In the final phases of digestion, ____
a. the end products are absorbed only into the blood
b. stomach enzymes finish digestive activity
c. the liver releases digestive enzymes into the duodenum
d. the end products are absorbed across brush border cells
e. large proteins and carbohydrates are absorbed into the blood
ANSWER: d
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The structure between the carpel and stigma is the ____
a. stamen b. sepal c. style d. ovary e. anther
Which of the following items associated with DNA packaging is the thickest?
a. an H2A histone protein b. a nucleosome c. a DNA double helix d. a solenoid
What is the role of van der Waals interactions in biological molecules?
1. Van der Waals interactions are strong bonds that play a major structural role in holding proteins together.
2. Although they are weak bonds, van der Waals interactions involve the sharing of electrons.
3. Van der Waals interactions are important only in water.
4. Although they are weak bonds, van der Waals interactions help to reinforce the three-dimensional shapes of large molecules.
5. Van der Waals interactions are too weak to be significant.
A (furuncle/pimple/sty) is a type of folliculitis characterized by a large, painful, pus-filled nodule
What will be an ideal response?