7.10 Digestive and Endocrine Systems, 7.11 Nervous System, 7.12

What are macronutrients?

• Vitamins and minerals

• Carbohydrates, fats, and proteins

• Water and fiber

• Enzymes and hormones

Answer explanation

Macronutrients are essential nutrients that provide energy and support bodily functions. They include carbohydrates, fats, and proteins, which are needed in larger amounts compared to vitamins, minerals, water, and fiber.

How many calories of energy does one gram of carbohydrate provide?

• 2 calories

• 4 calories

• 6 calories

• 8 calories

Answer explanation

One gram of carbohydrate provides 4 calories of energy. This is a standard value used in nutrition, making 4 calories the correct answer.

Which of the following is a source of simple carbohydrates?

• Legumes

• Honey

• Rice

• Pasta

Answer explanation

Honey is a source of simple carbohydrates, primarily consisting of fructose and glucose. In contrast, legumes, rice, and pasta contain complex carbohydrates, which take longer to digest.

What is the impact of stress on the digestive and endocrine systems?

• No impact

• Enhances efficiency

• Reduces efficiency

• Increases energy levels

Answer explanation

Stress negatively affects the digestive and endocrine systems, leading to reduced efficiency in their functions. This can result in digestive issues and hormonal imbalances, making the body less effective in managing these systems.

Which of the following foods is a source of complex carbohydrates?

• Soft drinks

• Cakes

• Legumes

• Lollies

Answer explanation

Legumes are a rich source of complex carbohydrates, providing fiber and nutrients. In contrast, soft drinks, cakes, and lollies primarily contain simple sugars and lack the nutritional benefits of complex carbs.

What is the function of micronutrients in the body?

• Provide energy

• Support growth and development

• Build muscle

• Store fat

Answer explanation

Micronutrients, such as vitamins and minerals, are essential for various bodily functions, including supporting growth and development. They do not provide energy, build muscle, or store fat directly.

Which nutrient category includes vitamins?

• Macronutrients

• Micronutrients

• Carbohydrates

• Proteins

Answer explanation

Vitamins are classified as micronutrients, which are essential nutrients required in smaller amounts compared to macronutrients like carbohydrates, proteins, and fats. Therefore, the correct answer is micronutrients.

What is the primary form of energy that cells use from carbohydrates?

• Glycogen

• Adenosine triphosphate (ATP)

• Lipids

• Protein

Answer explanation

Cells primarily use adenosine triphosphate (ATP) as the main energy currency derived from carbohydrates. ATP is produced during cellular respiration, allowing cells to perform various functions efficiently.

Which foods are high in monounsaturated fats?

• Red meat and dairy products

• Canola oil and avocados

• Potato chips and baked goods

• Full-fat milk and butter

Answer explanation

Canola oil and avocados are rich in monounsaturated fats, which are beneficial for heart health. In contrast, red meat, dairy products, potato chips, and baked goods contain higher levels of saturated fats.

Which type of fat includes omega-3 and omega-6 fatty acids?

• Saturated fats

• Monounsaturated fats

• Polyunsaturated fats

• Trans fats

Answer explanation

Polyunsaturated fats are the type of fat that includes essential fatty acids like omega-3 and omega-6. These fats are important for heart health and overall well-being, unlike saturated and trans fats.