One gram of carbohydrate contains 4 calories. The correct option is D.
Carbohydrates are macromolecules that are made up of biomolecules. These biomolecules are carbon, hydrogen, and oxygen. Carbohydrates are the main source of energy.
Energy is measured in calories. Calories in nutrition relate to the energy that humans obtain from the food and liquids they consume, as well as the energy they expend when engaging in physical activity.
4 calories per gram are provided by carbohydrates, 4 calories by protein, and 9 calories by fat. On food packages, this information is present at the bottom or back of the package of the food material. So the calories in one molecule of carbohydrate are 4, but carbohydrates are made up of many monomers or units.
Thus, the correct option is D. 4.
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Answer:
The ability to bend without breaking any bones is called flexibility (c).
Explanation:
Flexibility refers to the range of motion of a joint or group of joints. In the case of Maria, as a ballet dancer, her ability to move her body into complex positions without breaking any bones demonstrates her flexibility.
c. vascular system
d. cortex