the answer is B. ribosomes make protien
Answer:
a) As I remember "the atomic spectra" of bohr
1- Existence of a positively charged nuclei in the centre of the atom
2- Number of negatively charged electrons = number of positive charges ported by the atom.
3- Electrons navigate in fixed energy levels , with a high speed without gain or loose energy
4- centrifugal force is in equilibrium with attraction force.
5- The empty space between energy levels is forbidden for electrons.
Electrode potential is concentration dependent as it is composed of two half-cells with same electrodes but different concentrations. One acting to dilute a more concentrated solution, while the other concentrates a more diluted solution — which then creates a voltage that is in equilibrium. This why we need both positive and negative sides of a battery as a power source and make something work.
If the ion is a cation, it has a positive charge because it LOST electrons. If its an anion, then it has a negative electron because it GAINED electrons.
