Class 9 - Cell: The Fundamental Unit of Life

Which of the following is the basic structural and functional unit of life?

• Tissue

• Organ

• Cell

• Organ system

Who discovered the cell?

• Anton van Leeuwenhoek

• Robert Hooke

• Rudolf Virchow

• Robert Brown

Which part of the cell contains the genetic material?

• Ribosome

• Cytoplasm

• Nucleus

• Mitochondria

Which of the following organelles is known as the "powerhouse" of the cell?

• Chloroplast

• Endoplasmic reticulum

• Golgi apparatus

• Mitochondria

In which cell organelle does photosynthesis occur?

• Chloroplast

• Mitochondria

• Lysosome

• Nucleus

Which of the following structures is found only in plant cells?

• Cell membrane

• Cell wall

• Cytoplasm

• Nucleus

Which organelle is responsible for protein synthesis?

• Ribosome

• Lysosome

• Vacuole

• Golgi apparatus

What is the function of lysosomes?

• Protein synthesis

• Energy production

• Digestion of waste

• Photosynthesis

Which of these does not have a nucleus?

• Amoeba

• Human cheek cell

• Red blood cell

• Onion cell

Which of the following is found in both plant and animal cells?

• Chloroplast

• Vacuole

• Cell wall

• Plastids