Help with biology - cells and such.

Question

1. Bacterial cells are prokaryotic. Select two structures of bacterial cells and briefly describe them; what do they look like, what are they composed of? Then, explain how these two structures allow bacterial cells to survive as unicellular organisms.

2. There are many examples of eukaryotic cells. Algae, Fungi, Plants, and Animals are all composed of eukaryotic cells. Some algae and fungi are unicellular organisms, but other algae and fungi, and all plants and animals are multicellular organisms that are composed of specialized eukaryotic cells that interact to support the life of the multicellular organism.

Answer 1

The cell wall of bacteria often contain a carbohydrate crosslinked with protein called peptidoglycan.  This structure makes the bacterial cell tough and protected from the environment

Bacterial cells also have a cell membrane comprised of phospholipids.  The inner section is hydrophilic and the sides of the membrane facing out from the cell and in toward the cell are hydrophobic.  The cell membrane is selectively permeable.