Closely stacked flattened sacs (plants only) is called

Vacuoles
Lysosomes
Golgi apparatus
None of the above

The correct answer is: A. Vacuoles

Vacuoles are membrane-bound sacs that are found in all plant cells. They are the largest organelles in plant cells, and they can occupy up to 90% of the cell’s volume. Vacuoles are filled with a fluid called cell sap, which contains water, salts, sugars, and other dissolved substances.

Vacuoles play a number of important roles in plant cells. They store nutrients, waste products, and pigments. They also help to maintain the cell’s turgor pressure, which is the pressure that pushes against the cell wall. This pressure helps to keep the cell from collapsing.

Lysosomes are small, spherical organelles that are found in all eukaryotic cells. They contain digestive enzymes that break down proteins, carbohydrates, lipids, and nucleic acids. Lysosomes are important for cell recycling and for destroying damaged or unwanted cells.

The Golgi apparatus is a complex organelle that is found in all eukaryotic cells. It is responsible for processing and packaging proteins and lipids. The Golgi apparatus is also involved in the synthesis of lysosomes.

None of the above is the correct answer.