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[DOCX File]dixiemiddlescience.weebly.com
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Spinach Leaf. Hole punch. 2 Beakers. 2 Plastic cups. Timer. Light source. Pre lab: The bicarbonate serves as an alternate dissolved source of carbon dioxide for photosynthesis. Do one . prelab. per table! Prepare a 0.2% solution. (This is not very much it is only about 1/8 of a teaspoon of baking soda in 300 ml of water.) Add 1 drop of liquid ...
large leaf spinach

[DOC File]A Measure of Photosynthetic Rate In Spinach Leaf Disks
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1. Using a punch made from a small diameter soda straw, cut 10 leaf disks from young actively growing spinach leaves by supporting the leaf with your index finger while pressing and using a twisting motion of the straw. (A) 2. Remove the plunger from a clean 10-ml …
spinach leaf heart

[DOC File]Lab 5: Photosynthesis Part I: Spinach Leaf Disc Assay
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While still under vacuum remove your finger from the syringe tip. As the vacuum is released, the leaf discs fill with the bicarb buffer. Repeat until all the discs sink in the buffer. Pour the discs into a Petri dish. Part D: Final Set-Up. Now transfer a fixed amount of discs in each beaker (5 or 6).
large leaf spinach

[DOC File]Floating Leaf Disk Assay - ISD 279
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Floating Leaf Disk Lab. Introduction: Photosynthesis is a process that converts light energy into chemical energy. Light from the sun is absorbed by the chloroplasts in the plants leaves. Carbon dioxide (CO2) is absorbed through holes in the leaf. The chloroplasts convert the …
spinach leaf heart

[DOCX File]farkasbiology.weebly.com
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Leaf Disk Lab DIRECTIONS SHEET. Basic Materials needed for lab group of 3-4 students:-Spinach leaves -straws-Large Syringe-.2 % sodium bicarbonate (baking soda) solution-Test tube/small beakers/plastic cup-Light source. Purpose of Experiment: We are using leaf disks as a measure of the rate of photosynthesis. The leaf disks will be submerged in a baking soda solution that will act as a …
large leaf spinach

[DOC File]www.humbleisd.net
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Explain the changes that occurred within the leaf tissue that allowed the leaf disks to rise to the surface. Part B – Inquiry Portion of Spinach Leaf Disk Lab . Experimental Design: As a group, select a factor to alter from the list below or come up with one on your own. Light Intensity Leaf Color pH of solution
spinach leaf heart

[DOCX File]eggersbiologypage.weebly.com
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Explain why the rate at which the spinach leaf disks rise is considered . ... Floating Leaf Disk Photosynthesis Lab. Light is a part of a continuum of electromagnetic radiation, or energy waves. Shorter wavelengths of energy have greater amounts of energy. For example, high-energy ultraviolet rays, with wavelengths of approximately 1 nanometer ...
large leaf spinach

[DOC File]The biology behind the procedure: - School District #308 ...
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But, if we remove the oxygen from the air spaces and replace it with water, the overall density of the leaf disk increases and the disk sinks. As photosynthesis proceeds, oxygen is released into the interior of the leaf which changes the buoyancy--causing the disks to rise. Materials: Water . Plastic syringe (10 cc) Fresh spinach leaves
spinach leaf heart

[DOC File]FLOATING LEAF DISC LAB .k12.sd.us
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FLOATING LEAF DISC LAB In using the "leaf disk assay" lab, has any one had a problem getting the leaf disks to sink? ... I tried spinach last year and it took almost an hour. I used ivy this year and the disks floated in about eleven minutes. Patti: Sounds like you have an experiment on your hands.
large leaf spinach

[DOC File]Part II – Measuring Photosynthetic Rate in Spinach Leaf Disks
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1. Using a punch made from a small diameter soda straw, cut 30 leaf disks from young actively growing spinach leaves by supporting the leaf with your index finger while pressing and using a twisting motion of the straw. (A) 2. Remove the plunger from 3 clean 10-ml syringes. Using the straw, place the 10 disks into the body of each syringe.
spinach leaf heart

Spinach leaf disk lab