The Fundamental Unit of Life

What is the fundamental unit of life?

• Atom

• Cell

• Molecule

• Tissue

Who discovered the cell and when?

• Robert Brown in 1831

• Robert Hooke in 1665

• Anton van Leeuwenhoek in 1674

• Theodor Schwann in 1839

What does the cell theory state?

• Cells arise from pre-existing cells

• Cells are the basic structural unit of all living organisms

• All organisms are composed of one or more cells

• All of the above

Which part of the cell is known as the 'powerhouse'?

• Nucleus

• Mitochondria

• Endoplasmic reticulum

• Ribosomes

What is the function of the plasma membrane?

• Provides shape to the cell

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

• Helps in the formation of energy

• Synthesizes proteins

Which of the following is present only in plant cells?

• Mitochondria

• Ribosome

• Chloroplast

• Golgi apparatus

Which organelle is responsible for protein synthesis?

• Ribosomes

• Lysosomes

• Vacuoles

• Centrioles

What is the jelly-like substance present inside the cell called?

• Nucleoplasm

• Cytoplasm

• Chloroplast

• Stroma

Which organelle contains the genetic material of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic reticulum

What is osmosis?

• The movement of water across a semi-permeable membrane

• The movement of molecules from a high concentration to a low concentration

• The splitting of water molecules

• The transport of proteins across the cell membrane