Which is correct about the concerned organelles

Options

A. Elaioplasts store starch whereas aleuroplasts store proteins
B. Acrocentric chromosomes have only one arm
C. The core of cilium or flagellum is the basal body
D. Membranous extension into cytoplasm in cyanobacterium which contains pigments are called chromotophores.

Answer

To solve the question "Which is correct about the concerned organelles?", we will analyze each option provided in the question and determine their correctness based on our understanding of cell biology.

### Step-by-Step Solution:

1. **Analyze the First Option:**
- The statement claims that "Elioplast will store starch whereas Eluroplast will store the proteins."
- **Correction:** Elioplasts are actually associated with the storage of lipids, not starch. Starch is stored in amyloplasts, which are a type of plastid specifically for carbohydrate storage. Therefore, this statement is incorrect.

2. **Analyze the Second Option:**
- The statement claims that "acrocentric chromosomes have only one arm."
- **Correction:** Acrocentric chromosomes have a centromere that is located near one end, resulting in one long arm and one short arm. Thus, they actually have two arms, making this statement incorrect as well.

3. **Analyze the Third Option:**
- The statement claims that "the core of the cilium or the flagellum is the basal body."
- **Correction:** The basal body is indeed a structure that anchors the cilium or flagellum, but the core structure where microtubules are arranged is called the axoneme. Therefore, this statement is also incorrect.

4. **Analyze the Fourth Option:**
- The statement claims that "the membranous extension into the cytoplasm in case of cyanobacteria which contain pigment are called chromatophores."
- **Correction:** This statement is correct. In cyanobacteria, chromatophores are indeed the membranous extensions that contain pigments for photosynthesis.

### Conclusion:
After analyzing all the options, the only correct statement is from the fourth option regarding chromatophores in cyanobacteria.

### Final Answer:
The correct statement is: "The membranous extension into the cytoplasm in case of cyanobacteria which contain pigment are called chromatophores."

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