Atp is a source of free energy that drives unfavorable reactions. which of the processes are coupled to the dephosphorylation of atp?
ion transport with the concentration gradient
the endergonic reaction forming glucose-6-phosphate
reversible isomerization isomerization of glucose-6-phosphate to fructose-6-phosphate during glucose catabolism
de novo (from scratch) anabolism of nucleotides
myosin action during muscle contraction

b,c and d

Explanation:

The following  processes are coupled to the dephosphorylation of ATP

b. the endergonic reaction forming gluco-6-phosphate

c. Myosin action during muscle contraction

d. de novo anabolism of nucleotide

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.