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
