APHY 102 Chapter 18 Nutrition and
Metabolism A-Graded questions and
correct answers 2026
List several common sources of carbohydrates. - CORRECT ANSWERPolysaccharides
(complex sugars): Plant foods, meats
Dissacharides (double sugars): Milk sugar, cane sugar, beet sugar, molasses
Monosaccharides (simple sugars): Fruits and honey
Explain what happens to excess glucose in the body. - CORRECT ANSWER-Excess
glucose is polymerized to form glycogen, which is stored in the liver and muscles as a
reserve. The body can only store so much, so once this limit is hit the remaining glucose
forms fat and is stored in adipose tissue.
Name two uses of carbohydrates other than supplying energy. - CORRECT ANSWER1.
Carbohydrates can be used as the starting materials for synthesizing biochemicals,
such as ribose and deoxyribose.
2. Lactose (milk sugar) is synthesized when the breasts are actively secreting milk.
Why do daily requirements for carbohydrates vary from person to person? - CORRECT
ANSWER-Physically active individuals needs more carbohydrates than sedentary
individuals because they have a higher metabolism, therefore requiring more energy.
Which foods commonly supply lipids? - CORRECT ANSWER-Lipids are typically found
in foods of animal origin, such as lard, dairy, meats, and eggs. It can also be found in
palm and coconut oil.
Which fatty acids are essential nutrients? - CORRECT ANSWER-Essential fatty acids
include linoleic (synthesizes phospholipids) and linolenic.
What is the role of the liver in the use of lipids? - CORRECT ANSWER-
What are the functions of cholesterol? - CORRECT ANSWER-
How do cells use proteins? - CORRECT ANSWER-
Which foods are rich sources of protein? - CORRECT ANSWER-
Metabolism A-Graded questions and
correct answers 2026
List several common sources of carbohydrates. - CORRECT ANSWERPolysaccharides
(complex sugars): Plant foods, meats
Dissacharides (double sugars): Milk sugar, cane sugar, beet sugar, molasses
Monosaccharides (simple sugars): Fruits and honey
Explain what happens to excess glucose in the body. - CORRECT ANSWER-Excess
glucose is polymerized to form glycogen, which is stored in the liver and muscles as a
reserve. The body can only store so much, so once this limit is hit the remaining glucose
forms fat and is stored in adipose tissue.
Name two uses of carbohydrates other than supplying energy. - CORRECT ANSWER1.
Carbohydrates can be used as the starting materials for synthesizing biochemicals,
such as ribose and deoxyribose.
2. Lactose (milk sugar) is synthesized when the breasts are actively secreting milk.
Why do daily requirements for carbohydrates vary from person to person? - CORRECT
ANSWER-Physically active individuals needs more carbohydrates than sedentary
individuals because they have a higher metabolism, therefore requiring more energy.
Which foods commonly supply lipids? - CORRECT ANSWER-Lipids are typically found
in foods of animal origin, such as lard, dairy, meats, and eggs. It can also be found in
palm and coconut oil.
Which fatty acids are essential nutrients? - CORRECT ANSWER-Essential fatty acids
include linoleic (synthesizes phospholipids) and linolenic.
What is the role of the liver in the use of lipids? - CORRECT ANSWER-
What are the functions of cholesterol? - CORRECT ANSWER-
How do cells use proteins? - CORRECT ANSWER-
Which foods are rich sources of protein? - CORRECT ANSWER-
