In what form is carbohydrate stored in the liver?

Correct option is D

Carbohydrates are stored in the liver as glycogen. Glycogen acts as a reserve energy source, which the body converts back into glucose when needed for maintaining blood sugar levels.
Explanation of Each Option:
• Glucose: The primary energy source, but not the stored form. It is transported in the blood and used by cells for immediate energy. However, excess glucose is converted into glycogen or fat for long-term storage.
• Sucrose: A dietary sugar, not stored in the liver. It is a disaccharide composed of glucose and fructose, commonly found in table sugar. After digestion, it is broken down into its components and used for energy or storage in other forms.
• Galactose: A milk sugar, converted into glucose but not stored. It is metabolized in the liver and transformed into glucose derivatives. Unlike glycogen, galactose does not accumulate in the liver but is used as an energy source after conversion.
• Glycogen: Correct answer; the stored form of carbohydrates in the liver and muscles. It is a branched polysaccharide that serves as an energy reserve. When needed, glycogen is broken down into glucose to maintain blood sugar levels.