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CBSE Class 10 Life Processes in Living Organisms Part 1 — practice questions — page 4

Explore 103 free Life Processes in Living Organisms Part 1 questions in CBSE Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.

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Life Processes in Living Organisms Part 1 questions and exercises with answers

Showing questions 91–103 of 103.

Lack of oxygen in muscle turns pyruvate into:Read the answer and worked solution →Build-up of lactic acid in muscles causes:Read the answer and worked solution →Aerobic or anaerobic respiration?Read the answer and worked solution →Match each part to what it doesRead the answer and worked solution →True or false about life processesRead the answer and worked solution →Fill the gaps on life processesRead the answer and worked solution →Sort each item by where it actsRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Match each vital life process with its biological definition:Read the answer and worked solution →Match each organ of human alimentary canal with its digestive function:Read the answer and worked solution →Match each respiratory component with its role in human gas exchange:Read the answer and worked solution →Match each vascular component with its transport duty in human circulation:Read the answer and worked solution →

Worked practice questions

Lack of oxygen in muscle turns pyruvate into:

  1. Linoleic acid
  2. Lipoic acid
  3. Lactic acid
  4. Lauric acid
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Correct answer: C. Lactic acid

1. It is also a three-carbon molecule. 2. It builds up during sudden activity. 3. It is lactic acid. _Source: syllabus Science, Ch 6 'Life Processes'_

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Build-up of lactic acid in muscles causes:

  1. Cramming
  2. Crackling
  3. Crumbling
  4. Cramps
Show answer and solution

Correct answer: D. Cramps

1. It happens during sudden activity. 2. The muscle has run short of oxygen. 3. It causes cramps. _Source: syllabus Science, Ch 6 'Life Processes'_

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Aerobic or anaerobic respiration?

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Left
Aerobic
Items
  1. Item
    Uses oxygen
    Answer
    Aerobic
  2. Item
    In mitochondria
    Answer
    Aerobic
  3. Item
    Gives more energy
    Answer
    Aerobic
  4. Item
    Makes water too
    Answer
    Aerobic
  5. Item
    No oxygen used
    Answer
    Anaerobic
  6. Item
    Yeast fermenting
    Answer
    Anaerobic
  7. Item
    Makes ethanol
    Answer
    Anaerobic
  8. Item
    Makes lactic acid
    Answer
    Anaerobic
Right
Anaerobic
Instructions
Swipe left for Aerobic, right for Anaerobic.
_Source: syllabus Science, Ch 6 'Life Processes'_

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