Exam 12: Nutrition and Physical Activity: Keys to Good Health
What are five functions of water?
Water has many important functions, including:
-it is a lubricant that bathes the tissues and cells
-it is a means of transporting nutrients, hormones, and waste products
-it is an important component of many chemical reactions, especially those related to energy production
-it is a structural component of body tissues such as proteins and glycogen
-it is vital in regulating body temperature; without enough water, we can't cool our bodies properly through sweating and could suffer heat illnesses and death.
Consuming high glycemic foods immediately after exercising can enhance glycogen storage.
True
List and describe five different deceptive practices used to market and sell ergogenic aids.
1. Taking published research out of context, applying the findings in an unproven manner, or having inappropriate control over study results. Some companies claim that research has been done or is currently being done, but fail to provide specific information.
2. Paying celebrities to endorse products - remember that testimonials can be faked, bought and exaggerated.
3. Stating that the product is patented and that this proves its effectiveness. Patents are granted to indicate differences among products.
4. Advertising through infomercials and mass-media marketing videos. Although the Advertising Standards Canada regulates false claims in advertising, products may be investigated only if they appear to pose significant public danger.
5. Offering mail-order fitness evaluations or anabolic measurements. Most of these evaluations are inappropriate and inaccurate.
Muscle tissue contains enough creatine phosphate (CP) to sustain physical activity for up to 10 to 15 minutes.
Studies demonstrate that supplements of androstenedione and dehydroepiandrosterone (DHEA) are effective in raising testosterone concentrations in the body.
Complete the table below by inserting the appropriate percentage of primary fuel used during the following activities:
Sprint start (0-3 sec.) ________% ATP/CP
100 metre dash (10-12 sec.) ________% ATP/CP and ________% carbohydrate (CHO)
1500 metre race (4-6 min.) ________% CHO and ________ % ATP/CP
10 km race (32-40 min.) ________% CHO
Marathon (2.5-3 hrs) ________% CHO ________% FAT and ________% other
Day-long hike (5.5-7 hrs) ________% FAT and ________ % CHO
Andrea thinks that carbohydrate loading could be beneficial to her. Which of the following statements is FALSE about this practice?
Which of the following BEST describes how ATP provides energy to the body's cells?
Lactic acid is produced during both aerobic and anaerobic conditions.
Describe the findings from the 2004-2005 Canadian Community Health Survey (CCHS) regarding physical activity and trends of physical activity in Canada.
What is glycolysis and what is the primary end product of glycolysis?
Warm-up exercises prepare the muscles for exertion by increasing blood flow and temperature.
The combination of heart, lungs, and circulatory system that supplies oxygen and nutrients to working muscles is known as the
Placing an extra physical demand on the body to improve the fitness level is called
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