22 Questions
What is the primary source of energy for performing biological work in the body?
The energy from the food we eat
What are the three major metabolic destinations for the principle nutrients?
Energy for active processes, synthesized into structural or functional molecules, or synthesized as fat or glycogen
What is the term that refers to all the chemical reactions in the body?
Metabolism
What is the molecule that plays a key role in the transfer of manageable amounts of energy from one molecule to another?
ATP
What is the outcome of oxidation reactions in biological systems?
A decrease in the energy content of the molecule
What is the term that describes the process of transferring hydrogen atoms from one compound to another through coenzymes?
Dehydrogenation
What is the opposite of oxidation?
Addition of electrons to a molecule
What is the primary source of energy for synthesizing ATP in the body?
Glucose
What is the process by which glucose is stored in the liver and skeletal muscles?
Glycogenesis
What is the role of insulin in glucose movement into cells?
Increasing the insertion of Gly-T molecules
How is glucose absorbed in the GI tract?
Secondary active transport
What is the fate of excess glucose when glycogen storage areas are filled up?
It is converted to glycerol and fatty acids
What is the primary function of ATP in biological systems?
To transfer manageable amounts of energy from one molecule to another
Which process involves the removal of electrons from a molecule?
Oxidation
What happens to the liberated hydrogen atoms during oxidation reactions?
They are transferred to another compound by coenzymes
What is the term that describes the breaking down of complex organic molecules?
Catabolism
What is the relationship between catabolism and anabolism?
They are coupled by ATP
What is the energy source for performing biological work?
The food we eat
What is the fate of the energy stored in the bonds of nutrient molecules?
It is transferred to other molecules
What is the role of coenzymes in oxidation reactions?
To transfer hydrogen atoms to another compound
What is the purpose of metabolic reactions in the body?
To maintain energy homeostasis
What is the result of the coupling of catabolism and anabolism?
Energy is transferred from one molecule to another
This quiz covers the metabolic reactions that occur in the body, including the coupling of catabolism and anabolism by ATP. It also explores the different destinations of principle nutrients, such as energy for active processes, structural or functional molecules, and fat or glycogen storage. Test your knowledge of metabolism and nutrient utilization!
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