The Casparian strip of the endodermis stops water from the ____ before it reaches the stele
a. symplastic pathway
b. transmembrane and symplastic pathways
c. transmembrane pathway
d. apoplastic, transmembrane, and symplastic pathways
e. apoplastic pathway
E
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Isonicotinic acid hydrazide (INH) is an antibiotic used in the treatment of tuberculosis. It affects the synthesis of
A) mycolic acid. B) linoleic acid. C) globular proteins of the cell membrane. D) DNA transcription.
Which of the following types of chemical linkages is the weakest?
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
Which of the following describes the septum of a fungus?
a. cell wall division between hyphae b. slender, thread-like structures c. a fungal filament composed of cells d. an outer shell that protects the hyphae
Which of the following breakthroughs in mycology was one of the first examples of biotechnology patenting?
a. The development of a reliable strain of brewer’s yeast b. The discovery of penicillin as an antibiotic c. The isolation of the immunosuppressant drug cyclosporin which reduces the risk of infection after an organ transplant d. The use of Penicillium to create the characteristic blue-veined Roquefort cheese from France