(a) What color are the marker lights at the edge of an airport taxiway? (b) Ane
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(a) What color are the marker lights at the edge of an airport taxiway? (b) Ane the wavelengths of this color long or short, relative to the other visible wavelengths? c) Which wavelengths penetrate deepest into water, long or short? d) Make a statement regarding why phycobilin pigments are present in deep-growing red algae. e) What benefit is there to the color of airport taxiway lights for a pilot attempting to taxi during foggy weather? S Why do you suppose the Swedish automobile manufacturer Volvo chose this company name? 9. List hvo reasons why algae are useful and important to life. 10. It's generally accepted that the first life on Earth was unicellular and, while autotrophic, did not ha chlorophyll. Later, multicellular, chlorophyll-bearing organisms evolved. Speculate on ho organisms that lacked chlorophyll might have obtained the ability to use chlorophyll to captu of the sun 78Explanation / Answer
7 a) Taxi lights are blue coloured
b) Short wave length .and luminaire efficiency.
c) Shallow penetration by longer red wave length and deep penetration by short wavelength blue.
d) Phycobillins are light capturing pigments and able to capture red,orange,blue and green colours in algae where chlorophylls fail to absorb lights.
e) Yellow or orange yellow lights are used in foggy conditions where yellow light can pass .
8) VOLVO - in latin means volvere-company chose that name because they wanted a strong and powerful image for their cars.
9) a) Algae provide the bulk of earths oxygen supply by photosynthesis.
b) Algae are used as food,medicine and to combat climate change.
They form the base of the marine food chain.
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