I assume you are using conditional formatting.
Select the whole row with the cell in column A as the activecell
Assume the trigger cell is F
for illustration purposed, assume we are working on row 10 and if F10 is
greater than 10, we will change the color of the row
with the row 10 selected and A10 as the activeCell (reverse highlight)
Format=>Conditional Formatting
Change the Cell Value is to Formula is in the first dropdown
in the text box put in the formula
=$F10>10
then click the format button, select the pattern tab, select your highlight
color, then OK out of conditional formatting.
If you want to format several rows this way, just select all the rows and
write the above formula for the row that has the active cell. The row is
relative in the formula, so it would adjust for each of the selected rows.
The column is absolute, so each cell would be formatted according to the
value in that column (F in the example) for the particular row.