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CBSE Class 10 Life Processes in Living Organisms Part 1 — practice questions — page 2

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 31–60 of 103.

As per your syllabus, what is the energy released when the TERMINAL PHOSPHATE bond in ATP is broken using water?Read the answer and worked solution →Which of the following is NOT one of the four life processes covered in Class 10?Read the answer and worked solution →An organism that prepares its own food using sunlight is called:Read the answer and worked solution →A living body must keep moving molecules around even at rest because:Read the answer and worked solution →The pigment that captures light in photosynthesis is:Read the answer and worked solution →Bile is secreted by the:Read the answer and worked solution →Lactic acid builds up in human muscles during:Read the answer and worked solution →Aerobic respiration of one molecule of glucose produces approximately:Read the answer and worked solution →The villi in the small intestine help in:Read the answer and worked solution →Photosynthesis converts CO₂ and water into glucose using:Read the answer and worked solution →The human heart has how many chambers?Read the answer and worked solution →Blood vessels that carry blood AWAY from the heart are called:Read the answer and worked solution →In plants, water and minerals are carried upward by:Read the answer and worked solution →The basic structural and functional unit of the kidney is the:Read the answer and worked solution →Evaporation of water from leaf surfaces — the suction that helps pull water up the xylem — is called:Read the answer and worked solution →Why does the human heart have a complete septum between left and right sides?Read the answer and worked solution →In dialysis, the machine carries out the function of which organ?Read the answer and worked solution →Photosynthesis overall reaction is:Read the answer and worked solution →Anaerobic respiration in muscle produces:Read the answer and worked solution →Match each digestive site to its enzyme / secretion.Read the answer and worked solution →CLASS10 · Biology · Life Processes — True or FalseRead the answer and worked solution →CLASS10 · Biology · Digestion — Path of FoodRead the answer and worked solution →CLASS10 · Biology · Heart — Blood Flow SequenceRead the answer and worked solution →CLASS10 · Biology · Aerobic or AnaerobicRead the answer and worked solution →The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct oneRead the answer and worked solution →Which part of alimentary canal receives bile from the liver?Read the answer and worked solution →In which part of the alimentary canal food is finally digested?Read the answer and worked solution →When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence ofRead the answer and worked solution →During respiration exchange of gases take place inRead the answer and worked solution →In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?Read the answer and worked solution →

Worked practice questions

As per your syllabus, what is the energy released when the TERMINAL PHOSPHATE bond in ATP is broken using water?

  1. About 30.5 kJ/mol
  2. About 100 J
  3. Several MJ
  4. Zero — no energy
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Correct answer: A. About 30.5 kJ/mol

As per your syllabus, ATP box, terminal phosphate hydrolysis releases ~30.5 kJ/mol — used to drive endothermic cellular reactions.

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Which of the following is NOT one of the four life processes covered in Class 10?

  1. Photoperiodism
  2. Respiration
  3. Nutrition
  4. Transportation
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Correct answer: A. Photoperiodism

Class 10 covers nutrition, respiration, transportation, and excretion. Photoperiodism (response to day length) is a Class 11/12 topic.

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An organism that prepares its own food using sunlight is called:

  1. heterotroph
  2. autotroph
  3. parasite
  4. saprotroph
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Correct answer: B. autotroph

Autotrophs synthesise their own food (e.g., green plants via photosynthesis). Heterotrophs eat pre-made food.

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