The difference between elastic and reticular fibers is that only elastic fibers:a
are branched.
b. stretch.
c. are made of collagen.
d. form the supporting framework for organs.
e. have a high tensile strength.
B
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In the figure above, representing transcription, the item labeled "C" is
a. the nontemplate strand. b. RNA-DNA hybrid. c. the template strand. d. DNA double helix. e. the RNA copy.
Which one of the following molecules is stored in adipose tissue and serves as an important source of energy for the human body?
A) glucose B) steroids C) glycogen D) triglycerides E) phospholipids
The plasma membrane is composed of a phospholipid bilayer and associated proteins. What else is commonly found in the plasma membranes of animal cells?
A) amino acids B) ethanol C) cholesterol D) nucleic acids
The oxygen required by cellular respiration is reduced and becomes part of which molecule?
a. ATP b. H2O c. pyruvate d. CO2