Chapter 24: Nutrition Practice Homework

Which of the following is NOT considered a nutrient?

ATP

Which nutrients function primarily as an energy source for cells?

Carbohydrates (carbs are needed in relatively large amounts to supply glucose, the main energy source for body cells)

Which of the following nutrients is NOT matched with its use in the body?

Carbohydrates: hormones (proteins and lipids are both used to synthesize hormones, BUT not carbs)

The term ESSENTIAL NUTRIENT refers to the chemicals that can be interconverted in the liver so that the body can maintain life and good health

FALSE

Vitamins are inorganic compounds that are essential for growth and good health

FALSE

Diets high in cholesterol and saturated fats tend to produce high HDL concentrations

False

The major role of high-density-lipoproteins (HDLs) is to store energy in the form of fat

False

A growing child is likely to exhibit negative nitrogen balance

False (in a growing child or in a pregnant woman, protein incorporation into tissues outpaces the breakdown of protein. This leads to a state known as positive nitrogen balance)

The molecule that serves as the major source of readily available fuel for neurons and blood cells is ________

Glucose

Minerals required by the body in moderate amounts include all of the following EXCEPT________

Iron and Selenium

Cholesterol, though it is NOT an energy molecule, has importance in the body because it______

Is a Stabilizing Component of the plasma membranes and is the Parent molecule of steroid hormones

______ are considered "bad" cholesterol; high blood levels are believed to increase the risk of cardiovascular disease

LDLs

Select the correct statement about proteins

Proteins will be used by most cells for ATP synthesis if insufficient carbohydrates are ingested

Which of the following is NOT an essential role of the liver?

Urea disposal (liver is involved in creating urea from ammonia and CO2, it is up to the kidneys to eliminate the urea)

Which of the following is NOT a fat-soluble vitamin?

Vitamin B (vitamin B is a Water-soluble vitamin)

One of the reasons why statins are effective in reducing the risk of cardiovascular disease is______

They decrease the incidence of cholesterol deposition in arterial walls (statins help lower cholesterol by inhibiting the enzyme HMG-CoA reductase, which plays a central role in the production of cholesterol in the liver)

Which of the following food groups are considered good sources of complete proteins?

Eggs, milk, yogurt, meat, and fish

It is important to ensure that your diet is adequately rich in vitamins because_______

Most vitamins are coenzymes needed to help the body utilize essential nutrients

Which of the following statements best describes complete protein?

Must contain all the body's amino acid requirements for tissue maintenance and growth

Which of the following is a source of complex carbohydrates?

Potatoes

In the case of a person who consumes a normal, balanced diet, proteins are essential to the body for all of the following EXCEPT______

Production of Energy

What is the primary function of cellular respiration?

To regenerate ATP

Which of the following is NOT a function of low-density-lipoproteins (LDLs)?

Transport cholesterol from the peripheral tissues to the liver (LDLs assist in the storage of cholesterol when supply exceeds demand, make cholesterol available to tissue cells for hormone synthesis, and make cholesterol available to tissue cells for membrane formation)

The most abundant dietary lipids are ______.

Triglycerides

For use as fuel, all food carbohydrates are eventually transformed into glucose

True

High levels of HDLs are considered good

True

It would Not be healthy to eliminate All fats from your diet because they serve a useful purpose in maintaining the body

True

Triglycerides and cholesterol do NOT circulate freely in the bloodstream

True