Which of the following statements is incorrect?

The correct answer is: properties of cellular organelles are present in the molecular constituents of the organelles.

Let us analyze each statement step-by-step to understand why this statement is incorrect and why the other options are correct:

1. Metabolism in living organisms:
All plants, animals, fungi, and microorganisms exhibit metabolism. Metabolism is the sum total of all chemical reactions occurring in a living body. Since no non-living object exhibits metabolism, it is a defining feature of all living organisms. Therefore, this statement is correct.

2. Properties of cell organelles:
The properties of cellular organelles are not present in their molecular constituents. Instead, these properties arise as a result of interactions among the molecular components that make up the organelle. For example, the cell membrane is composed of lipids and proteins, but the property of selective permeability is a result of the specific interaction and organization of these molecules, not a property of individual lipid or protein molecules alone. Therefore, the statement "properties of cellular organelles are present in the molecular constituents of the organelles" is incorrect, while the statement "interactions among the molecular components of the organelles result into the properties of cell organelles" is correct.

3. Cellular organisation:
Cellular organisation of the body is the defining feature of life forms because all living organisms are made up of cells, and life functions are carried out at the cellular level. Therefore, this statement is correct.

Based on this analysis, the incorrect statement is indeed: "properties of cellular organelles are present in the molecular constituents of the organelles".