Question 1: Explain the primary function of the nucleus in an animal cell.

Answer: The nucleus controls the cell's activities and contains genetic material (DNA).

Question 2: Describe the role of mitochondria in animal cells.

Answer: Mitochondria produce energy for the cell through cellular respiration.

Question 3: What is the function of the cell membrane in an animal cell?

Answer: The cell membrane controls what enters and exits the cell, acting as a selective barrier.

Question 1: Identify three organelles found in animal cells and briefly describe their functions.

Answer: The nucleus controls the cell's activities, mitochondria produce energy, and the Golgi apparatus packages proteins.

Question 2: Explain how the structure of the cilia in some animal cells relates to their function.

Answer: Cilia are hair-like structures that beat to move substances across the cell surface, aiding in movement or fluid flow.

Question 1: A cell's mitochondria have a surface area of 150 µm². If a mutation causes the surface area to double, what is the new surface area? Show your calculation.

Answer: 300 µm²

Question 2: Describe a safety precaution that should be considered when studying animal cells under a microscope in a laboratory setting.

Answer: Ensure proper handling of glass slides and use of protective equipment to avoid cuts or contamination.

Question 1: A researcher observes that in a certain animal tissue sample, the cells have enlarged lysosomes. What might this indicate about the cell's activity or condition?

Answer: It may indicate increased breakdown of waste materials or cellular damage requiring more lysosomal activity.

Question 2: How does understanding animal cell structures contribute to medical research and treatments?

Answer: Knowledge of cell structures helps in understanding disease mechanisms, developing targeted therapies, and improving diagnostic techniques.