Biology Visual Do Nows
As review for the End of Course assessment, all Do Nows (Warm Ups) for Quarter 3 will be a visual analysis of an image, graph, chart, etc. Students are to examine the graphic provided to them, identify the content, and then write as much as they can/know in the five minutes allotted. Students may write beyond the graphic as long as they explain the connection they have made.
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Flower Do Now
A - Stigma, B - Anther, C - Petal, D - Sepal, E - Ovary, F - Stem, G - Ovules, H - Filament *Not Labeled - Style The flower is the reproductive structure of a plant (although some plants have cones). The female system is called the pistil and includes the stigma, style, and ovary (ovules) while the male system is called the stamen and includes the anther and filament. The ovary contains the female gametes (eggs) while the anther produces the male gametes (pollen, sperm). Pollinators such as wind, water, and some animals help the sperm travel from the anther to the stigma where pollination takes place. Then, the pollen travels down the style to the ovary where fertilization takes place. The ovary eventually becomes the fruit while the ovules become the seed. Macromolecule Do Now
The four macromolecules are the building blocks of life and help all living organisms function.
Enzymes Do Now
Enzymes (type of protein) are biological catalysts meaning they lower the activation energy of a reaction making it faster and more efficient. On the graph, Reaction B does not have an enzyme which is why it has a higher activation energy. Reaction C does have an enzyme which is why it has a lower activation energy. If you add more substrate or more enzyme the reaction rate will increase and then level off. All enzymes operate at an optimal pH and temperature (which is different for each one). If the pH and temperature changes, the enzyme can denature or change shape. Because enzymes are a lock and key model meaning that they only bind to a particular substrate and shape matters, if a enzyme denatures, it stops working. Onion Cell Mitosis
Which phase is each cell in? 1 - Metaphase, 2 - Prophase, 3 - Telophase, 4 - Interphase, 5 - Interphase, 6 - Interphase, 7 - Anaphase, 8 - Interphase, 9 - Telophase, 10 - Metaphase, 11 - Interphase, 12 - Interphase, 13 - Interphase, 14 - Interphase, 15 - Prophase, 16 - Interphase, 17 - Metaphase, 18 - Anaphase, 19 - Interphase, 20 - Interphase, 21 - Prophase, 22 - Interphase |
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Cell Membrane Do Now
Every cell has a cell membrane. The cell membrane protects the cell and regulates what goes in and out. The cell membrane has four parts: carbohydrate chains (identify the cell), cholesterol (structural support), protein channel (allows some materials to cross the membrane), and the phospholipid bi-layer that is responsible for the cell membrane's unique features. Materials can cross the membrane in two ways: active transport which requires energy and moves materials from low to high and passive transport which does not require energy and moves materials from high to low. |
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Water Cycle Do Now
The water cycle is powered by the sun. Water is heated and evaporates to form water vapor (gas). In addition, plants release water vapor into the air (transpiration). The water vapor condenses to form clouds. Then, the water returns to earth's surface as a liquid or solid form of precipitation. When it reaches the surface of the earth it is either absorbed by the ground to become ground water or it runs over the surface of the earth as runoff. |
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Aquatic Ecosystems Do Now
Aquatic ecosystems have a photic zone (where there is light) and an aphotic zone (where there is no light). The most life is found at the top in the photic zone because photosynthetic organisms (which are the basis of the food chain) can be found there. There is the most salt at the bottom. The most oxygen is at the top. The most light is at the top and its darker at the bottom. It is warmer at the top and colder at the bottom. As you go down, pressure increases. |
