Question

question 4
metabolism is defined as ______.
a all the chemical reactions occurring in an organism that support life
b the taking in of nutrients
c the breakdown of substances into simpler forms
d the removal of wastes produced by chemical reactions

Explanation:

Metabolism encompasses all the chemical reactions in an organism that are essential for life - including anabolism (building molecules) and catabolism (breaking down molecules). Option A correctly defines it as all the chemical reactions occurring in an organism that support life. Option B only refers to nutrient - intake which is part of metabolism but not the whole definition. Option C is only catabolism, a sub - component of metabolism. Option D is about waste removal which is also just a part of the overall metabolic processes.

Answer:

A. all the chemical reactions occurring in an organism that support life