Flow of Energy and Matter

Unit 1 - Flow of Energy and Matter in Ecosystems

Producers, Consumers, Decomposers

• Producers: Plants - they make their own energy using photosynthesis

• Consumers: Animals - they must eat other organisms to obtain energy

• Decomposers: Breaks down dead organisms to provide nutrients back into the environment

Multiple Choice

What type of organism makes its own food?

• consumer
• carnivore
• producer
• animal

Multiple Choice

A mushroom is a 

• producer
• consumer
• decomposer

Multiple Choice

A hawk is an example of a

• consumer
• producer
• decomposer

Photosynthesis

The process of plants taking light energy and turning it into chemical energy as glucose.

Reactants (what goes in) - Carbon dioxide, water

Products (what goes out) - Oxygen and sugar

Multiple Select

What are the reactants of photosynthesis? (What goes in?)

• Sugar

• Carbon Dioxide

• Water

• Oxygen

Cellular Respiration

• The process of the mitochondria turning glucose into usable energy (ATP)

• Reactants (what goes in) - sugar and oxygen

• Products (what goes out) - energy, water, and carbon dioxide

Multiple Choice

The main purpose of cellular respiration is to make...

• energy

• waste

• carbon dioxide

A food chain is a simple model of how energy travels through an ecosystem. A food web is a series of food chains interconnected.

Multiple Choice

This is an example of a food chain.

• YES

• NO

Multiple Choice

This is an example of a food web.

• YES

• NO

Energy Pyramids

A model that shows the amount of energy in each level of the food chain.

Multiple Select

An energy pyramid...

• models the energy in an ecosystem

• shows how energy gets less through each level because it gets smaller

• is found in Egypt

Poll

I feel ready for my assessment tomorrow!

• Yes

• No

• Kind of..