Question

which of the following serves as the cells boundary from its environment and controls what goes in and out of the cell? (door)
mitochondria
cell membrane
chloroplast
golgi apparatus
which characteristic is not common to both prokaryotic cells and eukaryotic cells?
genetic material (dna)
cell membrane
cytoplasm
multicellular organisms

Explanation:

• First question:
• Mitochondria are the power - houses of the cell, generating ATP.
• Chloroplasts are involved in photosynthesis in plant cells.
• Golgi apparatus is involved in modifying, sorting, and packaging proteins.
• The cell membrane (plasma membrane) acts as a boundary between the cell and its environment and controls the movement of substances in and out of the cell (selective permeability).
• Second question:
• Both prokaryotic and eukaryotic cells have genetic material (DNA), a cell membrane, and cytoplasm.
• Prokaryotic cells are always unicellular, while eukaryotic cells can be unicellular (e.g., yeast) or multicellular. So, being a multicellular organism is not a common characteristic.

Answer:

• First question: cell membrane
• Second question: multicellular organisms