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 A
Explanation
Pattern recognition receptors (PRRs) are a class of receptors that can directly recognize the specific molecular structures on the surface of pathogens.
PRRs play a crucial role in the proper function of the innate immune system and are germline-encoded host sensors, which detect molecules typical for the pathogens.
Choice B is incorrect because cytokines are not receptors but rather signaling molecules that regulate immunity.
Choice C is incorrect because chemokines are not receptors but rather signaling molecules that attract immune cells to sites of infection.
Choice D is incorrect because T cells are not receptors but rather white blood cells that assist B cells or directly kill infected cells.
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