Capsules of pathogenic enteric bacteria are virulence factors because they _____.
A) Capture iron from hemoglobin and store it in the bacteria
B) Release hemolysins that destroy red blood cells
C) Produce fimbriae that enable the bacteria to attach to human cells
D) Protect the bacteria from phagocytosis and from antibodies
Ans: D) Protect the bacteria from phagocytosis and from antibodies
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All of the membranes of the eukaryotic cell are in dynamic continuity except for the:
A. mitochondria and chloroplasts. B. endoplasmic reticulum. C. golgi apparatus. D. nuclear membrane.
Which of the following is not a characteristic of a hormone?
A. chemical messenger B. secreted from glands into the blood C. acts on distant target cells D. regulates organ systems E. secreted from glands into the interstitial fluid
The type of fruit that is derived from one flower with many separate carpels is a(n) fruit.
A. axillary B. aggregate C. simple D. double E. multiple
Localization of lesions within a band of skin on one side of the body is a characteristic of the disease (measles/shingles/sporotrichosis)
What will be an ideal response?