Question.5353 - These photos show "watermelon snow" in Antarctica, caused by the species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high altitude year- round snowfields. In both locations, UV light levels tend to be high. PROPOSE an explanation for why the photosynthetic alga appears reddish pink. (hint: carotenoids)
Answer Below:
The reddish-pink coloration of Chlamydomonas nivalis is primarily due to the accumulation of carotenoid pigments, such as astaxanthin, in the cells. C...
The xxxxxxxxxxxx coloration xx Chlamydomonas xxxxxxx is xxxxxxxxx due xx the xxxxxxxxxxxx of xxxxxxxxxx pigments xxxx as xxxxxxxxxxx in xxx cells xxxxxxxxxxx serve xxxxxxx critical xxxxx in xxxxx algae xxxxxxxxxxxx in xxxxx harsh xxxxxxxxxxxx First xxxx act xx a xxxxxxxxxx barrier xxxxxxx high xxxxxx of xxxxxxxxxxx UV xxxxxxxxx which xxx prevalent xx regions xxxx Antarctica xxx high-altitude xxxxxxxxxx These xxxxxxxx absorb xx light xxxxxxxxxx it xxxx damaging xxx cellular xxxxxxxxxx including xxx and xxx photosynthetic xxxxxxxxx Additionally xxxxxxxxxxx help xxxxxxxxx excess xxxxx energy xxxxxxxx the xxxx of xxxxxxxxxxx under xxxxxxx sunlight xxxx function xx especially xxxxxxxxx for xxxxxxxxxxxxxx organisms xxxxxxx to xxxxxxxxx periods xx high xxxxx intensity xxx reddish xxxxxxxxxx also xxx a xxxxxxxxx benefit xx can xxxxxxxxxx to xxxx absorption xxxxxxxx warming xxx surrounding xxxxxxxxxxxxxxxx and xxxxxx in xxxxxxxxx activities xx the xxxxxxx temperatures xxxxx the xxxxx thrive xxxx dual xxxx of xxxxxxxxxxxxxxx and xxxx absorption xxxxx carotenoids xx essential xxxxxxxxxx for xxxxxxxxxxxxx nivalis xx extreme xxxxxxxxxxxx allowing xx to xxxxxxx and xxxxxxxxxxxxxxx effectively xx conditions xxxxx few xxxxx organisms xxx persist
.ico)
.ico)
.ico)
