The function of the goblet cells is to ________.
A) absorb nutrients from digested food and store them for future use
B) produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion
C) secrete buffers in order to keep the pH of the digestive tract close to neutral
D) provide protection against invading bacteria and other disease-causing organisms that enter the digestive tract in food
B) produce mucus that protects parts of the digestive organs from the effects of powerful enzymes needed for food digestion
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Classifying joints as synarthrotic, amphiarthrotic, or diarthrotic represents
A. the degree of movement possible at the joint. B. the number of bones that the joint affects. C. location in the body. D. the composition of the joint.
The brachiocephalic trunk delivers blood to
A) the left arm. B) the right arm. C) the left arm and neck. D) the right arm and neck. E) the right arm, head and neck.
Which of the following is not associated with an extracellular chemical binding with a membrane-bound receptor?
a. Decreased activity within a certain cell b. Activation of an ATPase c. A change in shape of a transmembrane protein d. Increased activity within a certain cell e. Opening of a sodium channel that allows Na+ to diffuse out of the cell
The stage at which chromosomes aggregate along the equator of a cell is ________.
A. prophase B. interphase C. telophase D. anaphase E. metaphase