Life Process Class 10 Science Karnataka Board

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Questions and Answers

What is the main focus of the Life Process chapter in class 10 science for Karnataka board?

  • Exploring plant photosynthesis
  • Investigating blood circulation
  • Understanding the human digestive system (correct)
  • Studying cellular respiration

Which of the following is not a life process occurring in living organisms?

  • Transportation
  • Excretion
  • Reproduction
  • Cementation (correct)

Why is respiration considered an essential life process?

  • To regulate body temperature
  • To release energy from food (correct)
  • To produce glucose
  • To synthesize proteins

Which part of the question paper includes Physics questions?

<p>Part-A (D)</p> Signup and view all the answers

What is the total number of questions in the question paper?

<p>38 (A)</p> Signup and view all the answers

What does the right-hand margin indicate for questions in the paper?

<p>Maximum marks for the questions (A)</p> Signup and view all the answers

In the context of rejuvenating ancient water harvesting systems, why is it important to encourage this practice?

<p>To conserve water and promote sustainable agriculture practices (C)</p> Signup and view all the answers

How does the function of 'villi' and 'alveoli' differ in our body?

<p>Villi help in absorbing nutrients while alveoli help in oxygen exchange (C)</p> Signup and view all the answers

Why is it important for germ cells to receive only half the amount of DNA during reproduction?

<p>To maintain the correct number of chromosomes in the offspring (A)</p> Signup and view all the answers

Why does silver chloride exposed to sunlight turn grey in color?

<p>Due to the decomposition of silver chloride into silver and chlorine (A)</p> Signup and view all the answers

What is the electronic configuration of potassium (K)?

<p>2, 8, 8, 1 (B)</p> Signup and view all the answers

Why is the conversion of ethanol to ethanoic acid considered an oxidation reaction?

<p>Ethanol loses electrons during the reaction (A)</p> Signup and view all the answers

In a food chain from algae to small fish to large fish to humans, how are the trophic levels arranged?

<p>Increasing order of energy availability (D)</p> Signup and view all the answers

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