What 3 things does insulin do?
What will be an ideal response?
(1) it promotes the use of glucose as the primary source of energy by the body;
(2) it promotes the conversion of blood borne fuels to forms that can be stored: glucose to glycogen and fat and amino acids to proteins; and
(3) it promotes the storage of glycogen in liver and muscle, fat in adipose tissue, and proteins in muscle
In short, the function of insulin during the cephalic phase is to lower the levels of blood borne fuels, primarily glucose, in anticipation of the impending influx; and its function during the absorptive phase is to minimize the increasing levels of blood borne fuels by utilizing and storing them
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Steroid hormones bind to receptors inside the cell and alter their conformation. The hormone-receptor complex is then transported into the nucleus, where it can directly affect gene expression. To get from the location where the receptor binds the hormone to its site of action, the hormone-receptor complex must _____.
A) undergo another conformational change B) become water soluble by binding to a carrier molecule C) be transported through the nuclear pore complex D) enter the smooth endoplasmic reticulum
Which of the following statements about alcohol is false?
a. Alcohol abuse is responsible for more than 30% of all traffic fatalities. b. A typical 170lb male can reach the legal level of intoxication by consuming four drinks in one hour. c. Nearly one of every three high school students experiences negative consequences from alcohol use. d. Coffee can be used to counteract the drowsiness and depressive effects of alcohol consumption. e. Fetal alcohol syndrome is the leading cause of preventable mental retardation in the United States.
Several new tetraploid species of a plant called salsify (Tragopogon) have arisen in western North America. These new species each arose from a diploid species that went through the process of allopolyploidy. This mode of speciation is a type of ________ and it occurs ________.
A. sympatric speciation; very slowly B. sympatric speciation; almost instantaneously C. allopatric speciation; almost instantaneously D. allopatric speciation; very slowly E. adaptive radiation; very slowly
The nervous system integrates with the endocrine system to control hormone secretion.
Answer the following statement true (T) or false (F)