1.
The body uses nutrients to:
Correct Answer(s)
A. All of the above
B. All of the above
Explanation
The body uses nutrients for various purposes, including providing energy, supporting growth and development, repairing tissues, and maintaining overall health. Nutrients are essential for the proper functioning of the body's systems and organs. They are used in processes such as metabolism, digestion, and immune function. Therefore, the statement "all of the above" is correct because it encompasses the different ways in which the body utilizes nutrients.
2.
In general, the body needs vitamins to:
Correct Answer
D. Regulate cellular activities
Explanation
Vitamins are essential for regulating cellular activities in the body. They act as coenzymes or cofactors that help enzymes function properly, which in turn regulate various cellular processes. For example, vitamin A is important for vision, vitamin D helps in calcium absorption and bone health, and vitamin C is involved in collagen synthesis and immune function. Without adequate amounts of vitamins, cellular activities may be disrupted, leading to various health issues.
3.
The body can make vitamin _______ when exposed to sunlight.
Correct Answer
B. D
Explanation
When the body is exposed to sunlight, it can produce vitamin D. Vitamin D is synthesized in the skin when it is exposed to ultraviolet B (UVB) radiation from the sun. This process occurs in the epidermis, the outermost layer of the skin, and involves the conversion of a precursor molecule called 7-dehydrocholesterol into vitamin D3. Vitamin D is essential for maintaining healthy bones and teeth, as well as supporting immune function. It can also be obtained through dietary sources, such as fatty fish and fortified foods, but sunlight exposure is a primary source of vitamin D production in the body.
4.
Which of the following foods is a good source of phytochemicals?
Correct Answer
B. Carrots
Explanation
Carrots are a good source of phytochemicals. Phytochemicals are naturally occurring compounds found in plants that have been shown to have numerous health benefits. Carrots contain various phytochemicals such as carotenoids, which are responsible for their vibrant orange color. Carotenoids have antioxidant properties and are known to help protect against certain types of cancer and promote eye health. Therefore, carrots are a nutritious food choice that provides phytochemicals essential for maintaining good health.
5.
The process of breaking down complex food molecules into nutrients is called:
Correct Answer
A. Digestion
Explanation
Digestion is the correct answer because it refers to the process of breaking down complex food molecules into smaller, simpler nutrients that can be absorbed and utilized by the body. This process occurs in the digestive system, where enzymes and other substances break down carbohydrates, proteins, and fats into glucose, amino acids, and fatty acids, respectively. Digestion is essential for providing the body with the necessary nutrients for energy production, growth, and repair. "Carb crunching" is not a recognized term or process related to the breakdown of food molecules.
6.
By the time digested food enters the _______, most of its nutrients have been absorbed.
Correct Answer
C. Large Intestine
Explanation
The large intestine is the final section of the digestive system, where water and electrolytes are absorbed from the remaining digested food. By the time the digested food reaches the large intestine, most of its nutrients have already been absorbed in the small intestine. The large intestine primarily functions to absorb water and eliminate waste products from the body.
7.
The energy value of a food is reported as a number of:
Correct Answer
A. Calories
Explanation
The energy value of a food is reported as a number of calories. Calories are a unit of measurement used to quantify the amount of energy provided by food when it is consumed and metabolized by the body. It represents the potential energy that can be derived from the food and used by the body for various physiological functions. Vitamins, on the other hand, are organic compounds that are essential for the body's normal growth and function, but they do not provide energy directly. Therefore, the correct answer is calories.
8.
Which of the following substances does not provide calories?
Correct Answer
B. Vitamins
Explanation
Vitamins do not provide calories because they are essential nutrients that the body needs in small amounts for various metabolic processes. Unlike carbohydrates, proteins, and fats, which provide energy in the form of calories, vitamins do not directly contribute to the body's energy supply. Instead, they play a crucial role in supporting the body's overall health and functioning by aiding in processes such as growth, development, and immune system function.
9.
Which of the following foods is a good source of carbohydrates?
Correct Answer
D. Peach
Explanation
Peaches are a good source of carbohydrates because they contain natural sugars and fiber. Carbohydrates are the body's main source of energy, and fruits like peaches provide a healthy and natural way to fuel the body. While beans and vegetables also contain carbohydrates, peaches specifically are known for their high carbohydrate content. Carrots, on the other hand, are primarily a source of vitamins and minerals rather than carbohydrates.
10.
Which of the following foods supplies starch?
Correct Answer
C.
Beans
Explanation
Beans supply starch because they are a type of legume that contains a high amount of carbohydrates, including starch. Starch is a complex carbohydrate that is broken down by the body into glucose, providing a source of energy. Other foods on the list, such as peaches and carrots, do not supply starch as they are low in carbohydrates and mainly consist of water and fiber. Bread, on the other hand, is made from grains like wheat, which are rich in starch.
11.
Plants make _______, a substance that the human small intestine cannot digest.
Correct Answer
A. Fiber
Explanation
Plants produce fiber, which is a type of carbohydrate that cannot be digested by the human small intestine. It passes through the digestive system intact, providing bulk and promoting healthy bowel movements. Fiber is important for maintaining good digestive health and preventing constipation. It also helps regulate blood sugar levels, lower cholesterol, and promote weight loss. Therefore, the correct answer is fiber.
12.
To increase his soluble fiber intake, Micah should eat more:
Correct Answer
D. Cooked Oatmeal
Explanation
Cooked oatmeal is a good source of soluble fiber. Soluble fiber helps to lower cholesterol levels and regulate blood sugar levels. Peaches and carrots are high in insoluble fiber, which aids in digestion but does not have the same benefits as soluble fiber. Beans are also a good source of fiber, but they contain more insoluble fiber than soluble fiber. Therefore, cooked oatmeal is the best choice for increasing soluble fiber intake.
13.
_______ is the form of sugar that is used to sweeten regular soft drinks.
Correct Answer
A. High fructose corn syrup
Explanation
High fructose corn syrup is the form of sugar that is commonly used to sweeten regular soft drinks. It is derived from corn starch and has a high fructose content, making it a popular choice for sweetening beverages. It is cheaper than other sweeteners, easily dissolves in liquids, and provides a consistent sweetness level. High fructose corn syrup is widely used in the food and beverage industry, including soft drinks, due to its affordability and ability to enhance flavor.
14.
Which of the following substances is an artificial sweetener?
Correct Answer(s)
A. All of the above
B. All of the above
Explanation
The correct answer is "All of the above." This means that all of the substances listed in the options are artificial sweeteners. However, without the information about what substances are listed in the options, it is not possible to provide a specific explanation.
15.
Many nutrition experts think Americans should consume 55% to 60% of their calories from:
Correct Answer
B. Carbs
Explanation
Many nutrition experts recommend that Americans should consume 55% to 60% of their calories from carbohydrates. Carbohydrates are the body's primary source of energy and provide essential nutrients such as fiber, vitamins, and minerals. They are found in foods like grains, fruits, vegetables, and legumes. Consuming an adequate amount of carbohydrates helps maintain energy levels, supports brain function, and promotes overall health and well-being.
16.
Diets that contain large amounts of soluble fiber may:
Correct Answer
D. Lower the risk of heart disease
Explanation
Diets that contain large amounts of soluble fiber have been shown to lower the risk of heart disease. Soluble fiber helps to lower cholesterol levels by binding to cholesterol in the digestive tract and preventing its absorption into the bloodstream. This can help to reduce the buildup of plaque in the arteries and decrease the risk of heart disease.
17.
Diets that contain large amounts of insoluble fiber may:
Correct Answer
A. Reduce the risk of constipation
Explanation
Diets that are high in insoluble fiber can help to reduce the risk of constipation. Insoluble fiber adds bulk to the stool, making it easier to pass through the digestive system. This can help to prevent and alleviate constipation, as it promotes regular bowel movements. On the other hand, there is no mention of reducing the risk of heart disease in the given information, so it cannot be considered as a correct answer.
18.
Diets that contain large amounts of fiber may reduce the risk of:
Correct Answer(s)
A. All of the above.
B. All of the above
Explanation
A diet high in fiber can help reduce the risk of various health conditions. Fiber helps regulate blood sugar levels, lower cholesterol levels, promote healthy digestion, and maintain a healthy weight. Therefore, consuming a diet rich in fiber can potentially reduce the risk of all the mentioned health conditions, including heart disease, diabetes, obesity, and certain types of cancer.
19.
Which of the following foods contains the highest percentage of saturated fatty acids?
Correct Answer
A. Unsalted butter
Explanation
Unsalted butter contains the highest percentage of saturated fatty acids compared to the other options. Saturated fatty acids are typically solid at room temperature and can increase levels of LDL cholesterol in the blood, which can lead to heart disease. Butter, especially unsalted butter, is known for its high saturated fat content, making it the correct answer. Fast food, bacon, and grilled chicken may also contain saturated fats, but the percentage is generally lower compared to unsalted butter.
20.
Which of the following foods is the richest source of monounsaturated fatty acids?
Correct Answer
B. Olive oil
Explanation
Olive oil is the richest source of monounsaturated fatty acids among the given options. Monounsaturated fats are considered healthy fats that can help improve heart health by reducing bad cholesterol levels. Olive oil is particularly high in monounsaturated fats, specifically oleic acid, which has been linked to various health benefits, including reducing inflammation and improving insulin sensitivity. Corn oil, whole milk, and tuna also contain some monounsaturated fats, but olive oil has the highest concentration of this type of fat.
21.
Which of the following fats is the richest source of polyunsaturated fatty acids?
Correct Answer
A. Corn oil
Explanation
Corn oil is the correct answer because it is known to be the richest source of polyunsaturated fatty acids. It contains a high amount of omega-6 fatty acids, which are essential for the body. Olive oil, on the other hand, is primarily composed of monounsaturated fats. Whole milk and tuna contain some amount of polyunsaturated fats, but they are not as rich in them as corn oil.
22.
Which of the following foods contains cholesterol?
Correct Answer
C. Whole milk
Explanation
Whole milk contains cholesterol because it is derived from animal sources, specifically cows. Cholesterol is a type of fat found in animal products, and milk is no exception. Corn oil and olive oil, on the other hand, are plant-based oils and do not contain cholesterol. Tuna is a type of fish, and like other seafood, it is low in cholesterol. Therefore, out of the given options, whole milk is the only food that contains cholesterol.
23.
Which of the following foods is an excellent source of omega-three fatty acids?
Correct Answer
D. Tuna
Explanation
Tuna is an excellent source of omega-three fatty acids. Omega-three fatty acids are essential for the body and have numerous health benefits, including reducing inflammation, improving heart health, and supporting brain function. Tuna is a fatty fish that is rich in omega-three fatty acids, specifically EPA and DHA. Corn oil and olive oil do not contain significant amounts of omega-three fatty acids. Whole milk does contain some omega-three fatty acids, but the levels are much lower compared to tuna. Therefore, tuna is the correct answer as it is the best source of omega-three fatty acids among the given options.
24.
In the body, trans fats behave like _______, raising blood cholesterol levels.
Correct Answer
A. Saturated Fats
Explanation
Trans fats behave like saturated fats, raising blood cholesterol levels. Saturated fats are known to increase LDL (bad) cholesterol levels in the body. Trans fats, which are artificially created by the process of hydrogenation, have a similar effect on cholesterol levels. They raise LDL cholesterol levels while also lowering HDL (good) cholesterol levels, making them even more harmful for cardiovascular health. Therefore, the correct answer is saturated fats.
25.
Complete protein:
Correct Answer
B. Contains adequate amounts of the essential amino acids.
Explanation
The correct answer is "contains adequate amounts of the essential amino acids." A complete protein is one that contains all of the essential amino acids in the right proportions that the body needs. These essential amino acids cannot be produced by the body and must be obtained from the diet. Therefore, a complete protein is necessary for proper growth, development, and maintenance of the body.
26.
Ted is a vegan. He will eat:
Correct Answer
A. All of the above
Explanation
Since the options are not provided in the question, it is not possible to determine what "All of the above" refers to. Therefore, an explanation cannot be provided.
27.
Which of the following nutrients is an antioxidant?
Correct Answer
E. Vitamin E
Explanation
Vitamin E is an antioxidant because it helps protect the body's cells from damage caused by free radicals, which are unstable molecules that can harm cells. It does this by neutralizing the free radicals and preventing them from causing oxidative stress. Vitamin E also has anti-inflammatory properties and plays a role in immune function.
28.
_______ is a major cause of bone fractures in elderly people.
Correct Answer
D. Osteoporosis
Explanation
Osteoporosis is a condition characterized by low bone mass and deterioration of bone tissue, leading to increased bone fragility and susceptibility to fractures. It is most commonly seen in elderly individuals, particularly postmenopausal women, due to hormonal changes and age-related bone loss. The decreased bone density and weakened bones associated with osteoporosis make it a major cause of bone fractures in the elderly population.
29.
_______ are rich food sources of calcium.
Correct Answer
A. Milk products
Explanation
Milk products are rich food sources of calcium because they contain high levels of this mineral. Calcium is essential for maintaining strong bones and teeth, and milk products such as milk, cheese, and yogurt are known to be excellent sources of calcium. These dairy products provide a readily absorbable form of calcium, making them an important part of a balanced diet for maintaining healthy bones and teeth.
30.
Women of childbearing age and teenagers often have diets that supply inadequate amounts of:
Correct Answer
C. Iron
Explanation
Women of childbearing age and teenagers often have diets that supply inadequate amounts of iron. Iron is an essential mineral that plays a crucial role in the production of hemoglobin, a protein in red blood cells that carries oxygen to the body's tissues. Women of childbearing age and teenagers are at a higher risk of iron deficiency due to factors such as menstrual blood loss and rapid growth. Inadequate iron intake can lead to iron deficiency anemia, which can cause fatigue, weakness, and impaired cognitive function. Therefore, it is important for women of childbearing age and teenagers to ensure they consume sufficient iron in their diets.
31.
To establish an RDA for a nutrient, scientists take the amount that is required and:
Correct Answer
A. Add an extra amount that serves as a margin for safety
Explanation
To establish an RDA (Recommended Dietary Allowance) for a nutrient, scientists take the amount that is required and add an extra amount that serves as a margin for safety. This is done to ensure that the recommended intake level is sufficient for the majority of the population, including individuals with higher nutrient needs or variations in absorption. By adding a margin for safety, scientists aim to prevent nutrient deficiencies and account for individual differences in nutrient requirements.
32.
Becky wants to plan nutritious daily menus for her family. For the most complete information about amounts of foods to prepare from each food group, she should use the:
Correct Answer
D. My pyramid plan
Explanation
The My Pyramid Plan is the most complete source of information about amounts of foods to prepare from each food group. It provides a visual representation of the recommended proportions of different food groups in a daily diet, including grains, fruits, vegetables, protein, and dairy. This plan helps individuals like Becky to ensure that they are including a balanced variety of foods from each group, promoting a healthy and nutritious diet for her family.
33.
Which of the following information appears in the Nutrition Facts panel of a food label?
Correct Answer(s)
A. All of the above
B. All of the above
Explanation
The question asks about the information that appears in the Nutrition Facts panel of a food label. The answer "All of the above" implies that all the options listed in the question are correct and can be found in the Nutrition Facts panel. Since the options are not provided in the question, we can't determine what specific information is being referred to. However, it can be inferred that the Nutrition Facts panel includes various nutritional information such as serving size, calories, fat content, carbohydrate content, protein content, and other relevant information about the food product.
34.
To reduce the risk of giving birth to infants with neural tube defects, women should eat foods rich in _______ before they become pregnant.
Correct Answer
B. Folate
Explanation
Folate is essential for the development of the neural tube in infants. By consuming foods rich in folate before becoming pregnant, women can reduce the risk of neural tube defects in their babies. Folate helps in the proper formation of the brain and spinal cord, reducing the chances of conditions like spina bifida. Therefore, incorporating folate-rich foods into the diet is crucial for women planning to conceive.
35.
Cells use _______ for energy.
Correct Answer
C. Glucose
Explanation
Cells use glucose for energy. Glucose is a type of sugar that is broken down through a process called cellular respiration to produce ATP, the main energy currency of cells. This process occurs in the mitochondria, which are the powerhouses of the cell. Ribosomes, on the other hand, are responsible for protein synthesis and not directly involved in energy production. Therefore, glucose is the correct answer for this question.