Question 1: Which of the following is the control center of the cell?

Answer: Nucleus

Question 2: True or False: All cells have a cell wall.

Answer: False

Question 3: Describe the function of the mitochondria in a cell.

Answer: The mitochondria are the powerhouses of the cell, providing energy through respiration.

Question 4: Match the following cell components to their functions:

Answer: See full answer key

Question 5: Order the following stages of mitosis: prophase, metaphase, anaphase, telophase.

Answer: See full answer key

Question 6: Fill in the blank: The _____ is responsible for storing genetic information.

Answer: nucleus

Question 7: State the main difference between prokaryotic and eukaryotic cells.

Answer: Eukaryotic cells have a nucleus, while prokaryotic cells do not.

Question 8: Calculate the surface area to volume ratio of a cube-shaped cell with a side length of 2 micrometers. Use the formula: Surface Area = 6a^2, Volume = a^3.

Answer: Surface Area = 24 μm², Volume = 8 μm³, Ratio = 3:1

Question 9: Explain the process of osmosis and its importance to cells.

Answer: Osmosis is the movement of water across a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration. It is crucial for maintaining cell turgor, nutrient absorption, and waste removal.

Question 10: True or False: Animal cells contain chloroplasts.

Answer: False

Question 11: Identify the role of the cell wall in plant cells.

Answer: The cell wall provides structure and protection to plant cells.

Question 12: Discuss how the structure of the cell membrane facilitates its function.

Answer: The cell membrane is composed of a phospholipid bilayer with embedded proteins. Its fluid nature allows flexibility and the proteins control the entry and exit of substances, maintaining homeostasis.

Question 13: What is the primary function of the lysosomes in animal cells?

Answer: Lysosomes break down waste materials and cellular debris.