Home
Class 11
BIOLOGY
In prokaryotic cells, ribosomes are pres...

In prokaryotic cells, ribosomes are present
I. in cytoplasm II. In mitochondria III. In plastids IV. On rough ER

A

I,II,III& IV

B

Except I

C

I only

D

I, II only

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question about where ribosomes are present in prokaryotic cells, we can analyze each option step by step: 1. **Cytoplasm**: - Prokaryotic cells, such as bacteria, contain ribosomes that are present in the cytoplasm. These ribosomes are known as 70S ribosomes, which are smaller than the 80S ribosomes found in eukaryotic cells. Therefore, this statement is **true**. 2. **Mitochondria**: - Mitochondria are organelles found in eukaryotic cells, not in prokaryotic cells. Prokaryotes do not have membrane-bound organelles, including mitochondria. Thus, this statement is **false**. 3. **Plastids**: - Plastids are also organelles found in plant cells (eukaryotic) and are involved in processes like photosynthesis. Prokaryotic cells do not contain plastids. Therefore, this statement is **false**. 4. **On rough ER**: - The rough endoplasmic reticulum (Rough ER) is a membrane-bound organelle found in eukaryotic cells and is involved in protein synthesis. Prokaryotic cells do not have a rough ER. Thus, this statement is **false**. **Final Conclusion**: Ribosomes in prokaryotic cells are only present in the cytoplasm. ### Summary of the Answer: - Ribosomes are present in prokaryotic cells only in the cytoplasm (Option I is true). Options II, III, and IV are false.
Promotional Banner

Similar Questions

Explore conceptually related problems

In prokaryotes cells, ribosomes are present

Which type of ribosomes are present in prokaryotic cells?

Reserve material in prokaryotic cells are stored in the cytoplasm in the form of

Read the following statements and identify the correct option given I. In prokaryotic cell, the nuclear membrane , chloroplasts, mitochondria , microtubules and different kinds of pili are absent , II. In eukaryotic cell, the nuclear membranes, chloroplasts, mitochondria and pili are present . III. In prokaryotic cell, the ribosomes are of 70 'S' type and in mitochondria of eukaryotic animal cell, the ribosomes are of 80 'S' type

Which parts of a cell contain ribosomes ? I. Chloroplast II. Mitochondrion III. Nucleus IV. Cytoplasm

The main difference between prokaryotic and eukaryotic cell is that in the prokaryotic cell there is no I.Nucleus with a nuclear membrane. II. Mitochondria and chloroplasts. III. Cell wall. IV. Genetic material.

Bacterial cell contains I. 70S ribosomes II. 80S ribosomes III. plasmids IV. mitochondria

Which is correct option amongst the following statements ? a. Nuclear membrane, chloroplasts, mitochondria, microtubules and pili are absent in prokaryotic cells b. Nuclear membrane, chloroplasts, mitochondria, microtubules and pili are present in eukaryotic cells c. Ribosomes are 70S in prokaryotic cells, chloroplasts and mitochondria. They are 80S in animal cells.

Ribosomes are essential for protein synthesis, but they are present in mitochondria and plastids, the sites of respiration and photosynthesis. What is the role of ribosomes in these organelles?

Read the following statements: i. Membrane-bounded inclusion bodies are not found in prokaryotic cells. ii. Ribosomes are the site of protein synthesis. iii. Pili are the surface of the bacteria which may play a role in motility . iv. The cell membrane of prokaryotes is structurally similar to the eukaryotes. Choose the option with the correct statements.