I have a worksheet with over 1100 rows, but with data only in every
few rows. The other rows are "empty" (ISBLANK is true). I need a
macro to delete the empty rows.

Using Record Macro, I see that if I select a row and right-click
Delete, the logic is:

Rows("2:2").Select
Selection.Delete shift:=xlUp

So in my ignorance, I tried the following, to no avail:

Dim cell As Range
For Each cell In Range("1:1144")
If cell = "" Then
cell.Rows.Delete shift:=xlUp
End If
Next

So how can I do this?

PS: Also, I forgot how to turn off/on the worksheet update. And if
I need to do this iteratively, as above, I would like to go from the
bottom up so that the shift xlUp is more efficient.

Many thanks.