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PORTAGE BIOD 121 FINAL EXAM NEWEST 2025
ACTUAL EXAM| COMPLETE 250 REAL EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+| PORTAGE BIOD 121 EXAM REVIEW
2025 (BRAND NEW!!)
There are six classes of nutrients. Name all that provide structure. - ANSWER - Protein, fat, mineral and water
The current recommendation to maintain your body weight is 2000 calories daily. If you are told that you should not consume any more than 23 % of your calories from fat, how many grams of fat should you eat in a day? - ANSWER - 2000 x .23 = 460 460 calories / 9 = 51.1 grams of fat
Name the key hormone that causes a feeling of hunger. Indicate where in the body it is produced and the process by which it operates. - ANSWER
- Ghrelin is produced by the stomach and travels to the brain to stimulate
the hunger center as it deactivates the satiety center.
Name the key hormone that causes a feeling of satiety. Indicate where in the body it is produced and the process by which it operates. - ANSWER
- Leptin is produced by the fat cells which are also known as adipose
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tissue. The role of leptin is to alert the brain to turn off the hunger center and activate the satiety center when consuming a meal.
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pg. 2 Name the four types of external forces that influence our eating habits and patterns and give an example of how you experience each in your life. - ANSWER - Sensory. Ex. smell of the food Cognitive. Ex. comfort foods or habits learned from parents Environmental. Ex. higher income families spend more going out to eat Health Status. ex. declining taste sensitivity related to age or medication
There are six classes of nutrients. Name all that are considered macronutrients. - ANSWER - Carbohydrates, Protein, Lipids/Fats and Water
Which macromolecule type plays a role in structural components, regulates body function, and enzyme production? - ANSWER - proteins
The standard adult BMI chart is not applicable to everyone. Who are some groups to whom the standard BMI chart does not apply? ( List at least 4) - ANSWER - Children, teens, pregnant women, breast feeding women, short stature adults, very muscular individuals and the elderly.
What are some factors that can influence an individual's BMR? - ANSWER - The BMR varies per person based on a number of factors such as; gender, lean body mass, body size, temperature, age, nervous system activity, caffeine, smoking, pregnancy, and diet.
What type of obesity is typically found in females?What body shape is associated with this particular obesity? - ANSWER - gynoid, pear 2 / 4
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pg. 3 Direct calorimetry estimates a person's energy requirements by - ANSWER - Measuring the heat produced in a sealed chamber
What shape has the greatest health risks and why? - ANSWER - Apple, because the fat in the abdominal tissues interferes with the liver's ability to use insulin.
What range of BMI values represents a person that is obese? - ANSWER
- If BMI is equal to or greater than thirty
What range of BMI values represents a person with a healthy weight? - ANSWER - 18.5 to 24.9
All of the following can be used to determine a person's body fat percentage except Calipers Underwater weighing Electrical resistance Direct calorimetry - ANSWER - Direct calorimetry
Ignoring factors other than age, how does BMR change as a person grows older? What does this mean for their dietary intake? - ANSWER - As we age our BMR declines by 1-2% per decade. If no change in diet or activity level occurs from one decade to the next, a slow weight gain will be the result.
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Anthropometrics estimates a person's percentage of fat by: - ANSWER -
Using a caliper
What type of obesity is typically found in males?What body shape is associated with this particular obesity? - ANSWER - Android, apple
Which person is at a greater risk for health issues related to being overweight or obese?Janet has a BMI of 28 and a waist to hip ratio of
0.95. Fred has a BMI of 28.9 and a waist to hip ratio of 0.78. -
ANSWER - Janet. Both have a BMI that indicates being overweight, but Janet has a more at-risk waist to hip ratio as her value is greater than 0.8.
Bioelectrical impedance estimates a person's body fat - ANSWER - By measuring the degree of resistance to an electrical flow
Indirect calorimetry estimates a person's energy requirements by - ANSWER - Comparing the amount of oxygen consumed with the amount of carbon dioxide expired
In order to meet minimal nutritional requirements, what guidelines are given for the minimum number of calories men and women should consume per day? - ANSWER - For females, no less than 1200 For males, no less than 1500
An essential amino acid can not be synthesized by the body - ANSWER
- Plant proteins are high quality protein
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