As plants like celery and carrots mature, their cell walls increase in _____ concentration, resulting in a tough, stringy texture.
A. cellulose
B. gums
C. hemicellulose
D. lignin
E. pectin
F. All of these are correct.
Answer: D
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The FITT principle is
A) the principle that a good physical fitness program should be based on frequency, intensity, time, and type of activity. B) a method to determine fitness based on flexibility, interest, training, and technique. C) a method to determine your fitness level based on your target heart rate. D) the level of fitness one should achieve according to one's age.
List and define 5 major roles of proteins in the body
What will be an ideal response?
The non-alcoholic components found in red wine, brandy, and whiskey that may cause some of the symptoms of a hangover are called
A) oxidants. B) teratogens. C) enzymes. D) congeners.
The human body can absorb some of the ________ that's made by intestinal bacteria.
A. vitamin K B. riboflavin C. vitamin A D. thiamin