Summary 7.1

• classify organism, how they get food
• self feeders - autrotrophs
• photosynthesis - using the sun's energy to make sugar
• producers - make food themselves
• heterotrophs - consumers
• producers/consumers obtain energy from food through cellular respiration
• ATP (adenosine triphosphate) the result of cellular respiration
• photosynthesis and cellular respiration recycle water, CO2, oygen, C6O12H6
• plants and animals both use oxygen for the process
• contiously recycle the materials

Concept Check

1. Autotrophs are organisms that can make their own food. Autotrophs include plants that do not need to consume other things to get their food. Heterotrophs on the other hand, are organisms that aren't able to make their own food like autotrophs. Heterotrophs such as animals and humans have to consume autotrophs or other heterotrophs to get food.

2. Glucose is where plants get their energy from. They use a process called photosynthesis to use sunlight to convert water and CO2 into glucose so they can get the energy that they need.

3. The sun is the main source of energy for photosynthesis that takes place in plants. The plants take in the sun to convert H2O and CO2 into sugar. The heterotrophs eat these plants to take in energy for themselves, which means, that if plants cannot survive, animals would also die out.