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Questions and Answers
What is the main purpose of digestion in living organisms?
What is the main purpose of digestion in living organisms?
- To prevent food from being eliminated as waste
- To convert complex food substances into simple, soluble forms (correct)
- To absorb and distribute enzymes throughout the body
- To mechanically break down large pieces of food
Which phase of digestion involves the physical breakdown of large food pieces?
Which phase of digestion involves the physical breakdown of large food pieces?
- Extracellular phase
- Simple phase
- Mechanical phase (correct)
- Chemical phase
What are enzymes responsible for in the process of digestion?
What are enzymes responsible for in the process of digestion?
- Breaking apart molecules of food (correct)
- Absorbing food molecules
- Breaking down teeth
- Releasing digestive chemicals
In which type of animals does digestion and absorption of food take place in the alimentary canal or gut?
In which type of animals does digestion and absorption of food take place in the alimentary canal or gut?
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What distinguishes an intracellular alimentary tract from an extracellular alimentary tract?
What distinguishes an intracellular alimentary tract from an extracellular alimentary tract?
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Why do simple unicellular animals not have an alimentary canal?
Why do simple unicellular animals not have an alimentary canal?
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