Which of the following organelles is responsible for modifying, sorting and packaging proteins and lipids?
Golgi apparatus.
Mitochondria.
Ribosomes.
Endoplasmic reticulum
The Correct Answer is A
The Golgi apparatus is a membrane-bound organelle that is responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations.
Choice B is incorrect because mitochondria are responsible for energy production.
Choice C is incorrect because ribosomes are responsible for protein production.
Choice D is incorrect because the endoplasmic reticulum is responsible for lipid production and protein production, but not for modifying, sorting and packaging proteins and lipids.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Transcription initiation is the term used to describe the process of synthesizing RNA from a DNA template strand.
Choice A is incorrect because a complementary strand of a DNA sequence refers to the strand that is complementary to the original DNA strand.
Choice B is incorrect because replication fork formation refers to the process of separating the two strands of DNA during replication.
Choice D is incorrect because Okazaki fragment synthesis refers to the synthesis of short fragments of DNA on the lagging strand during replication.
Correct Answer is C
Explanation
Immunologic memory is the hallmark of adaptive immunity.
Immunologic memory enables the host to mount a more rapid and efficient immune response upon subsequent exposure to the antigen.
Choice A is incorrect because rapid recruitment of immune cells to sites of infection and inflammation is a characteristic of innate immunity.
Choice B is incorrect because antigen-independent defense mechanisms are characteristic of innate immunity.
Choice D is incorrect because non-specific host-defence mechanisms are characteristic of innate immunity.
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