Question

which of the following best compares the membranes found in different types of cells?
animal cells have cell membranes and cell walls, but plant cells do not have cell membranes.
animal cells have membrane - bound organelles, while plant cells carry out the functions necessary for life in the cytoplasm.
prokaryotes and eukaryotes both have cell membranes, but eukaryotes also have membrane found organelles
prokaryotes have only cell membranes, while eukaryotes have both cell walls and cell membranes

Explanation:

• Option 1: Animal cells have cell membranes, not cell walls. Plant cells have both cell membranes and cell walls. So this option is incorrect.
• Option 2: Both animal and plant cells (which are eukaryotes) have membrane - bound organelles. Plant cells do not carry out all life functions just in the cytoplasm. So this option is incorrect.
• Option 3: Prokaryotes (like bacteria) have a cell membrane. Eukaryotes (such as animal, plant, fungi, and protist cells) have a cell membrane and also membrane - bound organelles (e.g., mitochondria, endoplasmic reticulum). This option is correct.
• Option 4: Prokaryotes can have cell walls (e.g., bacteria have peptidoglycan cell walls). Eukaryotes like animal cells do not have cell walls (plant cells have cell walls). So this option is incorrect.

Answer:

C. Prokaryotes and eukaryotes both have cell membranes, but eukaryotes also have membrane - bound organelles