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Multicellular Organisms. Section 2.1-4. Specialized cells. Cells that perform a specific function Blood cell carries oxygen Nerve cell sends and receives signals. Plants. Producers – make their own food Autotrophs – self feeder Photosynthesis – captures sunlight and - PowerPoint PPT Presentation
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Multicellular Organisms
Section 2.1-4
Specialized cells
• Cells that perform a specific function– Blood cell carries oxygen
– Nerve cell sends and receives signals
Plants
• Producers – make their own food• Autotrophs – self feeder• Photosynthesis – captures sunlight and
converts to chemical energy• Chemical energy (food) is often stored in
the form of starch
H2O + CO2 C6H12O6 + O2
Animals
• Consumers – need to get energy from other organisms
predator – hunts other animalsprey – hunted by others for food
Animals
• Heterotroph – feeds on or eats other organisms
– Herbivores – feed on plants or algae– Carnivores – feed on other animals– Omnivores – feed on plants and animals
Fungi
• Most are decomposers– Break down complex carbon compounds that are
part of living matter and leave simpler compounds behind
• Most are multicellular (yeast is not)
Fungi
• Do not have tissues or organs• Made of a reproductive body and hyphae– A network of threadlike cells
• The cap of a mushroom produces spores• Can be divided into mushrooms, molds or
yeasts