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Unformatted text preview: Additional Activities Chapter 1 Activity: The Levels of Life Card Game The Order of Part 1 & 2: Ecosystem Community Population Organism Organ System Organ Tissues Cell Molecule Atom Activity: Energy Flow and Chemical Cycling All living organisms and their surroundings are considered to live in an ecosystem. Animals consume food to acquire chemical energy in the form of organic molecules, called carbohydrates. For animals, energy comes in chemical energy and leaves as chemical energy and heat. During photosynthesis, plants produce carbohydrates. For plants, energy comes in light and leaves as chemical energy and heat. For bacteria, energy comes in light or chemicals and leaves as chemical energy and heat. All organic molecules contain carbon. Essentially, animals get the carbon atoms from the plants they eat. During photosynthesis, plants take carbon in as carbon dioxide gas and leaves as organic molecules (carbohydrates) and carbon dioxide. Animals undergo cellular respiration to convert organic molecules back into carbon dioxide gas. This is again recycled back into the plants.. Decomposers (bacteria and fungi) take carbon in as organic molecules and leaves as carbon dioxide gas. For animals, carbon comes in as organic molecules and leaves as organic molecules and carbon dioxide. Activity: Heritable Information: DNA DNA is represented in a double helix shape with two complementary strands of nucleotides twisted together. In space-filling model the phosphate construct the two sugar-phosphate strands. The strands are connected by the hydrogen-bonded pair of bases of each strand. Adenine always pairs with thymine, and guanine with cytosine. Activity: Comparing Prokaryotic and Eukaryotic Cells 1. Animal Cell is the blue tinted eukaryotic cell. 2. Plant Cell is the orange tinted eukaryotic cell. 3. Bacteria Cell is the orange tinted, column-shaped, prokaryotic cell. 4. Archaea cells are prokaryotic, which bacteria cells are. 5. A prokaryotic cell does not have a nucleus bacteria (archaic) 6. An animal cell does not have a cell wall blue tinted eukaryotic cell 7. A prokaryotic cell doesnt have organelles bacteria (archaic) Activity: Regulation: Negative and Positive Feedback Negative feedback regulates chemical reaction sequences in a cell. If there is an excess of the final product, then the enzyme in the beginning of the sequence is then inhibited. This slows down production and, thus, reduces the end result. Positive feedback increases the end result by accelerating an enzyme to increase the rate of production. Activity: Classification Schemes In the beginning, organisms were either plants or animals. Classification was determined whether the organisms was photosynthetic or not, or if the organism had a cell wall. Later on, a five kingdom classification system was organized. Monera are the simple cells of prokaryotes. The other four kingdoms were eukaryotic: fungi (nom-photosynthetic), protista (the organisms that didnt fit into the other categories), plants, and animals. fungi (nom-photosynthetic), protista (the organisms that didnt fit into the other categories), plants, and animals....
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- Spring '11