Outline the bonding between dna nucleotides. Explain how chemical bonding between water molecules makes water a valuable coolant in living organisms. Describe the movement of water across membranes. State the role of water in photosynthesis.
Answers
1) Outline the bonding between dna nucleotides ?
A) Outline how DNA nucleotides are linked together by covalent bonds into a single strand. Two DNA nucleotides can be linked together by a covalent bond between the sugar of one nucleotide and the phosphate group of another nucleotide. You can add more nucleotide in a similar way to form a strand of nucleotides.
2) Explain how chemical bonding between water molecules makes water a valuable coolant in living organisms.?
A) Hydrogen bonding between molecules makes it a valuable coolant in living organisms. Breaking hydrogen bonds needs energy, and removes heat
3) Describe the movement of water across membranes?
a) The movement of molecules from a region of higher concentration to a region of lower concentration. ... Osmosis The movement of water across a semi permeable membrane. Osmosis is the movement of water (red dots) through a semipermeable membrane to a higher concentration of solutes (blue dots)
4) State the role of water in photosynthesis.?
A) Water splits into oxygen, hydrogen ions, and electrons to replace the lost electrons of photo system II in light-dependent reaction. Also, as hydrogen ions pass through ATP synthase, ATP is formed to use in the light-independent reaction.