A team of scientists have discovered a living ecosystem in a lake that is perman

Question

A team of scientists have discovered a living ecosystem in a lake that is permanently covered by half of mile of ice in Antartica, so no sunlight gets through. However it is possible that there are submerged geothermal features in this subglacial lake that emit low levels of infrared light. You want to isolate a photosynthetic microbe from the lake; choose the best option per category in the design of your culture media and culture conditions. Consider carefully the requirments for photosynthesis.

A)lights-green,red,or infrared

B)carbon-glucose or carbon dioxide

C)electron donor-glucose,water,or nitrate

D)terminal electron acceptor-oxygen,nitrate, or none are required

Explanation / Answer

Producers in the lake ecosystem are mostly submerged or floating phytoplankton, these exhibits different criteria for performing photosynthesis, lakes are max of 8 feet depth, so it not such hard to achieve photosynthesis, but comparably low with terrestrial forms.

Light requires is IR so that it penetrates maximum, it reflect green color so plants and phyoplankton are green in color.

It utilises dissolved form of carbon dioxide as carbon fixation source,

Electron donor is nitrate, nitrite is converted to nitrate this makes loses of electron

Electron acceptor is nitrite form and molecular oxygen.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.