Consider the following two statements:I. Cellular organization of the body is the defining feature of life forms.II. Metabolic reactions cannot be demonstrated outside the body in cell-free systems.1. Both I and II are true and II explains I2. Both I and II are true but II does not explain I3. I is true but II is false4. Both I and II are false
Question
Consider the following two statements:I. Cellular organization of the body is the defining feature of life forms.II. Metabolic reactions cannot be demonstrated outside the body in cell-free systems.1. Both I and II are true and II explains I2. Both I and II are true but II does not explain I3. I is true but II is false4. Both I and II are false
Solution
The correct answer is 3. I is true but II is false.
Explanation:
I. Cellular organization of the body is the defining feature of life forms. This statement is true. All living organisms are composed of cells, which are the basic units of life.
II. Metabolic reactions cannot be demonstrated outside the body in cell-free systems. This statement is false. Metabolic reactions can indeed be demonstrated outside the body in cell-free systems. This is a common practice in biochemical and molecular biology research. For example, enzymes, which catalyze metabolic reactions, can be isolated and their activity can be studied in vitro (outside the body).
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