Biology: Cell Structure

What is the basic structural and functional unit of all living organisms?

• organ

• cell

• molecule

• tissue

Which organelle is known as the powerhouse of the cell?

• Ribosomes

• Mitochondria

• Endoplasmic reticulum

• Golgi apparatus

What is the function of the cell membrane?

• Controls the movement of substances in and out of the cell.

• Helps in photosynthesis

• Regulates body temperature

• Stores genetic information

What is the role of the nucleus in a cell?

• Control center of the cell, containing DNA and regulating gene expression.

• Storage of waste materials

• Regulation of cell shape

• Production of energy for the cell

Which organelle is responsible for protein synthesis?

• Golgi apparatus

• Endoplasmic reticulum

• Ribosome

• Mitochondria

What is the function of the endoplasmic reticulum?

• Protein and lipid synthesis, and molecule transportation within the cell

• Energy production and storage

• Waste elimination

• Cell division

What is the difference between rough endoplasmic reticulum and smooth endoplasmic reticulum?

• Rough endoplasmic reticulum lacks ribosomes, while smooth endoplasmic reticulum has ribosomes attached.

• Rough endoplasmic reticulum is involved in lipid synthesis, while smooth endoplasmic reticulum is involved in protein synthesis.

• Rough endoplasmic reticulum has ribosomes attached to its surface, while smooth endoplasmic reticulum lacks ribosomes.

• Rough endoplasmic reticulum is found in plant cells, while smooth endoplasmic reticulum is found in animal cells.

What are the functions of the Golgi apparatus?

• Modifying, sorting, and packaging proteins and lipids

• Storing genetic information

• Generating energy for the cell

• Regulating cell division

What is the function of lysosomes in a cell?

• Lysosomes produce energy for the cell.

• Lysosomes store genetic information in a cell.

• Lysosomes act as the cell's digestive system.

• Lysosomes regulate cell division.

What is the main function of mitochondria?

• Produce energy

• Store genetic information

• Regulate body temperature

• Produce oxygen