In white blood cells, what contributes to phagocytes?
Lysosomes
Vacuoles
Endoplasmic reticulum
Golgi apparatus
The Correct Answer is A
Lysosomes contribute to phagocytosis in white blood cells by fusing with the phagosome, which is the membrane-bound vesicle that engulfs the foreign particle or pathogen during phagocytosis. The lysosomes contain hydrolytic enzymes that can break down the engulfed material, thereby helping to destroy the invading pathogen. Additionally, lysosomes can also release reactive oxygen species and other antimicrobial molecules that further aid in the destruction of the pathogen.
Vacuoles, endoplasmic reticulum, and Golgi apparatus do not directly contribute to phagocytosis in white blood cells. Vacuoles are used for storage in cells, while the endoplasmic reticulum and Golgi apparatus are involved in protein synthesis and processing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
During anaerobic respiration, some living systems use an organic molecule as the final electron acceptor. Processes that use an organic molecule to regenerate NAD+ from NADH are collectively referred to as fermentation. One type of fermentation is lactic acid fermentation, which produces lactic acid (lactate) and NAD+1. The accumulation of lactic acid can lead to a burning sensation in muscles during intense exercise.
Correct Answer is A
Explanation
The ureters are long, narrow tubes that transport urine from the kidneys to the urinary bladder. Each kidney has one ureter, which emerges from the renal pelvis (a funnel-shaped cavity in the kidney) and descends downward, passing behind the peritoneum and along the back of the abdominal cavity. The ureters then enter the bladder through small openings at the base of the bladder, where they join with the urethra, a tube that carries urine out of the body.
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