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Why are metabolic pathways considered to always be active?
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Metabolic pathways are always active as they are continuously adapting to stimuli to maintain life processes.
Differentiate between anabolism and catabolism.
Anabolism uses energy to produce new molecules, while catabolism breaks down molecules to generate energy.
In what sequence do the digestive and metabolic processes occur?
Ingestion > Digestion > Absorption > Transportation > Metabolism
What happens to the nutrients after they are absorbed into the bloodstream?
After absorption, nutrients are transported to various parts of the body where they are needed for metabolic processes.
What is the role of transportation in the metabolic process?
Transportation involves moving nutrients to where they are needed in the body after being absorbed.
What does anabolism require and produce?
Anabolism requires energy and produces new molecules.
List two processes involved in waste removal that are fueled by chemical energy.
Breathing and blood circulation are involved in waste removal.
Where does digestion start and continue?
Digestion starts in the mouth and continues in the stomach and small intestine.
Describe the role of ATP in catabolic reactions.
Catabolic reactions produce ATP (adenosine triphosphate), which is used as a source of energy and generates heat as a byproduct.
What are the main functions fueled by the chemical energy from food?
Breathing, blood circulation, body temperature regulation, oxygen delivery, waste removal, and synthesis and repair of tissues.
How does the First Law of Thermodynamics apply to the body?
Energy cannot be created or destroyed; this law applies to how the body uses chemical energy from food.
What are the three main macronutrients that fuel the body?
The three main macronutrients are fats, carbohydrates, and proteins.
What is the significance of absorption in the digestive process?
Absorption is the process by which nutrients enter the bloodstream to be transported throughout the body.
How does the body regulate temperature using chemical energy from food?
The body regulates temperature by using energy from food to generate heat through processes such as ATP production during catabolism.
What is the primary purpose of catabolism?
The primary purpose of catabolism is to break down molecules to generate energy.
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