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Question
In the second reaction shown here (cellular respiration), which of these descriptions compares the products and reactants?
Responses
A The process produces ADP as a product, which has a lower energy level compared to the reactants.The process produces ADP as a product, which has a lower energy level compared to the reactants.
B The process produces inorganic molecules only, which have a lower energy level compared to the products.The process produces inorganic molecules only, which have a lower energy level compared to the products.
C The process produces ATP as a product, which provides a greater cellular energy compared to the reactants.The process produces ATP as a product, which provides a greater cellular energy compared to the reactants.
D The process produces heat energy as a byproduct, which causes the reactants to be less energetic compared to the products.The process produces heat energy as a byproduct, which causes the reactants to be less energetic compared to the products.
C The process produces ATP as a product, which provides greater cellular energy compared to the reactants.
The correct response is:
C The process produces ATP as a product, which provides a greater cellular energy compared to the reactants.
To determine the correct description that compares the products and reactants in the second reaction of cellular respiration, we need to understand the process of cellular respiration.
Cellular respiration is a metabolic process that occurs in the cells of living organisms, converting glucose (a reactant) and oxygen (another reactant) into carbon dioxide and water (products). This process generates energy in the form of adenosine triphosphate (ATP).
Let's examine each response:
A) The process produces ADP as a product, which has a lower energy level compared to the reactants.
This description is incorrect because ADP (adenosine diphosphate) is not a product of cellular respiration. ATP is the product that provides energy for cellular activities.
B) The process produces inorganic molecules only, which have a lower energy level compared to the products.
This description is incorrect because cellular respiration does not produce only inorganic molecules. It primarily produces carbon dioxide and water as byproducts.
C) The process produces ATP as a product, which provides greater cellular energy compared to the reactants.
This description is correct. ATP is produced as a product during cellular respiration, and it provides greater cellular energy compared to the reactants (glucose and oxygen). ATP is often referred to as the "energetic currency" of the cell because it stores and releases energy for various cellular processes.
D) The process produces heat energy as a byproduct, which causes the reactants to be less energetic compared to the products.
This description is incorrect. While it is true that some heat energy is released during cellular respiration as a byproduct, it does not cause the reactants (glucose and oxygen) to be less energetic compared to the products (carbon dioxide, water, and ATP).
Therefore, the correct description that compares the products and reactants in the second reaction of cellular respiration is:
C) The process produces ATP as a product, which provides greater cellular energy compared to the reactants.