Interstitial fluid is located in the spaces surrounding the kidney tubule and is denoted as option C.
<h3>What is Interstitial fluid?</h3>
This refers to an extracellular fluid which is present within the tissue spaces of different parts of the body and older ones are usually replaced after some time.
It is important in the supply of oxygen and nutrients to the cells of the body and remove waste materials thereby ensuring optimal functioning.
In the case of a kidney, this fluid is present in the spaces surrounding the kidney tubule which facilitates the exchange of nutrients and wastes which are expelled from the body.
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If you add the amount of protons with the amount of neutrons, you get the atomic mass. Sodium has 11 protons, and 12 neutrons. 11+12=23
Question 1:
Exons are gene fragments whose DNA sequence after transcription is found in mature mRNAs. This part of the gene is most often coding.
The size of the exons in the genomes follows a log-normal distribution, with an average length of about 150 nucleotides, knowing that in eukaryotes, each gene contains several exons and introns (an average of 8) so the size is 8*150 = 1200 bp.
Question 2:
Introns are fragment of a gene located between two exons. Introns are present in immature mRNA and absent in mature mRNA. "Non-coding" fragment of the gene.
The introns average in a gene is 3365 bp including 3'UTR and 5'UTR and intermediate introns.
