During phagocytosis, intracellular digestion begins as soon as the phagosome is formed.

Answer the following statement true (T) or false (F)


False

Biology & Microbiology

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What will be an ideal response?

Biology & Microbiology

Your friend Joe recently visited the doctor for steroid injections into his knee to reduce swelling due to a previous knee injury. Within a couple of days, he had an infection caused by Pseudomonas, a very pathogenic and drug resistant bacterium. Luckily, Joe went to the doctor immediately and received antibiotics. The doctor tells him that the same problem has occurred to many other people across the United States. Predict the most likely cause of this situation.

A. The needles were re-used and already contaminated before being used on the patients. B. The steroid was contaminated at the production plant, so all batches of that drug made at that plant were contaminated with the bacterium. C. The bacterium is normally on the skin of people, so can easily access the patient's blood during the needle stick. D. The staff giving the steroid injections did not use proper aseptic technique.

Biology & Microbiology

Histamine causes all of the following except

A. pruritis and headache. B. constriction of smooth muscle of bronchi and the intestine. C. wheal and flare reaction in skin. D. relaxation of vascular smooth muscle. E. increased sensitivity to pain.

Biology & Microbiology

Which of the following best describes a dead cell as a system?

a. It is a closed system that exchanges energy with its surroundings. b. It is an open system that exchanges energy with its surroundings. c. It is an isolated system that does not exchange energy or matter with its surroundings. d. It is a closed system that

Biology & Microbiology