16 Questions
What percentage of energy used during ATP production creates heat?
60%
Which of the following is NOT a mode of heat transfer mentioned in the text?
Absorption
What percentage of heat is lost through radiation in a naked human?
60%
Which of the following is NOT a factor contributing to the Basal Metabolic Rate (BMR)?
Digestion
How many calories are equivalent to one pound of fat?
3500 calories
Which of the following vitamins is fat-soluble?
Vitamin E
Which type of reaction involves producing larger molecules using the energy from catabolism?
Anabolic
In carbohydrate metabolism, what happens to pyruvate if oxygen is present?
Enters the Krebs cycle
Which hormone is primarily anabolic in its metabolic effects?
Growth hormone
What is the primary function of the electron transport chain in cellular metabolism?
Generate ATP through oxidative phosphorylation
What is the process of creating glucose in the liver from non-carbohydrate precursors called?
Gluconeogenesis
In lipid metabolism, what role does cholecystokinin (CCK) play?
Suppresses hunger and stimulates enzyme release
What is the primary purpose of ketone bodies in metabolism?
Fuel when glucose availability is low
How are excess amino acids typically dealt with in the body?
'Wasted' as nitrogenous waste
What is the primary metabolic state when the body is digesting and absorbing food, with anabolism exceeding catabolism?
Absorptive state
Why is nitrogen processed through the urea cycle when dealing with excess amino acids?
To remove toxic nitrogen waste from the body
This quiz covers the basics of metabolic reactions, focusing on catabolic reactions that break down molecules to release energy and anabolic reactions that produce larger molecules. Learn about how energy is stored or used based on net energy changes. Explore the role of ATP in energy conversion.
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