Bios 1705 lab - Study guides, Class notes & Summaries

How is color of light absorbed versus reflected shown in the absorption spectra experiment? - Answer-- The peaks of absorption for visible light were in the low wavelength range (violet to blue) and high range (red). This makes sense because: o It shows that the pigments (especially the 2 chlorophylls absorbed red and blue best) o Those same 2 colors powered the most photosynthesis in the leaf disc experiment. What colors of light do plants use for photosynthesis? - Answer-Plants use colors...

BIOS 1705: Lab Quiz 1 with Verified Solutions - **What part of the microscope moves the slide around the stage?** - Stage adjustment knobs - **Which lens is closest to the eye when using a microscope?** - Ocular - **What knob should you use to focus at low power only?** - Coarse adjustment knob - **What does the condenser do in a microscope?** - Concentrates the light on the specimen - **If you have a high power objective lens with a magnification of 40x, what would be the ...

arm - use to safely carry the microscope coarse adjustment knob - use to focus at low power ONLY condenser - concentrates the light on the specimen controlled variable - the variable that could impact the outcome of the experiment by does not because it is held constant and not varied; ex) light, temperature, etc dependent variable - what is measured, observed or counts; must be specific and quantitative; ex) heart rate diffusion - movement of particles from an area of high concentration ...

condenser Ans: concentrates the light on the specimen high power objective Ans: 40x ocular Ans: lens nearest to the eye stage adjustment knobs Ans: moves a slide around the stage low power objective Ans: 4x arm Ans: use to safely carry the microscope stage Ans: platform on which the slide is mounted iris diaphragm Ans: controls the amount of light reaching the specimen medium power objective Ans: 10x coarse adjustment knob Ans: use to focus at low power ONLY fine adjustment k...