Question

1. what organelle gives structure to plant cells?
2. where is the dna in a cell found?

Explanation:

Question 3

Plant cells have a cell wall (a rigid structure outside the cell membrane) and the cytoskeleton inside, but the cell wall is the main organelle (or structure, though cell wall is a structure but often considered in organelle - related discussions for plant cell structure) that gives them definite shape and structure. The cell wall is made of cellulose and provides structural support, protection, and helps maintain the cell's shape.

In eukaryotic cells (like animal and plant cells), most of the DNA is found in the nucleus, organized as chromosomes. Additionally, in eukaryotic cells, mitochondria and chloroplasts (in plant cells) also contain their own circular DNA (due to endosymbiotic theory). In prokaryotic cells (like bacteria), the DNA is found in the nucleoid region (a region in the cytoplasm, not a membrane - bound organelle) and also in plasmids (small circular DNA molecules in the cytoplasm).

Answer:

The cell wall (and also the cytoskeleton, but the cell wall is the key structure for plant cell external structure) gives structure to plant cells.

Question 4