Amembranous cell-organelles in animal cells are

Options

A. Ribosomes, vacuole
B. Ribosomes and lysosomes
C. Ribosomes and centromere
D. Centrosome and Ribosomes

Answer

To determine the membranous cell organelles in animal cells, we need to analyze the options given in the question. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the term "membranous"
- The term "membranous" refers to organelles that are surrounded by membranes. In contrast, "non-membranous" organelles do not have a membrane.

### Step 2: Evaluate the options provided
1. **Ribosomes and Vacuoles**:
- Ribosomes are non-membranous organelles, but vacuoles have a membrane (called tonoplast). This option is incorrect.

2. **Ribosomes and Lysosomes**:
- Ribosomes are non-membranous, but lysosomes are membranous organelles. This option is incorrect.

3. **Ribosomes and Centromeres**:
- Ribosomes are non-membranous, but centromeres are not organelles; they are parts of chromosomes. This option is incorrect.

4. **Centrosomes and Ribosomes**:
- Ribosomes are non-membranous, and centrosomes (which consist of centrioles and pericentriolar material) are also non-membranous. This option is correct.

### Step 3: Conclusion
- The correct answer is **Centrosomes and Ribosomes**, as both are non-membranous organelles found in animal cells.

### Final Answer:
The membranous cell organelles in animal cells are **Centrosomes and Ribosomes**.

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