Nonselective cation channels open in response to binding of the second messenger cGMP (cGMP-gated channels)

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#Id: 9052

#Unit 4. Cell Communication and Cell Signaling

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#Id: 900

#Unit 13. Methods in Biology

T4 polynucleotide kinase (PNK) Transfers terminal phosphate groups from ATP to 5-OH groups.

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#Id: 3246

#Unit 3. Fundamental Processes

G modification. The figure shows specific sites on guanine that are vulnerable to damage by chemical treatment, such as alkylation or oxidation, and by radiation.

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#Id: 6048

#Unit 10. Ecological Principles

Tropical rain forest

 Rainfall exceeds 230 cm per year, and temperature is hot year-round, averaging 25 to 29C. 

 Tropical rainforests lie in a band around the equator within the tropics of Cancer and Capricorn (23.5° N and S). 

 Soils are commonly shallow and nutrient-poor

There is little seasonal variation in sunlight and temperature

Tropical rainforests are produced 40 per cent of NPP of terrestrial ecosystems.

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#Id: 1168

#Unit 7. System Physiology – Animal

GFR is measured by the clearance of a glomerular marker.