Plasmodesmata are most similar to ____
a. gap junctions in animal cells
b. tight junctions in bacteria
c. basement membranes in animal cells
d. adhering junctions in heart muscle
e. both tight junctions in bacteria and adhering junctions in heart muscle
ANSWER: a
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An ecosystem includes ________ along with ________
A) macroorganisms / microorganisms B) living organisms / their chemical and physical environments C) pathogenic organisms / non-pathogenic organisms D) single celled organisms / multi-cellular organisms
Among Haemophilus influenzae strains, group designations (e.g., type b) are based on:
a. flagellar antigens. b. capsular characteristics. c. cell wall antigens. d. infectious capabilities.
Which ethical dilemma may arise from the application of pharmagogenomics?
a. The use of embryonic stem cells for gene therapy. b. The discovery of a gene that predicts an unfavorable drug response in an individual, for whom there are no alternative treatments available. c. The use of vaccination to prevent diseases. d. The use of blood transfusions to treat diseases. e. The introduction of foreign genes to restore loss of vital gene function in a patient with an infectious disease.
You are taking a lab practical exam, and one station has pins in various internal structures of a bisected mammalian heart. You can orient yourself without picking up and examining the exterior of the heart because
A. the width of the external wall of the right ventricle is thicker than all the other chamber walls. B. the width of the external wall of the left ventricle is thicker than all the other chamber walls. C. the width of the external wall of the left atrium is thicker than all the other chamber walls. D. the width of the external wall of the right atrium is thicker than all the other chamber walls. E. the ascending aorta exits from the right ventricle. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about the structure of the mammalian heart? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?