High protein (low carbohydrate) diets have become popular in recent years. Based on what you've learned about metabolism and the body's energy needs, explain what might be some of the disadvantages of this type of diet.
What will be an ideal response?
Low carbohydrate diets shift the body to a fasting mode because glucose is needed for the brain, central nervous
systems, and red blood cells. After glycogen stores have been depleted, the body will convert protein and fats into
glucose and ketone bodies to provide the energy needed. The disadvantages of this shift are excess ketone bodies
can seriously disrupt the body's pH balance (lead to ketosis) and loss of protein from body tissue (this occurs even
when abundant protein from food is provided).
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The glial cell that helps to circulate cerebrospinal fluid is the
A. astrocyte. B. ependymal cell. C. neurolemmocyte. D. microglial cell. E. oligodendrocyte.
Answer the following statements true (T) or false (F)
1. Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen than does skeletal muscle. 2. Anastomoses among coronary arterial branches provide collateral routes for blood delivery to the heart muscle 3. Congestive heart failure means that the pumping efficiency of the heart is depressed so that there is inadequate delivery of blood to body tissues 4. Tissues damaged by myocardial infarction are replaced by connective tissue. 5. The left side of the heart pumps the same volume of blood as the right.
Coding of sensory information may result from
a. the intensity of the stimuli b. the location of the stimuli c. they stimulus modality d. all of the above e. none of the above
Which are monoamines? select all that apply.
a) norepinephrine b) insulin c) dopamine d) glucagon