Chapter 8,9,10 practice quiz

What is the most crucial nutrient for life?

• Water

• Fiber

• Minerals

• Protein

Answer explanation

Water is essential for all forms of life, as it is involved in vital processes such as digestion, temperature regulation, and nutrient transport. Without water, survival is impossible, making it the most crucial nutrient.

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NGSS.MS-LS1-7

Which of the following nutrients is required for the repair and growth of body tissue?

• Carbohydrates

• Proteins

• Vitamins

• Fats

Answer explanation

Proteins are essential for the repair and growth of body tissues, as they provide the building blocks (amino acids) necessary for tissue synthesis. Carbohydrates, fats, and vitamins serve different roles in the body.

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NGSS.MS-LS1-7

Which of the following nutrients moves food through the digestive tract?

• Water

• Fiber

• Minerals

• Starch

Answer explanation

Fiber is essential for moving food through the digestive tract as it adds bulk to the stool and helps regulate bowel movements. Unlike water, minerals, and starch, fiber specifically aids in digestion and promotes gut health.

What substance plays a vital role in maintaining healthy skin and hair, insulating body organs against shock, maintaining body temperature, and promoting healthy cell function?

• Fats

• Fibers

• Proteins

• Carbohydrates

Answer explanation

Fats are essential for healthy skin and hair, provide insulation for organs, help regulate body temperature, and support cell function, making them the correct choice for this question.

Which of the following is a healthier fat to include in the diet?

• Trans fat

• Saturated fat

• Unsaturated fat

• Hydrogenated fat

Answer explanation

Unsaturated fat is considered healthier as it can improve cholesterol levels and reduce the risk of heart disease. In contrast, trans and saturated fats can raise bad cholesterol levels, while hydrogenated fats are often unhealthy.

Which vitamin helps to maintain bone health?

• B12

• D

• B6

• Niacin

Answer explanation

Vitamin D is essential for maintaining bone health as it helps the body absorb calcium, which is crucial for bone strength. Without adequate vitamin D, bones can become weak and brittle.

Which of the following is a trace mineral?

• Calcium

• Sodium

• Potassium

• Iron

Answer explanation

Iron is classified as a trace mineral because it is required by the body in small amounts, unlike calcium, sodium, and potassium, which are classified as major minerals needed in larger quantities.

Which of the following foods would be considered a healthy, nutrient-dense food?

• Nonfat milk

• Celery

• Soft drink

• Potato chips

Answer explanation

Nonfat milk is a healthy, nutrient-dense food as it provides essential nutrients like calcium and protein without added sugars or unhealthy fats, unlike soft drinks and potato chips which are low in nutrients.

The rate at which your body consumes food energy to sustain basic functions is your

• basal metabolic rate

• resting metabolic rate

• body mass index

• set point

Answer explanation

The basal metabolic rate (BMR) is the rate at which your body uses energy to maintain basic functions like breathing and circulation while at rest. It is distinct from resting metabolic rate, which includes energy used during light activity.

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Which of the following statements is false?

• A slowing basal metabolic rate may lead to weight gain after age 30

• Hormones are implicated in hunger impulses and eating behavior.

• The more muscles you have, the fewer calories you'll burn

• Overweight and obesity can have serious health consequences, even before middle age

Answer explanation

The statement 'The more muscles you have, the fewer calories you’ll burn' is false. In reality, more muscle mass increases your basal metabolic rate, leading to more calories burned.

Tags

NGSS.MS-LS1-7