Which is the basic unit of life?

Which is the basic unit of life?

• A. Organ.
• B. Cell.
• C. Tissue.
• D. Molecule.

Answer: (B)

Life’s smallest working unit is the cell. It can carry out all the essential processes of life—like metabolism, growth, reproduction, and responding to the environment—either on its own (in single-celled organisms) or as part of a larger organism. The cell theory states that all living things are made of cells and that the cell is the basic unit of structure and function. Molecules are just chemical building blocks that come together to form cells, but they aren’t living on their own. Tissues are groups of similar cells working together, and organs are structures made of different tissues performing specific tasks. So, the fundamental unit of life is the cell.

Life’s smallest working unit is the cell. It can carry out all the essential processes of life—like metabolism, growth, reproduction, and responding to the environment—either on its own (in single-celled organisms) or as part of a larger organism. The cell theory states that all living things are made of cells and that the cell is the basic unit of structure and function. Molecules are just chemical building blocks that come together to form cells, but they aren’t living on their own. Tissues are groups of similar cells working together, and organs are structures made of different tissues performing specific tasks. So, the fundamental unit of life is the cell.