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In a process called photosynthesis, plants convert light energy, water, and carbon dioxide into oxygen and sugar. They can then use the sugar as an energy source to fuel their growth. Scientists have found an easy way to measure the rate of photosynthesis in plants. The procedure is called the floating leaf disk assay.
In your lab notebook, prepare a data table with three columns. Column 1 is the time, in minutes (min). In columns 2 and 3 you will record the results of your leaf disk assay—the laboratory procedure you are using to investigate photosynthesis—both with baking soda and without baking soda.
7 Νοε 2020 · Cell Biology, Worksheets. by. Shannan Muskopf. bubbles, color, experiment, intensity, lab, light, photosynthesis, rate, virtual. Virtual photosynthesis lab, students manipulate the light intensity, light color, and distance from the light source. and measure the rate of photosynthesis.
12 Ιουλ 2023 · Powered by the sun’s energy, leaves take in water and carbon dioxide and produce oxygen and glucose through photosynthesis. Leaves have specialized cells on their surfaces called guard cells which surround openings called stomata (singular = stoma).
21 Σεπ 2020 · Observing the effects of photosynthesis in order to measure the relative rates of photosynthesis, simulating AP Biology Investigation #5. This is affectionately known as the floating leaf disk lab!
11 Ιουλ 2023 · To measure the rate of photosynthesis, you will replace the air in the spongy mesophyll in your leaf disks with a liquid. This will cause the leaf disks to sink. Then you will put these leaf disks in water with dissolved CO 2 and measure the amount of time it takes for the leaf disks to float.
11 Ιουλ 2023 · They compare the rate of net photosynthesis in water vs. a solution of sodium bicarbonate. The questions guide students in reviewing the relevant biology and interpreting their results. This section will probably require one 45-50 minute lab period.
