Question

10.) What is one major difference between vitamins and minerals?

a. Vitamins are macronutrients and minerals are not

b. Minerals maintain their structure no matter what environment they are in

c. Minerals are easily destroyed by heat and light

d. Only vitamins are divided into two subcategories

19.) Observational studies inform us of

a. cause and effect relationships

b. existing relationships

c. synergistic relationships

d. antagonistic relationships

27.) Mortality rate increases significantly with a BMI over

a. 27

b. 30

c. 32

d. 36

34.) The primary determinant of our basal metabolic rate is

a. age

b. amount of lean body mass

c. activity

d. gender

Answer 1

10. b) Minerals maintain their structure no matter what environment they are in.

Minreals are inorganic compounds, that hold on or maintain their chemical structure and it will not change, but Viamins are organic compounds and are destroyed by heat, light etc.

Other options are wrong:

a) Vitamins and minerals are both micronutrients .

c) Minerals are not easily destroyed by heat and light . They are inorganic compounds and they hold on or maintain their chemical structure im whatever environment they are.

d) vitamins ate divided into two categories; wayer soluble and fat soluble. Even minerals also divided into many categories.

19. b) existing relationships

Observational studies : Observational study is a type of study in which the independent variable is not under the control of researcher because of ethical concerns. In this type of study inferences are drawn from a sample to population. Cohort and case control studies are the two types of observational studies.

27. d) 36

The risk of Mortality is increased with increase in BMI over 25 . The higher the BMI , higher the chances of chronic diseases including heart disease.  

Other options; Option a) 27: over weight

b) 30 : indicates obesity

c) 32: indicates obesity  

34. b) amount of lean body mass

Basal metabolic rate ( BMR) is influenced by many factors like age ( option a) , activity ( c)and gender( d), lean body mass etc. Among this the primary determinant of BMR is the lean body mass . Lean body mass is calculated by obtaining the difference between the totsl body weight and total body fat weight  . Higher the lean body mass , the higher will be the burning of calories, as result the BMR also will be high in people with higher LBM.