Cell wall/Cell Theory

Which is not a part of cell theory?

• All organisms are made of cells
• All existing cells come from preexisting cells
• All matter is composed of living cells
• The cell is the most basic unit of life

Tags

NGSS.MS-LS1-1

Microscopic single-cells that do not have a nucleus or other membrane-bound organelles. 

• DNA
• RNA
• Eukaryotes
• Prokaryotes

The structures that make up a cell are called organs:

• True

• False

Cell wall can be found in plants and animals

• True

• False

The cell wall is not very porous.

• True

• False

it is not a characteristic of a cell wall

• Strong and stiff

• Made of cellulose

• Is made up of 3 or more layers

• Is found only in plants

What is the smallest LIVING unit of LIVING THINGS?

• a cell

• a mitochondria

• a brick

• a protein

Where do cells come from?

• They come from eggs.

• They come from minerals in water.

• They come from other cells.

Tags

NGSS.MS-LS1-1

In PLANT cells, which part is the rigid outer layer that supports and protects the cell?

• cell membrane

• cell wall

• chloroplast

• nucleus

Tags

NGSS.MS-LS1-2

A cell wall...

• is very soft and flexible

• is very rigid, and supports the plant cell, giving it its shape

• is the part that is inside the plant's nucleus