Photosynthesis
Food Webs & Energy Pyramid
Cellular Respiration
100

What gas do plants take in during photosynthesis?

Carbon Dioxide

100

What is the base of every food chain or food web?

Producers/Plants

100

What is the main purpose of cellular respiration?

To release energy from food for the cell to use

200

What is the main energy source that drives photosynthesis?

Sunlight

200

What percentage of energy typically moves from one trophic level to the next?

About 10%

200

In what cell organelle does cellular respiration mainly occur?

Mitochondria

300

In what cell organelle does photosynthesis take place?

Chloroplast

300

Which organisms get energy from every trophic level when they die?

Decomposers

300

What two reactants are needed for cellular respiration?

Glucose and Oxygen

400

Write the equation for photosynthesis (reactants → products).

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

400

Why are there usually fewer top predators than producers in an ecosystem?

Less energy is available at the top of the pyramid.

400

What are the products of cellular respiration?

Carbon dioxide, water, and energy/ATP

500

Why is photosynthesis important for animals as well as plants?

It produces oxygen and food that animals depend on.

500

A rabbit eats grass. A hawk eats the rabbit. What level is the hawk?

Secondary Consumer

500

How are photosynthesis and cellular respiration connected?

The products of one are the reactants of the other; they form a cycle