Which of the following are only in plant cells and not in animal cells?

• A. Gap junctions.
• B. Desmosomes.
• C. Plasmodesmata.
• D. Tight junctions.

Answer: (C)

Verified step by step guidance

1. Understand the function of each structure mentioned: Gap junctions, Desmosomes, Plasmodesmata, and Tight junctions.
2. Gap junctions are channels that allow for communication between animal cells, not found in plant cells.
3. Desmosomes are structures that provide adhesion between animal cells, not found in plant cells.
4. Plasmodesmata are channels that allow for communication and transport between plant cells, not found in animal cells.
5. Tight junctions are connections that prevent leakage between animal cells, not found in plant cells.