When neurons are loaded with fura-2, an increase in cytoplasmic fluorescence is expected when the neuron is depolarized. Fura-2 is a calcium indicator dye that is often used to measure changes in intracellular calcium concentration. When neurons are depolarized, there is an influx of calcium into the cell, which results in an increase in fluorescence.
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Explain Cytoplasmic fluorescence?</h3>
Cytoplasmic fluorescence is a type of fluorescence that occurs in the cytoplasm of cells. This fluorescence is caused by the presence of fluorescent molecules in the cytoplasm, which absorb and emit light at specific wavelengths. The most common fluorescent molecule in the cytoplasm is green fluorescent protein (GFP), which emits green light when excited by ultraviolet (UV) light. Cytoplasmic fluorescence is used in many biological applications, including cell imaging, protein localization, and gene expression analysis.
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Answer:
A
Explanation:
Prairies are unique ecosystems dominated by grasses and other non-woody plants called forbes. ... A prairie ecosystem includes all the living components-- plants and animals--and all the nonliving components-- sun, water, fire, soil, and--nutrients.
Answer:
Because that's what they are made of.
A nucleic acid is made up of nucleotides, and nucleotides contain....
- a pentose sugar (carbs)
- nitrogenous base (ATCG)
- phosphate group
Answer:
b
Explanation:
half of the original c-14 isotope remain in the fossil 5730 years after the organisms died. 1/4 of the original isotope will remain 5730 years after that or 11460 years after the organism died.
