Plant pathogens that produce chestnut blight, Dutch elm disease, and apple scab belong to which fungal group?
a. Ascomycota
b. Microsporidia
c. Zygomycetes
d. Basidiomycetes
e. Chytrids
Ans: a. Ascomycota
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A large portion (45%) of the human genome is composed of
A. introns. B. exons. C. templates. D. transposons. E. pseudogenes.
An exoenzyme is an extracellular enzyme that may be involved int he breakdown of host defensive barriers or damage to host tissues
a. true b. false
The current view of the fate of the ER during mitosis is that ________.
a) the ER network remains relatively intact during mitosis b) the ER becomes part of the Golgi complex during mitosis c) the ER joins with mitochondria at the beginning of mitosis d) the ER is broken up into small vesicles that reassemble later e) the ER is broken into its component macromolecules during mitosis, but it is built up from scratch after mitosis
?-Glucose is present in potatoes and ?-glucose is present in wood. Both are glucose molecules but one can be used by humans to synthesize ATP and one cannot. Based on this information, what is the best explanation on why humans can only digest one of the glucose types?
A. ?-Glucose and ?-glucose are stereoisomers with OH groups oriented differently. B. ?-Glucose is C6H12O6 and ?-glucose is C5H12O6. C. Only ?-glucose can form polysaccharides. D. ?-Glucose is a chain and ?-glucose is a ring.