Levels of Organization Science Fair Checkpoint later this week!

Create a Venn diagram PlantsAnimals What are they made up of? How do they get food? How do they reproduce? How do they get rid of wastes? How do they respond and change? Helping Questions: 2 2 2

Matching What are the differences between animals and plants throughout the levels? What are the similarities between animals and plants throughout the levels?

Cells Definition – The basis unit of life composed of mainly water, but also contain other substances that are essential for life Examples: Red blood cell, nerve cell Organelles: Mitochondrion, Nucleus, Chloroplast, Cytoplasm, Vacuole, Cell Wall, Cell Membrane Prokaryotes – genetic material is NOT surrounded by a membrane, most are unicellular Eukaryotes – genetic material IS surrounded by a membrane, contain organelles. Eukaryotic cells are larger than prokaryotic cells

Tissue Definition – groups of similar types of cells that work together to carry out specific tasks Main types in animals: 1.Muscle 2.Connective 3.Nervous 4.Epithelial (skin) Main types in plants: 1.Dermal (prevents water loss) 2.Vascular (transports water) 3.Ground (provides storage & support, site of photosynthesis)

Organs Definition – groups of different tissues working together to perform a particular job. Examples– esophagus, stomach, large intestine, small intestine, rectum, tongue, liver, gallbladder, pancreas, lungs, nose, mouth, bronchi, diaphragm, pharynx, trachea, heart, arteries, veins, skin, brain, spinal cord, peripheral nerves

Organ System Definition – groups of different organs that work together to complete a series of tasks Examples: o Respiratory o Skeletal o Circulatory o Muscular o Digestive o Nervous

Organism Definition – an individual form of life that is capable of growing, taking in nutrients, and usually reproducing (organ systems working together) Unicellular Eukaryotes: o Amoeba o Algae o Athlete’s foot Multicellular Eukaryotes: o Humans o Animals

1. Why do organisms require different levels of cellular organization? 2. What are the 5 levels of organization? 3. Do unicellular organisms have levels of organization? Explain your answer.

Complete the worksheet Cells R Us