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 D
Explanation
A ball and socket joint is a type of synovial joint where the rounded head of one bone fits into the concave socket of another bone, allowing movement in multiple directions. The shoulder joint is a classic example of a ball and socket joint, where the rounded head of the humerus bone fits into the shallow socket of the scapula bone, allowing for a wide range of movements such as flexion, extension, abduction, adduction, and rotation. The ankle joint is a hinge joint, the elbow joint is a hinge joint, and the knee joint is a complex hinge joint.
Correct Answer is C
Explanation
The malleus, incus, and stapes are three small bones, collectively known as the ossicles, located in the middle ear. These bones work together to transmit sound waves from the eardrum to the inner ear, where they are converted into nerve impulses that are then sent to the brain. The malleus is atached to the eardrum, the incus is in between the malleus and the stapes, and the stapes is connected to the inner ear. Together, they form a chain that amplifies the sound waves and transmits them efficiently to the inner ear.
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