Cell Structure and Function

Which organelle helps Amoeba regulate osmotic pressure?

• Mitochondria
• Nucleus
• Lysosome
• Contractile vacuole

What feature allows plant vacuoles to maintain high ion concentrations?

• Low water content
• Absence of membrane
• No ion transport
• Tonoplast transport

What differentiates the cis and trans faces of the Golgi apparatus?

• Color under the microscope
• Size of cisternae
• Type of enzymes present
• Direction of vesicle movement

Which statement about mitochondria is true?

• They are always spherical
• They lack membranes
• They are uniform in size
• Their number depends on the cell’s energy needs

Which organelle is primarily responsible for maintaining turgor pressure in plant cells?

• Mitochondria
• Nucleus
• Ribosome
• Vacuole