Question

vocabulary
) fill in the blank with the term that best completes
the following sentences.
1 the _ is the smallest
functional and structural unit of all living
things.
2 all cells are surrounded by a(n)
_.
3 a living thing is called a(n)
_.
key concepts
4 describe discuss two ways that all cells
are alike.
_
_
_
_
_
5 list what are the main ideas of the cell
theory?

Explanation:

1. In biology, the cell is defined as the smallest functional and structural unit of all living things.
2. All cells, whether prokaryotic or eukaryotic, are surrounded by a cell membrane (plasma membrane) which controls the movement of substances in and out of the cell.
3. An organism is a living thing, which can be unicellular (like bacteria) or multicellular (like humans).
4. All cells have genetic material (either DNA or RNA, with DNA being the common genetic material in most cells). Also, all cells are surrounded by a cell membrane.
5. The main ideas of the cell theory are: all living organisms are composed of one or more cells; the cell is the basic unit of structure and organization in organisms; cells arise from pre - existing cells.

Answer:

1. cell
2. cell membrane
3. organism
4. All cells have genetic material and are surrounded by a cell membrane.
5. All living organisms are composed of cells; the cell is the basic unit of life; cells come from pre - existing cells.