Mastering a&p chapter 2

What organic molecule provides an immediate source of chemical energy within all cells?

ATP

A molecule with the sequence of AUCGUCA should be categorized as ________.

RNA

Which of the following is classified as an inorganic compound?

water

Why are salts referred to as electrolytes?

after salts dissolve in a solution, the resulting ions can conduct an electrical current

What type of chemical reaction is used by liver cells when synthesizing glycogen from glucose?

dehydration synthesis

describe the structure of a nucleotide found in DNA?

deoxyribose sugar, nitrogen-containing base, phosphate group

Disruption of the hydrogen bonds of functional proteins leads to their denaturation.

false

Phospholipids have a hydrophobic region (the "head") and a hydrophilic region (fatty acid chains, or nonpolar "tails").

false

Which of the properties of water is most closely associated with the body's ability to maintain a relatively constant internal temperature?

high heat capacity

What is the main type of lipid found in cellular membranes?

phospholipids

Glycogen and starch are examples of a specific category of carbohydrates called ________.

polysaccarides

In which category of organic molecules would you place compounds that catalyze chemical reactions?

protein

Electrolytes conduct electrical currents in solution.

true

Inorganic compounds lack carbon and tend to be small, simple molecules

true

Water is the single most abundant inorganic compound in the human body.

true

amino acids are the building blocks for protiens.

true