Respiration and Energy Release in Living Organisms

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Questions and Answers

What is the main process by which energy is released from digested food?

  • Photosynthesis
  • Excretion
  • Digestion
  • Respiration (correct)

Which gas is taken in during external respiration or breathing?

  • Oxygen (correct)
  • Nitrogen
  • Methane
  • Carbon Dioxide

What are the waste products eliminated during respiration?

  • Sugar and Salt
  • Carbon Monoxide and Hydrogen
  • Carbon Dioxide and Water (correct)
  • Oxygen and Glucose

Where does internal respiration occur?

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

What happens to glucose molecules during respiration?

<p>React with Oxygen to Release Energy (C)</p> Signup and view all the answers

What is the chemical formula for the breakdown of glucose during respiration?

<p>$C6H_{12}O6 + 6O2 \rightarrow 6CO2 + 6H2O + Energy$ (B)</p> Signup and view all the answers

Do plants respire by taking in oxygen and giving out:

<p>$CO2$ (D)</p> Signup and view all the answers

Which process occurs when oxygen breaks down food to release energy?

<p>Respiration (B)</p> Signup and view all the answers

During respiration, the nutrients of the digested food react with nitrogen in the body cells to release energy.

<p>False (B)</p> Signup and view all the answers

Internal respiration occurs in the lungs of living organisms.

<p>False (B)</p> Signup and view all the answers

Plants do not respire like animals by taking in oxygen.

<p>False (B)</p> Signup and view all the answers

External respiration involves inhaling air rich in carbon dioxide and exhaling air rich in oxygen.

<p>False (B)</p> Signup and view all the answers

The chemical reaction involved in respiration includes breaking down glucose into oxygen and water.

<p>False (B)</p> Signup and view all the answers

Respiration is the process of releasing energy from food by oxidation.

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

Both plants and animals respire by taking in oxygen and giving out carbon dioxide.

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

Glucose molecules react with oxygen during respiration to release energy.

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

What is the process of releasing energy from digested food by oxidation known as?

<p>Respiration</p> Signup and view all the answers

What are the two main processes of respiration?

<p>External respiration and internal respiration</p> Signup and view all the answers

What are the waste products eliminated during respiration?

<p>Carbon dioxide and water</p> Signup and view all the answers

In respiration, what do glucose molecules react with to release energy?

<p>Oxygen</p> Signup and view all the answers

Where does internal respiration occur?

<p>In body cells</p> Signup and view all the answers

What gas is taken in during external respiration or breathing?

<p>Oxygen</p> Signup and view all the answers

Do plants also respire by taking in oxygen and giving out?

<p>Yes</p> Signup and view all the answers

What chemical reaction is involved in respiration?

<p>C6H12O6 + 6O2 -&gt; 6CO2 + 6H2O + Energy</p> Signup and view all the answers

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