1) (Question 2-1 from textbook) “A cup of water, containing exactly 18 g, or 1mo
ID: 51031 • Letter: 1
Question
1) (Question 2-1 from textbook) “A cup of water, containing exactly 18 g, or 1mole, of water, was emptied into the Aegean Sea 3000 years ago. What are the chances that the same quantity of water, scooped today from the Pacific Ocean, would include at least one of these ancient water molecules? Assume perfect mixing and an approximate volume for the world’s oceans of 1.5 billion cubic kilometers (1.5 x 10^9 km^3)
2) Many macromolecules, including proteins, are held together by covalent bonds. Why are covalent bonds NOT used for protein-protein interactions? How can non-covalent bonds be “Stronger” than covalent bonds?
Explanation / Answer
2.
macromolecule like protein,carbohydrate,DNA/RNA are polymer of amino acid,glucose and nuclic acid respectivly and protein are polymer of amino acid held eachother by peptide bond .since protein is already polymer so it can not unite to form another polymer only its structure may be change or modified.non covalent bond like ionic bond are stronger than covalent bond due to strong electrostatic force of attraction.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.