1.
One of the six classes of nutrients that includes sugars, starches and fiber. The body's main source of energy
Correct Answer
A. Carbohydrates
Explanation
Carbohydrates are one of the six classes of nutrients that include sugars, starches, and fiber. They are the body's main source of energy. Carbohydrates are broken down into glucose, which is then used by the body for various functions, including powering the brain, muscles, and other organs. They provide quick energy and are essential for maintaining proper bodily functions.
2.
A polysaccharide. Starch and fiber are two examples
Correct Answer
A. Complex Carbohydrate
Explanation
The correct answer is "Complex Carbohydrate" because polysaccharides, such as starch and fiber, are composed of multiple sugar molecules linked together. Complex carbohydrates are larger and more complex in structure compared to simple carbohydrates like glucose and fructose, which consist of only one or two sugar molecules.
3.
The body's storage form of glucose
Correct Answer
B. Glycogen
Explanation
Glycogen is the body's storage form of glucose. It is a polysaccharide, which means it is made up of multiple glucose molecules linked together. When glucose levels in the body are high, excess glucose is converted into glycogen and stored in the liver and muscles. This stored glycogen can be broken down into glucose when the body needs energy, such as during periods of fasting or intense exercise. Glycogen serves as an important energy reserve in the body, allowing for a steady supply of glucose to be released when needed.
4.
Tooth decay
Correct Answer
C. Dental caries
Explanation
Dental caries is the correct answer because it refers to tooth decay, which is the process of the destruction of tooth enamel caused by acids produced by bacteria in the mouth. Dental caries is a common dental problem that can lead to cavities and tooth loss if left untreated. The other options, such as dentalia, dermabrasion, and glucose, are unrelated to tooth decay.
5.
A lack of or an inability to use the hormone insulin, which results in a buildup of glucose in the bloodstream
Correct Answer
C. Diabetes mellitus
Explanation
Diabetes mellitus is the correct answer because it is a condition characterized by a lack of or an inability to use the hormone insulin, which leads to high levels of glucose in the bloodstream. This condition results in hyperglycemia, not hypoglycemia. Cholesterol and carbohydrate are not directly related to the given description.
6.
Indigestible polysaccharides that make up the tough fibrous walls of plants.
Correct Answer
A. Fiber
Explanation
Fiber refers to indigestible polysaccharides that form the tough fibrous walls of plants. Unlike starch and glucose, fiber cannot be broken down by the digestive enzymes in the human body. Instead, it passes through the digestive system largely intact, adding bulk to the stool and aiding in regular bowel movements. Fiber is known for its ability to promote digestive health, prevent constipation, and regulate blood sugar levels.
7.
A monosaccharide that circulates in the bloodstream and serves as the body's source of energy
Correct Answer
B. Glusoce
Explanation
Glucose is a monosaccharide that circulates in the bloodstream and serves as the body's source of energy. It is the primary fuel for cellular respiration and is required for various metabolic processes in the body. Glucose is easily transported across cell membranes and can be readily metabolized to produce ATP, the energy currency of cells. It is derived from the breakdown of carbohydrates in the diet and is stored in the form of glycogen in the liver and muscles.
8.
A low blood glucose level
Correct Answer
D. Hypoglycemia
Explanation
Hypoglycemia refers to a low blood glucose level. It occurs when the body's blood sugar drops below normal levels, leading to symptoms such as dizziness, confusion, and weakness. This condition is commonly seen in individuals with diabetes mellitus who take insulin or certain medications to control their blood sugar levels. Hypoglycemia can also occur in individuals who have not eaten for a long period or have engaged in excessive physical activity without consuming enough carbohydrates. Treatment usually involves consuming a source of glucose to raise blood sugar levels back to normal.
9.
A carbohydrate made up of two sugar units. Sucrose, lactose, and maltose are examples
Correct Answer
A. Disaccharides
Explanation
Disaccharides are carbohydrates made up of two sugar units. Examples of disaccharides include sucrose, lactose, and maltose. These molecules are formed when two monosaccharides are joined together through a dehydration synthesis reaction, resulting in the formation of a glycosidic bond. Disaccharides are a type of sugar that provides energy to the body and is commonly found in foods such as fruits, vegetables, and grains.
10.
A chemical produced in the body and released into the bloodstream to regulate specific body processes.
Correct Answer
D. Hormone
Explanation
A hormone is a chemical produced in the body and released into the bloodstream to regulate specific body processes. Insulin is a hormone that plays a crucial role in regulating blood sugar levels. Hypoglycemia refers to low blood sugar levels, which can be caused by a deficiency of insulin. Diabetes mellitus is a metabolic disorder characterized by high blood sugar levels due to either insufficient insulin production or the body's inability to use insulin effectively. Therefore, the correct answer is hormone, as it encompasses the general definition and includes insulin as an example.
11.
A hormone secreted by the pancreas to regulate blood glucose level.
Correct Answer
A. Insulin
Explanation
Insulin is a hormone that is produced and secreted by the pancreas. Its main function is to regulate the level of glucose in the blood. It does this by allowing cells in the body to take in glucose from the bloodstream and use it as a source of energy. Without insulin, the body's cells would not be able to effectively absorb and utilize glucose, leading to high blood sugar levels and potentially causing health issues such as diabetes. Therefore, insulin plays a crucial role in maintaining the balance of blood glucose levels.
12.
An indigestible carbohydrate from plants that does not dissolve in water.
Correct Answer
C. Insoluble fiber
Explanation
Insoluble fiber is an indigestible carbohydrate from plants that does not dissolve in water. It passes through the digestive system largely intact, adding bulk to the stool and promoting regular bowel movements. This type of fiber helps prevent constipation and may also have a positive effect on digestive health by promoting the growth of beneficial bacteria in the gut.
13.
An inability to digest lactose, due to a lack of the digestive enzyme lactase
Correct Answer
B. Lactose intolerance
Explanation
Lactose intolerance refers to the inability to digest lactose, a sugar found in milk and dairy products, due to a lack of the digestive enzyme lactase. Without lactase, lactose cannot be broken down and absorbed by the body, leading to symptoms such as bloating, diarrhea, and stomach cramps when consuming lactose-containing foods. Hypoglycemia, on the other hand, refers to low blood sugar levels and is not related to lactose digestion. Lactose inthurmia is not a recognized medical term and does not provide a valid explanation for the given answer.
14.
The main sugar found in milk
Correct Answer
A. Lactose
Explanation
Lactose is the main sugar found in milk. It is a disaccharide composed of glucose and galactose. Lactose is unique to mammalian milk and is broken down by the enzyme lactase in the small intestine. People who are lactose intolerant lack the enzyme lactase, leading to difficulty digesting lactose and experiencing symptoms such as bloating, gas, and diarrhea after consuming milk or dairy products.
15.
A carbohydrate made up of single sugar units. Glucose, fructose, and galactose are examples.
Correct Answer
A. Monosaccharides
Explanation
Monosaccharides are a type of carbohydrate that are composed of single sugar units. Glucose, fructose, and galactose are all examples of monosaccharides. They are the simplest form of carbohydrates and cannot be broken down further. Monosaccharides are an important source of energy for the body and are commonly found in fruits, vegetables, and honey.
16.
A carbohydrate sweetner that is separated from its natural source for use as a food additive. There is a strong link between obesity and this sweetner.
Correct Answer
B. Refined sugar
Explanation
Refined sugar is a carbohydrate sweetener that is separated from its natural source for use as a food additive. There is a strong link between obesity and refined sugar. This is because refined sugar is a highly processed form of sugar that is quickly absorbed by the body, leading to spikes in blood sugar levels and increased calorie intake. Consuming excessive amounts of refined sugar can contribute to weight gain and the development of obesity.
17.
The feeling of fullness a person has after eating food.
Correct Answer
D. Satiety
Explanation
Satiety refers to the feeling of fullness or satisfaction that a person experiences after eating food. It is the sensation that signals the brain that the person has had enough to eat, helping to regulate their food intake. This feeling of satiety is important in maintaining a healthy diet and preventing overeating or excessive calorie intake.
18.
A monosaccharide or disaccaride.
Correct Answer
C. Simple sugar
Explanation
The correct answer is "simple sugar" because monosaccharides and disaccharides are types of simple sugars. Monosaccharides are single sugar molecules, such as glucose and fructose, while disaccharides are formed by the combination of two monosaccharides, such as sucrose and lactose. Complex carbohydrates, on the other hand, are polysaccharides, which are made up of many sugar molecules bonded together. Saturated fat is a type of lipid and is not related to carbohydrates or sugars.
19.
An indigestible carbohydrate from plants that dissolves in water.
Correct Answer
C. Soluble fiber
Explanation
Soluble fiber is an indigestible carbohydrate from plants that dissolves in water. It forms a gel-like substance in the digestive system, which helps to slow down the absorption of glucose and cholesterol into the bloodstream. This can aid in regulating blood sugar levels and reducing cholesterol levels. Soluble fiber is found in foods such as oats, beans, fruits, and vegetables. It also promotes healthy digestion by adding bulk to the stool and preventing constipation.
20.
A collective term used to refer to all the monosaccharides and disaccharides.
Correct Answer
A. Sugars
Explanation
The correct answer is sugars because sugars are a collective term used to refer to all the monosaccharides and disaccharides. Monosaccharides are the simplest form of sugar, such as glucose and fructose, while disaccharides are formed by the combination of two monosaccharides, such as sucrose and lactose. Therefore, sugars encompass both monosaccharides and disaccharides, making it the appropriate collective term for these types of carbohydrates.