B1 - Biomass & Food Chains

Question 1

All the energy grass absorbs from the Sun is eventually lost to the surroundings. In what form is this energy lost?

Answer 1

Heat from respiration.

Question 2

Give three reasons why so little of the energy in the trees is passed on to the carnivores.

Answer 2

Lost as heat (and to keep the body warm), lost in movement, lost in faeces and urine, lost in respiration.

Question 3

Give three ways in which energy released in respiration is used.

Answer 3

Maintain body temperature, heartbeat, movement.

Question 4

How is energy stored in new plants?

Answer 4

Sugar, carbohydrates, proteins, fats.

Question 5

Many of the animals which from part of our diet are herbivores rather than carnivores. Explain why as fully as you can.

Answer 5

Plants at the start of all food chains so the food chain is shorter and less energy is lost.