Which of the following is correct about alveolar type I and II cells?
A. Alveolar type I cells make up the alveolar membrane and alveolar type II cells produce surfactant.
B. Alveolar type I cells act to clear debris from the alveoli and alveolar type II cells produce mucus.
C. Alveolar type II cells make up the alveolar membrane and alveolar type I cells produce surfactant.
D. Alveolar type I cells produce mucus and alveolar type II cells act to clear debris from the alveoli.
Ans: A. Alveolar type I cells make up the alveolar membrane and alveolar type II cells produce surfactant.
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Which of the following statements best describes interstitial growth?
A) Growth occurs in the lining of the long bones. B) Fibroblasts give rise to chondrocytes that differentiate and form cartilage. C) Unspecialized cells from mesenchyme develop into chondrocytes, which divide and form cartilage. D) Chondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to grow from within.
The movement that brings the tip of the distal phalanx of the thumb into contact with the tip of the distal phalanx of the little finger is termed ________.
Fill in the blank(s) with the appropriate word(s).
Which type of membrane proteins allow cells to identify one another?
A. Receptor proteins B. Channel protein C. Marker molecules D. Carrier proteins E. Enzymes
Discuss the relationship between growth hormone (GH) and insulin-like growth factor (IGF)
What will be an ideal response?