Grade 7 Science Quiz

Which of the following is NOT a cell structure?

• Cell wall
• Cell membrane
• Nucleus
• Mitochondria

What is the main function of the cell membrane?

• To provide support and protection
• To control the movement of materials in and out of the cell
• To store genetic information
• To produce energy

Which organelle is responsible for protein synthesis?

• Ribosomes
• Golgi apparatus
• Lysosomes
• Vacuoles

What is the main function of mitochondria?

• To produce energy
• To store water and nutrients
• To digest waste materials
• To control cell division

Which of the following is a characteristic of plant cells?

• Ribosomes
• Golgi apparatus
• Chloroplasts
• Mitochondria

What is a specialized cell?

• A cell that can perform multiple functions
• A cell that has a specific structure and function
• A cell that is found in plants only
• A cell that is larger than other cells

Which of the following is an example of a specialized cell?

• Red blood cell
• Root hair cell
• Nerve cell
• All of the above

Which of the following is an example of passive transport?

• Protein pumps
• Endocytosis
• Diffusion
• Exocytosis

What is the main difference between diffusion and osmosis?

• Diffusion requires energy, while osmosis does not
• Diffusion is the movement of water, while osmosis is the movement of solutes
• Diffusion occurs only in plant cells, while osmosis occurs in animal cells
• Diffusion occurs from high concentration to low concentration, while osmosis occurs from low concentration to high concentration

Which of the following is an example of active transport?

• Facilitated diffusion
• Osmosis
• Endocytosis
• Diffusion