Cells - Vacuoles

The video explains the role of vacuoles in cells, highlighting their functions in amoebas and plant cells. In amoebas, food vacuoles store consumed plant material, while contractile vacuoles help maintain osmotic balance. In plant cells, the central vacuole occupies a significant portion of the cell, storing water, nutrients, and waste, and maintaining turgor pressure for structural support.

What is the primary function of food vacuoles in amoebas?

• To support the plant's leaves and stems

• To store water for photosynthesis

• To maintain osmotic balance

• To consume plant material through phagocytosis

How does the contractile vacuole help the cell?

• By consuming plant material

• By pumping water out to maintain osmotic balance

• By maintaining internal turgor pressure

• By storing nutrients and wastes

What percentage of a plant cell's volume is typically made up by the central vacuole?

• 70%

• 50%

• 10%

• 30%

Which of the following is NOT a function of the central vacuole in plant cells?

• Maintaining internal turgor pressure

• Pumping water out of the cell

• Holding nutrients and wastes

• Storing water used in photosynthesis

Why is maintaining turgor pressure important for plants?

• To maintain osmotic balance

• To consume plant material

• To store water for photosynthesis

• To support the plant's leaves and stems