ATP is the chemical substance that is used to power the cellular activities
If I were you I would choose muscles it seems right to me although I might be wrong. Hope this helped some! ;)
The correct answer is: introns
Processing of mRNA is process that occurs only in eukaryotic cells. After the transcription, newly formed mRNA molecule is called and it must be processed into a messenger RNA (mRNA). Processing includes:
• Addition of a 5' cap to the beginning of the RNA
• Polyadenilation- addition of a poly-A tail (tail of A nucleotides) to the end of the RNA
• Splicing- removal of introns and linking the exons
After these steps mRNA is mature and used for the further steps (e.g. translation).
Sometimes some genes are alternatively spliced.
<span>Light energy has to be converted into chemical energy in ATP molecules. Plants change light into sugar molecules and both plants and animals change sugar into ATP molecules, which allows for our survival</span>