Cell Test Review 1

What is the function of the nucleus in a cell?

• Cell wall formation

• Energy production

• Waste storage

• Control center of the cell

Name the organelle responsible for producing energy.

• Ribosomes

• Mitochondria

• Nucleus

• Endoplasmic Reticulum

Explain the process of photosynthesis and its importance in the cell.

• Photosynthesis is the process of converting oxygen into carbon dioxide, which is harmful to the cell.

• Photosynthesis is the process of breaking down glucose to release energy, which is not important for the cell.

• Photosynthesis is the process of using water and carbon dioxide to produce nitrogen, which is not needed by the cell.

• Photosynthesis is the process by which plants use sunlight to create food. It is important in the cell as it produces oxygen and glucose, which are essential for the survival of the cell.

What is mitosis and why is it important for growth and repair in multicellular organisms?

• Mitosis is only important for single-celled organisms.

• Mitosis is the process of cell division that allows for growth and repair in multicellular organisms.

• Mitosis is the process of cell death in multicellular organisms.

• Mitosis is a type of photosynthesis in multicellular organisms.

What are TWO examples of passive transport?

• Osmosis

• Exocytosis

• Endocytosis

• Diffusion

Describe the process of diffusion and its role in maintaining cellular balance.

• Diffusion is the movement of particles from an area of high concentration to an area of low concentration. It helps maintain cellular balance by allowing substances like oxygen and nutrients to enter the cell, and waste products to exit.

• Diffusion is the movement of particles from an area of low concentration to an area of high concentration. It only allows harmful substances to enter the cell and prevents essential nutrients from entering.

• Diffusion is the movement of particles from an area of high concentration to an area of low concentration. It has no role in maintaining cellular balance.

What is active transport and how does it differ from passive transport?

• Active transport requires energy and passive transport does not require energy.

• Active transport requires no energy and passive transport requires energy.

Explain the role of the cell membrane in maintaining homeostasis through osmosis.

• The cell membrane only regulates the movement of particles, not water, through osmosis

• The cell membrane has no role in maintaining homeostasis through osmosis

• The cell membrane regulates the movement of water through osmosis to maintain the balance of water and solutes inside the cell.

Which of the following statements is not part of the cell theory?

• Cells are the basic unit of structure and function in all living things.
• All cells are produced from other cells.
• Only animal cells are composed of cells.
• All living things are composed of cells.

What will be the total magnification if ocular lens is 10X and objective lens is 4X?

• 4X
• 40X
• 10X
• 100X