Cell Structure and Function

What is the main reason for variation in cell shape?

• Environmental factors
• Genetic mutation
• Functional specialization
• Random chance

What is the function of columnar epithelial cells?

• Gas exchange
• Mechanical support
• Absorption and secretion
• Energy storage

What is the function of the biconcave shape of red blood cells?

• Helps in clotting
• Stores more glucose
• Increases surface area for oxygen exchange
• Allows cell division

Which of the following is NOT a basic shape of bacteria?

• Bacillus
• Coccus
• Polygonal
• Spirillum

What is the shape of mesophyll cells in plants?

• Columnar
• Spherical
• Round and oval
• Thread-like