Answer the following statements true (T) or false (F)
1. All organic compounds contain carbon.
2. A dipeptide can be broken into two amino acids by dehydration synthesis.
3. The pH of body fluids must remain fairly constant for the body to maintain homeostasis.
4. Mixtures are combinations of elements or compounds that are physically blended together but are not bound by chemical bonds.
5. Buffers resist abrupt and large changes in the pH of the body by releasing or binding ions.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. TRUE
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Dense fibrous connective tissue is to a suture as a periodontal ligament is to a(n)
A) amphiarthrosis. B) syndesmosis. C) synostosis. D) synchondrosis. E) gomphosis.
Which fetal shunt bypasses the lungs by directly connecting the right atrium and the left atrium?
A) ligamentum arteriosum B) umbilical vein C) foramen ovale D) ductus arteriosus E) ductus venosus
Match the pathological condition with its cause.A. Decreased amounts of thyroid hormoneB. Increased amounts of thyroid hormoneC. Abnormally low levels of aldosterone and cortisolD. Increased levels of growth hormone in adultsE. Lack of ADHAddison disease
Fill in the blank(s) with the appropriate word(s).
The villi and microvilli are the most important structures that mediate the nutrients absorption. They are mainly located in the:
a. Esophagus b. Stomach c. Small intestine d. Colon e. Rectum