Water accounts for most of a cell's mass!
<span>Letter A is the answer. Almost all plant cells have single large central vacuole. These large central vacuoles of the plant cells are filled with water and can take over 80% of its cell volume. This is surrounded by a single membrane called tonoplast. The role of the central vacuole is maintaining the plant cell's pressure.</span>
47) A) <span>Metaphase
48) C) </span><span>manufacturing proteins
49) B) Sperm and Egg cells
Hope this helps!</span>
