BIO 117 Mastering Nutrition Ch. 12

To achieve a moderate-intensity aerobic workout, what should be the target range for the maximal heart rate? 90-110% of maximal heart rate 20-30% of maximal heart rate no more than 85% of maximal heart rate 50-70% of maximal heart rate

50-70% of maximal heart rate

The combination of heart, lungs, and circulatory system that supplies oxygen and nutrients to working muscles is known as the musculoskeletal system. enteric nervous system. central nervous system. cardiorespiratory system.

Cardiorespiratory system

Which of the following is NOT TRUE about cool-down exercise after an exercise session? helps to prevent injury causes fatigue helps to reduce muscle soreness involves stretching

Causes fatigue

Which of the following is NOT one of the physiological effects of regular physical activity? enhances gastric motility enhances the action of insulin improves sleep patterns decreases high-density lipoprotein (HDL) cholesterol

Decreases high-density lipoprotein (HDL) cholesterol

The primary way the body loses heat is through respiration. urine. evaporative cooling. feces.

Evaporative cooling

True or False: The best way to stimulate growth of skeletal muscle is to eat a high-protein diet.

False

Carbohydrate loading maximizes the amount of which substance stored in skeletal muscles? glucose glycogen calcium hemoglobin

Glycogen

Which of the following is traditionally used to evaluate the level of intensity of aerobic activity? blood glucose level distance traveled per unit of time (e.g., steps per hour) blood pressure heart rate

Heart rate

Which of the following is MOST likely to occur when a runner stops suddenly after a race? heat exhaustion heat cramps heat syncope heat stroke

Heat syncope

Repeatedly overworking a muscle to increase muscle strength and size is known as aerobic training. atrophy. flexibility. hypertrophy.

Hypertrophy

What is meant by the overload principle? complete depletion of the body's glycogen stretching a muscle group beyond the joint's healthy range of motion improving fitness by placing extra physical demand on the body subjecting the body to inappropriately high stress

Improving fitness by placing extra physical demand on the body

Which of the following is FALSE concerning aerobic metabolism? It provides fuel for exercise lasting more than 3 minutes. It supplies more energy than anaerobic metabolism. Its by-products are carbon dioxide and water. It leads to muscle fatigue.

It leads to muscle fatigue

Which of the following is NOT one of the ways in which regular physical activity can reduce the risks for heart disease, stroke, and high blood pressure? It increases high-density lipoprotein (HDL) cholesterol. It limits the progression of atherosclerosis. It helps maintain healthy blood pressure. It raises triglyceride levels in the blood.

It raises triglyceride levels in the blood

When oxygen is scarce, cellular pyruvic acid is converted to fatty acids. glucose. lactic acid. ATP.

Lactic Acid

In which of the following types of exercise would creatine phosphate (CP) be an important source of energy? playing in a football game sprinting in a 100-meter race running a 10-kilometer road race biking up a mountain

Sprinting in a 100-meter race

True or False: Athletes should not take iron supplements unless prescribed by a health care professional.

True

True or False: The target intensity for flexibility is to stretch through a joint's full range of motion.

True

True or False: Thirst is a relatively poor indicator of dehydration.

True

What are the MOST common sources of glucose needed for energy during exercise? amino acids from protein and glucose found in bones vitamins and minerals in nutritional supplements and protein found in blood pyruvic acid from carbohydrates and fatty acids stored in adipose tissue glucose from blood and glycogen stored in muscles

glucose from blood and glycogen stored in muscles

The FITT principle is the level of fitness one should achieve according to one's age. a method to determine fitness based on flexibility, interest, training, and technique. a method to determine your fitness level based on your target heart rate. the principle that a good physical fitness program should be based on frequency, intensity, time, and type of activity.

the principle that a good physical fitness program should be based on frequency, intensity, time, and type of activity.