A food chain describes how organisms transfer energy by consuming other organisms. Plants are producers that make their own food through photosynthesis, using raw materials like carbon dioxide, water, and sunlight. Herbivores eat plants, and carnivores eat herbivores and other carnivores, playing the role of consumers in the ecosystem. All cells require energy from food, with plants making their own through photosynthesis and animals obtaining food by consuming other organisms.

1. Food Chain ReviewFood Chain Review

2. Concepts
• What is a food chain?
– Give an example.
• What are the animals that eat other
animals called?
– Predators or Carnivores
• What are the animals that eat plants
called?
– Herbivores

3. • What role do all the organisms that eat
plants and animals play in the
ecosystem?
– Consumers.
• What role do plants play in the
ecosystem?
– Producers.
• What does it mean to be a producer in
an ecosystem?
– Producers make Food.

4. Food and Cells
• All Cells need Energy!
– Energy comes from food
• Plants make their own food
– Phloem delivers food to cells
– Plants use food to grow
• Plants are made out of food
• Animal eats plant ⇒ plant becomes
food for animal

5. Focus Questions
• What is the food produced by plants
made of?
• Where does the matter come from?
• What kinds of raw materials do plants
use to make food?