I just answered my own question.......
All that is needed is to send the query statement with the UPDATE syntax.
$sqlconnection = mysql_connect "$system", "$user", "$dbpass");
mysql_select_db("$database", $sqlconnection);
$update = "UPDATE tablename SET col1='F' WHERE id=$id";
if (mysql_query($update, $sqlconnection)) {
print ("<h3>It has been removed:</h3>\n");
} else {
print ("<h3>It was NOT removed:</h3>\n");
}