Organisms usually have only a single transport system for any nutrient.
Answer the following statement true (T) or false (F)
False
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Identify and define the categories of food perishability. Compare the perishability of sugar, milk, and hard cheeses (such as parmesan)
What will be an ideal response?
Which of the following statements about myoglobin is false?
A. When fully saturated, myoglobin carries more O2 molecules than hemoglobin. B. Myoglobin is found within vertebrate muscle cells. C. Myoglobin has a greater affinity for O2 than hemoglobin. D. Myoglobin binds O2 more tightly than hemoglobin. E. None of the answer options is false.
An organism that causes infection as a result of a dog or cat bite was tested for catalase, resulting in a positive reaction. What could be the possible source of the error?
a. The catalase reagent could be expired. b. This organism is normally negative for catalase; therefore a mutation may have occurred. c. A false-positive result occurred because of the catalase production of the red blood cells in the 5% sheep blood agar. d. No error is present. This organism is cata-lase-positive.
Sorting of hormones into regulated secretory vesicles in the trans-Golgi network involves
A) mannose-6-phosphorylation. B) formation of large aggregates. C) a KDEL receptor. D) a zymogen granule receptor. E) O-linked glycosylation