Question

what are the functions of cell walls in plants and bacteria? a. provide rigid support and protect the cell from bursting. b. form a boundary outside the cell membrane that prevents water from entering or exiting the cell. c. isolate the dna in a central area of the cell. d. form a scaffold that contains pigments and enzymes for the reactions of photosynthesis. based on observations made in this lab, the size of prokaryotic cells is compared to the size of eukaryotic cells. a. about the same b. smaller c. larger

Explanation:

1. For the first question, the cell - wall in plants and bacteria provides rigid support and protects the cell from bursting due to osmotic pressure. It does not prevent water from entering or exiting (B is wrong), does not isolate DNA (C is wrong), and is not related to the scaffold for photosynthesis (D is wrong).
2. For the second question, prokaryotic cells are generally smaller than eukaryotic cells. Prokaryotic cells lack membrane - bound organelles and a complex internal structure which contribute to the larger size of eukaryotic cells.

Answer:

1. A. Provide rigid support and protect the cell from bursting.
2. B. smaller