Answer the following statements true (T) or false (F)
1. Friedrich Wöhler refuted the scientific concept of vitalism during the early 1800s by proving that organic molecules could be synthesized outside a living organism.
2. Since carbon and hydrogen share similar electronegativities they will form nonpolar molecules when combined.
3. Macromolecules such as lipids and carbohydrates are produced from simple subunits through condensation reactions.
4. The sole function of carbohydrates is to serve as energy stores.
1. TRUE
2. TRUE
3. TRUE
4. FALSE
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A population of deer is sampled. 25 deer are caught and tagged. Two months later, the researchers return and find that
4 of the 16 deer they observe have tags. This would suggest a total population size of what number? Explain your answer. What will be an ideal response?
The second messenger for the hormone mechanism in the accompanying figure is:
a. ATP. b. G protein. c. cAMP. d. calmodulin. e. Ca2+.
An endocrine gland is
A. required for remodeling bone. B. restricted to the production of growth factors. C. where neuronal signals are generated. D. the site at which hormones are produced and released into the blood.
Which type of vascular tissue conducts carbohydrates?
A. sclereids B. collenchyma cells C. xylem D. phloem E. fibers