Cell Structure and Function

Which organelles are known for being self-duplicating and have their own DNA?

• Lysosomes and peroxisomes
• Golgi apparatus and ER
• Mitochondria and chloroplasts
• Ribosomes and centrioles

What is the primary function of the nucleus in a eukaryotic cell?

• Site of ATP production
• Site of protein synthesis
• Control center for cellular activities and storage of genetic material
• Storage of waste products

Why are lysosomes referred to as "suicidal bags" in cells?

• They produce energy for cell death
• They transport waste outside the cell
• They synthesize proteins for apoptosis
• They contain enzymes that can digest the cell itself

Which model describes the structure of the cell membrane as a fluid mosaic of proteins and lipids?

• Danielli and Davson model
• Robert Hooke’s model
• Singer and Nicholson’s model
• Schleiden and Schwann model

What distinguishes prophase I of meiosis from prophase of mitosis?

• It is shorter in duration
• It lacks chromosome condensation
• It results in immediate cell division
• It involves synapsis and crossing over of homologous chromosomes