Question

1. list the structure(s) that form the boundary between the inside and the outside of each cell in model 2.
2. what is different about the outermost boundary in a plant cell compared to an animal cell?
3. decide as a group whether the cells in model 1 or 2 are more complex and list at least three supporting reasons for your choice.

stop
model 3 - structural comparisons
word part meaning
pro before
karyon nucleus or kernel
eu true

1. use the chart in model 3 to determine the meaning of the word prokaryote.
2. what does the word eukaryote mean?
3. based on the above word definitions, label the cells in model 1 and model 2 as prokaryotic or eukaryotic.
4. by comparing model 1 and model 2, what structures are the same in both prokaryotic and eukaryotic cells?
5. what differences are there between a prokaryotic and eukaryotic cell?

Explanation:

1. The cell - membrane forms the boundary between the inside and outside of each cell.
2. The outermost boundary of a plant cell is the cell - wall in addition to the cell - membrane, while an animal cell has only a cell - membrane as its outermost boundary.
3. Eukaryotic cells (assuming one of the models is eukaryotic) are more complex. Reasons: They have a membrane - bound nucleus, more complex organelles like mitochondria and endoplasmic reticulum, and a more elaborate cytoskeleton.
4. "Prokaryote" means "before nucleus" based on the word parts "pro" (before) and "karyon" (nucleus or kernel).
5. "Eukaryote" means "true nucleus" as "eu" means true and "karyon" means nucleus.
6. Without seeing the models, if a cell has a membrane - bound nucleus, it is eukaryotic; if not, it is prokaryotic.
7. Both prokaryotic and eukaryotic cells have cell - membranes, ribosomes, and cytoplasm.
8. Prokaryotic cells lack a membrane - bound nucleus, have simpler organelles (if any), and are generally smaller in size compared to eukaryotic cells which have a nucleus and complex organelles.

Answer:

1. Cell - membrane
2. Plant cells have a cell - wall outside the cell - membrane; animal cells have only a cell - membrane.
3. Eukaryotic cells are more complex. Reasons: Presence of membrane - bound nucleus, complex organelles, elaborate cytoskeleton.
4. Before nucleus
5. True nucleus
6. Cannot be determined without seeing the models (membrane - bound nucleus = eukaryotic; no membrane - bound nucleus = prokaryotic)
7. Cell - membrane, ribosomes, cytoplasm
8. Prokaryotic cells lack a membrane - bound nucleus, have simpler organelles, are smaller.