Probably the most abundant carbohydrate on Earth, this unbranched chain of ?-glucose subunits is the
primary structural fiber in plant cell walls.
a. chitin
b. amylopectin
c. cellulose
d. glycogen
e. amylose
C
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Gram stain smears of urethral exudates for the detection of Neisseria gonorrhoeae are highly specific
Indicate whether the statement is true or false.
A young woman decides to become a vegan and suddenly cuts out all animal products from her diet. She also makes the decision to no longer eat sugar. This will result in:
A. both more bacteroidetes and fewer firmicutes being present in her intestines. B. both more firmicutes and fewer bacteroidetes being present in her intestines. C. fewer bacteroidetes being present in her intestines. D. more firmicutes being present in her intestines. E. no change in the composition of her intestinal bacteria.
How would you best explain the existence of a mountain range that has abundant conifer trees, ferns, and mosses on the east side, but only sparse shrubby plants on the west side?
A. Adiabatic cooling leads to temperature gradients that produce the differing plant communities. B. Differences in solar intensity produce the differing plant communities. C. Precipitation differences due to a rain shadow on the west side produce the differing plant communities. D. Differences in the specific heat of the two sides of the mountain produce the differing plant communities.
When glucose monomers are joined together by gycosidic linkages to form a cellulose polymer, the changes in free energy, total energy, and entropy are as follows:
a. -?G, -?H, -?S b. -?G, +?H, +?S c. +?G, +?H, -?S d. +?G, +?H, +?S e. +?G, -?H, -?S