Insect Life Cycles and Adaptions for Nutrition

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  • Created by: Loomy
  • Created on: 22-04-14 11:32

1. Why do herbivores need a lot of bacteria within the caecum?

  • Because herbivores cannot digest cellulose on their own, they need cellulase to digest it
  • The bacteria break down proteins
  • The bateria produce a lot of acid, providing the optimum conditions for enzymes
  • The herbivore cannot digest the lignin in plant cell walls, so the bacteria contain ligase to digest it
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2. Why do humans have a gut of intermediate length between carnivores and herbivores?

  • Humans are omnivores (eat both meat and plant material)
  • The human gut is more efficient than a herbivore gut
  • Humans do not need to digest cellulose
  • Carnivores and herbivores can regurgitate their food it needs to digest it further

3. What difference is there between the guts of carnivores and herbivores?

  • Carnivores have a longer small intestine than herbivores
  • The carnivore gut is much shorter than the herbivore gut
  • Carnivores have a larger caecum than herbivores
  • Herbivores have a duodenum, carnivores do not

4. Where in the human gut does absorption take place?

  • Stomach, small intestine and large intestine
  • Small intestine and large intestine
  • Mouth and large intestine
  • Large intestine

5. What are the two different types of insect life cycles?

  • Exopterygota metamorphosis and Endopterygota metamorphosis
  • Incomplete metamorphosis and complete metamorphosis
  • Complete metamorphosis and developing metamorphosis
  • Irregular metamorphosis and regular metamorphosis


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