Life Processes Quiz
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Questions and Answers

What is the process of obtaining nutrients and transferring them into the body called?

  • Digestion
  • Absorption
  • Nutrition (correct)
  • Diffusion

Viruses show molecular movement even when not infecting a cell.

False (B)

Name one type of nutrition that allows organisms to manufacture their own food.

Autotrophic nutrition

The splitting of water molecules in photosynthesis results in the production of _______ and _______.

<p>hydrogen, oxygen</p> Signup and view all the answers

Match the following processes with their descriptions:

<p>Photosynthesis = Process by which plants manufacture their own food Diffusion = Movement of molecules from high concentration to low concentration Digestion = Breakdown of food into simpler substances Nutrition = Process of obtaining and using nutrients</p> Signup and view all the answers

Which of the following organisms utilize autotrophic nutrition?

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

Diffusion is sufficient for oxygen transfer in all multicellular organisms.

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

What role do enzymes play in the digestive process?

<p>They act as bio-catalysts to break down food.</p> Signup and view all the answers

The __________ is an essential pigment involved in photosynthesis.

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

Study Notes

Life Processes

  • Viruses are not considered alive because they do not exhibit any metabolic processes until they infect a cell.
  • Diffusion is not efficient enough for oxygen transport in multicellular organisms because all cells might not be directly exposed to the environment.
  • Nutrition is the process of obtaining nutrients from the external environment and transporting them into the body.
  • Nutrients are essential for growth and development.
  • Enzymes act as biological catalysts, breaking down complex food molecules into simpler substances for digestion.
  • Autotrophic nutrition is the process where organisms synthesize their own food through photosynthesis.
  • Examples of autotrophs include plants and blue-green algae.
  • Photosynthesis involves the following key events:
    • Absorption of light energy by chlorophyll
    • Conversion of light energy into chemical energy
    • Splitting of water molecules into hydrogen and oxygen
    • Reduction of carbon dioxide to carbohydrates

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Description

Test your knowledge on the vital life processes that sustain organisms, including nutrition, respiration, and photosynthesis. This quiz covers topics like the function of enzymes, the role of autotrophs, and the inefficiency of diffusion in multicellular organisms. Dive into the fascinating world of life processes and challenge yourself!

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