Self Studies
Self Studies
Self Studies
Self Studies

Respiration in Plants Test - 53

Result Self Studies

Respiration in Plants Test - 53
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Hydration reaction occurs in Krebs cycle during conversion of
    Solution
    In the Krebs cycle hydration reaction occurs in two steps of cycle. First hydration reaction occurs in the third step during the conversion of cis aconitate to isocitrate in the presence of enzyme aconitase. The second hydration reaction occurs in second last step of Krebs cycle in which fumarate changes into 4-carbon malate in the presence of water and an enzyme fumarase. 
    Thus, the correct answer is option D. 
  • Question 2
    1 / -0
    Mineral activator of enzyme aconitase is
    Solution
    Aconitase is an enzyme that catalyzes the reorganization of citrate into cis-aconitate releasing water. It is an iron-sulfur protein that functions both in TCA cycle as well as glyoxylate cycle. It is also known as citrate hydro lyase. The active site of enzyme consists of 21 amino acids and iron-sulfur cluster. 
    Thus, the correct answer is option C. 
  • Question 3
    1 / -0
    In cytochromes, electrons are picked up and released by
    Solution
    The electron transport chain uses various compounds to carry electrons. These compounds include cytochromes which are proteins with a heme prosthetic group that contains an iron atom. The iron atoms accepts and donates electrons. Thus, the correct answer is option A. 
  • Question 4
    1 / -0
    Anaerobic respiration is
    Solution

    A.Correct option - D
    B.Explanation for correct option -

    • The process of fermentation is the form of anaerobic respiration carried by some microorganisms.
    • Many microorganisms such as fungus and bacteria can grow and flourish in the complete absence of oxygen.
    • Such microorganisms can utilize sugars to convert them into ethanol and evolve carbon dioxide.
    • Since it is the incomplete breakdown of glucose, it yields a small amount of energy which is sufficient to maintain the life of organisms like yeast and bacteria. 

  • Question 5
    1 / -0
    Which type of fermentation is accompanied by CO$$_2$$ evolution?
    Solution
    The breakdown of glucose to form ethanol and carbon dioxide is known as alcoholic fermentation. This takes place in the cytoplasm of cells. The substrate is glucose which undergoes glycolysis to form pyruvate. This pyruvate is then converted into acetaldehyde after the removal of one carbon and then ethanol is formed along with carbon dioxide.
    So, the correct option is 'Alcoholic fermentation'
  • Question 6
    1 / -0
    In alcoholic fermentation, CO$$_2$$ is evolved during
    Solution
    Fermentation is a type of anaerobic respiration in which the glucose is converted to release gases, acids and alcohols.
    During the alcoholic fermentation of glucose, glycolysis takes place as a result of which pyruvic acid is formed. Pyruvic acid is a three-carbon molecule.
    It is then converted into acetaldehyde by losing one carbon dioxide molecule as decarboxylation of pyruvic acid takes place and it forms to 2C acetaldehyde.
    So, the correct option is 'Both A and B'
  • Question 7
    1 / -0
    The respiratory enzymes are located in
    Solution
    The respiratory enzymes for Krebs cycle are located in the matrix of mitochondria.
    So the answer is 'Mitochondrial matrix'.
  • Question 8
    1 / -0
    Pyruvic dehydrogenase is used in converting _________________.
    Solution
    Answer is option A i.e. "Pyruvic acid to acetyl co-enzyme A"
    Pyruvic dehydrogenase is a unique enzyme which links glycolysis to the Kreb's cycle by converting pyruvic acid formed in cytoplasm to acetyl co-enzyme A in mitochondria.
  • Question 9
    1 / -0
    An important requirement of fermentation is
    Solution
    Zymase, as per se the definition are a class of enzymes that are obtained from yeast that help in the breakdown of glucose metabolically.
    In fermentation, the glucose is broken down partially in the presence of zymases to form lactic acid or ethanol depending upon the pathway.
    So, the correct option is 'Zymase'
  • Question 10
    1 / -0
    Which of the following is not formed during anaerobic respiration?
    Solution
    Anaerobic respiration is a type of respiration in which the glucose is partially broken down in absence of oxygen. 
    Glycolysis is the first pathway that takes place in the cytoplasm and forms pyruvate. During alcoholic fermentation, this pyruvate forms ethanol and carbon dioxide.
    Acetyl-CoA enzyme is formed during the aerobic breakdown of glucose.
    So, the correct option is 'Acetyl CoA'
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now