Photosynthesis lab - summarize PDF

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Maria Maurant BIOL 1500 Sarah Koerner October 30th, 2018

Photosynthesis Lab

Time (m) 0 5 10 15

unboiled/dark 189.5 125.5 134.7 135.1

unboiled/light 150.4 224.1 247.4 254.1

boiled/light 275.3 282.4 288.8 290.1

no chloroplast 212.8 216.3 217.5 218

Figure 1: Photosynthesis rate vs. time 350 300 0 5 10 15

250 Rate

200 150 100 50 0 unboiled/dark

unboiled/light

boiled/light

no chloroplast

In Figure 1, the states in which the substances were exposed to are shown and the times as well. There is a constant line throughout and only time 0 is the one affected the most which makes sense due to the substance not being exposed yet.

Group 4 time (m) 0 5 10 15

unboiled/dark 20 21.1 24.8 24.4

unboiled/light 23.2 52.9 69.7 70.5

boiled/light 47.6 53.7 59 59.8

no chloroplast 32.1 32.3 32.3 32.3

Figure 2: Rate vs. Time 80 70 60

0 5 10 15

50 40 30 20 10 0 unboiled/dark

unboiled/light

boiled/light

no chloroplast

In Figure 2, the data of my group is shown. It shows how in regards of time the rate increases. The only one that had no chance was the one with no chloroplast in it, which makes sense because there was nothing for it to react.

Wavelength on O2 Production - # of leaves floating Dark box White Blue Red

0 5 0 5

Green

0

Figure 3: Average-Wavelength on O2 Production - # of leaves floating 6 5

Tim e

4 3 2 1 0 Dark box

White

Blue

Red

Green

In Figure 3, the averages of wavelength on 02 production are showed, with this, there were only two averages that had a value, in this case it was white and red, when the dark box and the green one stayed at 0, this could be because of the lack of oxygen.

Discussion:

In this Photosynthesis lab we measured the transmittance of DPIP for part 1 and the number of leaves floating under various wavelengths for part 2. In part 1, the objective was to quantify photosynthesis with DPIP reduction. The variables were Transmittance, Time, and condition. The results all made sense. For part 2 the objective was to study relationships between wavelength and photosynthesis. Our variables were the leaves floating, wavelength, and time. The results were vey similar besides for the no oxygen and the green light which stayed at 0. The blue and red light remained at 5 throughout.

Works Cited Wang,LiWei ,etal .“ [ Effect sofDi ffer entPr opor t i onsofRedandBl ueLi ghtont he Gr owt handPhot osy nt hes i sofTomat oSeedl i ngs] . ”Yi ngYongShengTai XueBao=The J our nalOfAppl i edEcol ogy,v ol .28,no.5,May2017,pp.1595–1602.EBSCOhost , doi : 10. 13287/ j . 10019332. 201705. 010....