Science Act: Cell Biology

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

• cell

• molecule

• tissue

• organ

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Which organelle is known as the powerhouse of the cell?

• Mitochondria

• Endoplasmic reticulum

• Ribosomes

• Golgi apparatus

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What is the process by which cells replicate their DNA?

• DNA replication

• Cell division

• Protein synthesis

• RNA replication

What is the function of the cell membrane?

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

• Stores genetic information

• Regulates body temperature

• Helps in photosynthesis

What is the role of ribosomes in a cell?

• Protein synthesis

• Waste removal

• Cell division

• Energy production

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What is the difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells are larger in size compared to eukaryotic cells.

• Prokaryotic cells are only found in multicellular organisms, while eukaryotic cells are found in unicellular organisms.

• Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles.

• Prokaryotic cells have a nucleus and membrane-bound organelles, while eukaryotic cells do not.

What is the function of the nucleus in a cell?

• Control center and genetic material storage

• Energy production and waste elimination

• Protein synthesis and enzyme activation

• Cell division and growth regulation

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What are the main differences between plant and animal cells?

• Plant cells have centrioles, lysosomes, and cilia or flagella.

• Plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells have centrioles, lysosomes, and cilia or flagella.

• Plant cells have a nucleus, mitochondria, and endoplasmic reticulum.

• Animal cells have a cell wall, chloroplasts, and a large central vacuole.

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What is the purpose of the endoplasmic reticulum in a cell?

• Cell division and replication

• Protein and lipid synthesis, and molecule transportation

• Energy production and storage

• Waste elimination and detoxification

How do cells communicate with each other?

• Visual cues

• Sound waves

• Electrical signals

• Chemical signals