Energy Transfer & Productivity (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What percentage of solar energy do plants typically capture through photosynthesis?
What percentage of solar energy do plants typically capture through photosynthesis?
1-3%
Why does most solar energy fail to be captured by plants?
Why does most solar energy fail to be captured by plants?
Over 90% reflected or absorbed by atmosphere
Which equation correctly represents net primary production (NPP)?
Which equation correctly represents net primary production (NPP)?
What percentage of GPP do plants use for their own respiration processes?
What percentage of GPP do plants use for their own respiration processes?
20-50%
What percentage of NPP can primary consumers typically use for growth?
What percentage of NPP can primary consumers typically use for growth?
Less than 10%
What is the approximate energy transfer efficiency for secondary and tertiary consumers?
What is the approximate energy transfer efficiency for secondary and tertiary consumers?
20%
Why do mammals and birds have particularly high energy losses?
Why do mammals and birds have particularly high energy losses?
Constant body temperature needs thermoregulation
Which formula calculates net production for consumers?
Which formula calculates net production for consumers?
If trout receive 250 kJ and humans 50 kJ, what is the energy transfer efficiency?
If trout receive 250 kJ and humans 50 kJ, what is the energy transfer efficiency?
20%
How does intensive rearing of livestock increase energy efficiency?
How does intensive rearing of livestock increase energy efficiency?
Restricts movement to reduce energy use