Stroma in the chloroplasts of higher plant contains
(a) Chlorophyll
(b) Light-dependent reaction enzymes
(c) Light-independent reaction enzymes
(d) Ribosomes

Options

A. Chlorophyll
B. Light-independent reaction enzymes
C. Light-independent reaction enzymes
D. Ribosomes

Answer

To answer the question about what the stroma in the chloroplasts of higher plants contains, let's analyze each option step-by-step:

1. **Understanding the Stroma**: The stroma is the fluid-filled space surrounding the thylakoids in chloroplasts. It is where the light-independent reactions (Calvin cycle) of photosynthesis occur.

2. **Evaluating Option (a) Chlorophyll**:
- Chlorophyll is the pigment responsible for capturing light energy, but it is primarily located in the thylakoid membranes, not in the stroma.
- **Conclusion**: This option is incorrect.

3. **Evaluating Option (b) Light-dependent reaction enzymes**:
- The light-dependent reactions occur in the thylakoid membranes, where light energy is converted into chemical energy (ATP and NADPH).
- The enzymes required for these reactions are not found in the stroma.
- **Conclusion**: This option is incorrect.

4. **Evaluating Option (c) Light-independent reaction enzymes**:
- The light-independent reactions, also known as the Calvin cycle, occur in the stroma.
- Enzymes such as RuBisCO (ribulose bisphosphate carboxylase/oxygenase) are present in the stroma and are essential for carbon fixation.
- **Conclusion**: This option is correct.

5. **Evaluating Option (d) Ribosomes**:
- While chloroplasts do contain their own ribosomes, they are not specifically located in the stroma. Ribosomes are found in the stroma but are not a defining component of it in the context of the question.
- **Conclusion**: This option is not the best answer in the context of the question.

**Final Answer**: The correct answer is (c) Light-independent reaction enzymes.