Top answers


Why do you think species have evolved to use ATP rather than GTP?

First of all, the difference between them is that ATP contains the base adenosine and GTP contains guanosine. One of the significant differences between these molecules is that guanosine contains an extra ox...
BW
2664 Views

Why does iodine have a higher boiling point than chlorine?

Iodine is a larger molecule, with more electrons, than chlorine. Therefore Iodine has stronger intermolecular forces than chlorine, which require more energy to break. This results in Iodine having a higher ...
BW
Answered by Ben W. Chemistry tutor
35714 Views

What is the role of oxygen in the electron transport chain, and why is it so essential?

Oxygen acts as the final electron acceptor in the electron transfer chain, resulting in the formation of H 2 O. This is essential because without it, the electron transfer chain cannot function resulting in ...
BW
Answered by Ben W. Biology tutor
78869 Views

Describe the key features of an exchange surface

exchange surfaces require a small diffusion distance enabling the fast exchange of compounds, good blood supply to maintain a concentration gradient. This allows for the most efficient diffusion
ZS
Answered by Zoe S. Biology tutor
3549 Views

Explain covalent bonding and give an example of a simple covalent molecule.

A covalent bond is a shared pair of electrons between 2 atoms.An example of a simple covalent molecule is CH 4 (methane)
ZS
Answered by Zoe S. Chemistry tutor
3169 Views