4.1 Study Guide

Question 1

Does all biomass make it from one trophic level to the next?

Answer 1

No, only about 10% does.

Question 2

How is energy “lost”?

Answer 2

Through heat, such as cellular respiration and waste.

Question 3

What is the main idea of photosynthests?

Answer 3

Light energy is converted to chemical energy.

Question 4

What can cause differences in population size in a pyramid of numbers?

Answer 4

The size of the organism.

Question 5

What does photosynthesis result in?

Answer 5

Oxygen and sugar.

Question 6

What does cellular respiration need?

Answer 6

Glucose and oxygen.

Question 7

What does cellular respiration produce?

Answer 7

Carbon dioxide, water, and chemical energy.

Question 8

If a herbivore digests 4 grams of grass each day and wastes 2.4 grams, how much is cellular respiration? The herbivore’s biomass increases 0.64 grams each day.

Answer 8

0.96 grams is released through cellular respiration.

Question 9

Do pyramids of energy and pyramids of biomass generally look similar or different from one another?

Answer 9

They look similar (generally with the larger amounts on the bottom and decreasing as it goes up.