Podcast
Questions and Answers
Which unit of measurement represents the energy required to heat a kilogram of water by one degree Celsius?
Which unit of measurement represents the energy required to heat a kilogram of water by one degree Celsius?
- Kilocalorie (correct)
- Joule
- Calorie
- Watt
What do enzymes do to the nutrients consumed through metabolic processes?
What do enzymes do to the nutrients consumed through metabolic processes?
- Send them to the brain
- Convert them into water
- Break them into their perspective categories (correct)
- Store them as fat
What are the three categories that food calories may take the form of?
What are the three categories that food calories may take the form of?
- Enzymes, nucleic acids, and fiber
- Fatty acids, glucose, and amino acids (correct)
- Proteins, carbohydrates, and vitamins
- Lipids, sugars, and minerals
How is the stored energy in fatty acids, glucose, and amino acids released?
How is the stored energy in fatty acids, glucose, and amino acids released?
Where do the molecules of fatty acids, glucose, and amino acids go after being broken down by enzymes?
Where do the molecules of fatty acids, glucose, and amino acids go after being broken down by enzymes?
Which substance can be measured in calories?
Which substance can be measured in calories?
How many calories are in a liter of gasoline?
How many calories are in a liter of gasoline?
What is a calorie also known as?
What is a calorie also known as?
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Study Notes
Energy and Nutrition
- A calorie represents the energy required to heat a kilogram of water by one degree Celsius.
Enzymes and Metabolism
- Enzymes break down the nutrients consumed through metabolic processes.
Forms of Food Energy
- Food calories may take the form of carbohydrates, proteins, or fats.
Energy Release
- The stored energy in fatty acids, glucose, and amino acids is released through cellular respiration.
Broken-Down Molecules
- The molecules of fatty acids, glucose, and amino acids are absorbed by the bloodstream after being broken down by enzymes.
Measuring Energy
- Energy can be measured in calories.
Energy Density
- A liter of gasoline contains approximately 31,000,000 calories.
Calorie Definition
- A calorie is also known as a unit of energy.
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