energy transfer efficiency and how to improve it Flashcards

1
Q

where is the most energy loss in an ecosystem and give potential reasons why? (3)

A

between the sun and producer

  • light is the wrong wavelength
  • light strikes non-photosynthetic region
  • energy is lost as heat
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2
Q

between the producer and primary consumer how is energy lost? (4)

A
  • respiratory loss e.g energy for plants metabolism i.e active transport
  • lost as heat
  • not all of plant is eaten
  • some food is not digested (poops)
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3
Q

between the primary consumer and secondary consumer how is energy lost? (4)

A
  • respiratory loss (primary consumer uses energy for metabolism)
  • lost as heat
  • not all animal (1’ consumer) is eaten (bones)
  • some food not digested
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4
Q

how can you shorten the food web?

A

reduce competition so plant has more energy to create biomass

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5
Q

effect of fertilisers

A

prevent growth limitations due to lack of nutrients

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6
Q

reducing respiratory loss (give example)

A

stopping cattle moving or keeping them inside in winter

- reduces respiration for movement/heatloss prevention

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