Question

Describe the shortcomings of cell theory.

Answer 1

Cell theory is a biological hypothesis that states that all beings are made up of cells, that cells are the basic structural/organizational unit of all organisms, and that all cells originate from pre-existing cells. It was first proposed in the mid-nineteenth century. Cells are the fundamental building blocks of all creatures, as well as the basic unit of reproduction.

Complete answer:
Magnification technology improved to the point where cells might be discovered as a result of continuous advances to microscopes over time. Robert Hooke is credited with this discovery, which ushered in the scientific study of cells, known as cell biology. When he looked through the scope at a piece of cork, he noticed pores.
The cell hypothesis has three tenets, which are as follows:
One or more cells make up every living entity.
In organisms, the cell is the fundamental unit of structure and organisation.
Pre-existing cells give rise to new cells.
Matthias Schleiden and Theodor Schwann proposed the cell theory. According to this view, all living things are made up of one or more cells, and the cell is the most basic unit of life. The following are some of cell theory's flaws or disadvantages:
Viruses are considered acellular entities or organisms that lack cell machinery, although they are included in this cell theory as organisms.
The mechanics of the celtic knot was unknown to Matthias Schleiden and Theodor Schwann.
The body structure of a few animals is not fully differentiated into cells, despite the presence of multiple nuclei (coenocytes, such as Rhizopus).
Without a proper nucleus, RBCs and sieve tube cells can live and function.
The cell theory does not apply to prokaryotic cells since they lack a well-defined nucleus.

Note:
The following are components of current cell theory that are widely accepted
One or more cells make up all known living entities.
By division, all live cells develop from pre-existing cells.
In all living species, the cell is the basic structural and functional unit.
The cumulative activity of separate cells determines an organism's activity.