Answer the following questions true (T) or false (F)
1. During an infection with Listeria, an intracellular bacterium, APCs will present antigen on MHC II molecules.
2. When a T cell's CD95L binds to the CD95 on a target cell, antibodies are formed.
3. Edward Jenner was the physician who first used cowpox to vaccinate individuals against smallpox.
1. FALSE
2. FALSE
3. TRUE
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Semen contains
(a) sperm. (b) the secretions of sex accessory glands. (c) eggs. (d) both a and b.
What other information is related to the question? Which information is most useful?
What will be an ideal response?
When comparing fermentation and anaerobic respiration, which statement would be true?
A. Fermentation and anaerobic respiration are the same. B. Both anaerobic respiration and fermentation use phosphorylation to make ATP. C. Anaerobic respiration and fermentation both employ the electron transport system. D. Fermentation produces carbon dioxide, whereas anaerobic respiration does not.
Bone cells are called ________ while cartilage cells are called ________.
A. lacunae, osteocytes B. chondrocytes, lacunae C. osteoblasts, chondrocytes D. osteocytes, chondrocytes E. osteocytes, osteoblasts