helps in the transportation of oxygen in humans?

    Solution
    Haemoglobin transports oxygen molecules to all the body cells for cellular respiration. The haemoglobin pigment present in the blood gets attached to O2 molecules that are obtained from breathing and thus forms oxyhaemoglobin. This oxygenated blood is then distributed to all the body cells by the heart. After giving away O2 to the body cells, blood takes away CO2 which is the end product of cellular respiration and blood becomes de-oxygenated.
    Hence, the correct option is (C).
  • Question 5
    1 / -0

    The first step of respiration is the breakdown of glucose into _________.

    Solution
    The first step of respiration is the breakdown of glucose into pyruvate molecules Glycolysis is the process of breaking down a glucose molecule into two pyruvate molecules while storing energy released during this process as ATP and NADH.
    Hence, the correct option is (A).
  • Question 6
    1 / -0

    Energy released during respiration is stored in the form of

    Solution
    The energy produced during respiration is stored in the form of ATP molecules in the cells of the body and used by the organism when required.
    ADP (Adenosine Di-Phosphate, low energy content), Inorganic Phosphate (Pi), and ATP (Adenosine Tri-Phosphate, high energy content) are the substances present inside a cell.
    The energy released during respiration is used to make ATP molecules from ADP and inorganic phosphate.
    \(\underset{(Low\;energy)}{ADP} + Phosphate + Energy \rightarrow \underset{High\;energy}{ATP}\)
    Thus, energy is stored in the form of ATP which is also known as the energy currency of the cell.
    Hence, the correct option is (A).
  • Question 7
    1 / -0

    Which is the respiratory organ of fishes?

    Solution
    Aquatic respiration is the process whereby an aquatic animal obtains oxygen from water. Most fish exchange gases using gills on either side of the pharynx (throat). Gills are tissues that consist of threadlike structures called filaments. These filaments have many functions and "are involved in ion and water transfer as well as oxygen, carbon dioxide, acid, and ammonia exchange. Hence, The respiratory organs of fish are gills.
    Hence, the correct option is (A).
  • Question 8
    1 / -0

    Breathing is a ___________ process.

  • Question 9
    1 / -0

    The process of breakdown of glucose into pyruvate is called __________.

    Solution
    Glycolysis is the process of breaking down a glucose molecule into two pyruvate molecules while storing energy released during this process as ATP and NADH. Nearly all organisms that break down glucose utilize glycolysis. Glucose regulation and product use are the primary categories in which these pathways differ between organisms.
    Hence, the correct option is (A).
  • Question 10
    1 / -0

    Glottis opens at the surface of  

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