Cell Structure And Function-Biomolecules Topic
Numerical Shortcuts and Tricks
Numerical 1:
- To calculate the number of mitochondria in a human liver, multiply the average number of mitochondria per cell (100) by the total number of cells in the liver (2 trillion).
- Use scientific notation to express the answer (200 trillion mitochondria).
Numerical 2:
- To determine the molecular weight of a typical protein, multiply the molecular weight of an average amino acid (110 g/mol) by the number of amino acids in a typical protein (500).
- The answer is expressed in grams per mole (55,000 g/mol).
Numerical 3:
- To calculate the number of nucleotides in the human genome, divide the total length of human DNA (2 meters or 2 x 10^9 nanometers) by the distance between two adjacent nucleotides (0.34 nanometers per nucleotide).
- Use scientific notation to represent the answer (5.9 x 10^9 nucleotides).
Numerical 4:
- To determine the number of nucleotides in a specific RNA molecule, divide its molecular weight (1.5 million g/mol) by the average molecular weight of a nucleotide (330 g/mol).
- The result represents the total number of nucleotides in the RNA molecule (4545 nucleotides).
