Which one of the following is a true statement comparing phospholipids and triacylglycerols (fats and oils)?

A. Both molecules contain a phosphate group.
B. Triacylglycerols may be saturated or unsaturated, but all phospholipids are saturated.
C. Phospholipids are the primary storage form for fats in our bodies.
D. Phospholipid molecules have a distinctly polar "head" and a distinctly nonpolar "tail," whereas triacylglycerols are predominantly nonpolar.
E. In nature, phospholipids occur in fused rings (sterol form), whereas triacylglycerols maintain a straight-chain form.


Ans: D. Phospholipid molecules have a distinctly polar "head" and a distinctly nonpolar "tail," whereas triacylglycerols are predominantly nonpolar.

Biology & Microbiology

You might also like to view...

Animal communication involves what type of sensory information?

I) visual II) auditory III) olfactory IV) tactile A) only I and III B) only II and IV C) only II, III, and IV D) only I, II, and III E) I, II, III, and IV

Biology & Microbiology

Match the following items with the correct phrases.

_______1. ____________________ is a virulence factor that is found in (and released from) the cell walls of Gram-negative bacteria. _______2. The molecules on the surfaces of host cells that pathogens are able to recognize and attach to are known as receptors or ____________________. _______3. Molecules on the surfaces of pathogens that are able to recognize and bind to molecules on the surfaces of host cells are known as ligands or ____________________. _______4. ____________________ is also known as “spreading factor.” _______5. ____________________ are toxins that destroy white blood cells. a. adhesins b. endotoxin c. hyaluronidase d. integrins e. leukocidins

Biology & Microbiology

Lactobacillus acidophilus can potentially colonize the intestinal tract

Indicate whether this statement is TRUE or FALSE.

Biology & Microbiology

A plant cell placed in a hypertonic solution will:a

remain unchanged. b. undergo lysis. c. undergo plasmolysis. d. swell slightly. e. become crenated.

Biology & Microbiology