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Chapter 4: Problem 1

The RNA components of ribosomes are synthesized in the ________. a. cytoplasm b. nucleus c. nucleolus d. endoplasmic reticulum

Short Answer

Expert verified
Answer: The RNA components of ribosomes are synthesized in the nucleolus.

Step by step solution

01

Understand Ribosomes and RNA components

Ribosomes are cellular structures that play a crucial role in protein synthesis. They consist of two subunits, one large and one small, both of which contain RNA (known as ribosomal RNA or rRNA) and proteins.
02

Analyze Option A (Cytoplasm)

The cytoplasm is the part of the cell that lies outside the cell nucleus, containing most of the cell's metabolic reactions and organelles. While ribosomes are found in the cytoplasm, they are not synthesized there. So, option A is not correct.
03

Analyze Option B (Nucleus)

The nucleus is the part of the cell that contains the genetic material. Although it plays a role in the generation of rRNA, synthesis of ribosomal RNA doesn't take place inside the nucleus. Therefore, option B is also not correct.
04

Analyze Option C (Nucleolus)

The nucleolus is a small region within the nucleus, known for its involvement in ribosome production. This is where ribosomal RNA components are synthesized as well as where the assembly of ribosomal subunits occurs. So, option C is the correct answer.
05

Analyze Option D (Endoplasmic reticulum)

The endoplasmic reticulum is an organelle involved in protein and lipid synthesis, but it does not participate in synthesizing the RNA components of ribosomes. Hence, option D is not correct.
06

Conclusion

The RNA components of ribosomes are synthesized in the nucleolus. Therefore, the correct answer is option C.

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Most popular questions from this chapter

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