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Grana and stroma lamella occur in...

Grana and stroma lamella occur in

A

Ribosome

B

Chloroplast

C

Mitochondria

D

Golgi body

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**Step-by-Step Text Solution:** 1. **Identify the Structures**: Grana and stroma lamellae are structures found within chloroplasts, which are organelles responsible for photosynthesis in plant cells. 2. **Understanding Grana**: Grana are stacks of thylakoids, which are disc-like structures that contain chlorophyll. They are the site of the light-dependent reactions of photosynthesis. 3. **Understanding Stroma**: The stroma is the fluid-filled space surrounding the grana within the chloroplast. It is the site of the light-independent reactions (Calvin cycle) of photosynthesis. 4. **Function of Grana**: The primary function of grana is to capture light energy and convert it into chemical energy in the form of ATP and NADPH during the light reactions. 5. **Function of Stroma**: The stroma uses the ATP and NADPH produced in the grana to convert carbon dioxide into glucose during the dark reactions (Calvin cycle). 6. **Conclusion**: Therefore, grana and stroma lamellae occur in chloroplasts, which are essential for the process of photosynthesis in plants. ---
**Step-by-Step Text Solution:** 1. **Identify the Structures**: Grana and stroma lamellae are structures found within chloroplasts, which are organelles responsible for photosynthesis in plant cells. 2. **Understanding Grana**: Grana are stacks of thylakoids, which are disc-like structures that contain chlorophyll. They are the site of the light-dependent reactions of photosynthesis. 3. **Understanding Stroma**: The stroma is the fluid-filled space surrounding the grana within the chloroplast. It is the site of the light-independent reactions (Calvin cycle) of photosynthesis. ...
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Knowledge Check

  • Grana and stroma lamellae occur in

    A
    Chloroplast
    B
    Ribsomes
    C
    Golgi bodies
    D
    Mitochondria

  • Grana and stroma lamellae are the parts of :–

    A
    Mitochondria
    B
    Chloroplast
    C
    Endoplasmic reticulum
    D
    Vacuoles

  • In stroma -

    A
    Enzymatic reactions incorporate `CO_(2)` into the plant leading to ATP and `NADH_(2)` formation.
    B
    Enzymatic reactions incorporate `CO_(2)` into plant leading to the synthesis of sugar, which in turn forms starch
    C
    Light energy is captured to form glucose
    D
    ATP and `NADPH_(2)` are splitted and `H_(2)`O and `O_(2)` released

    • Similar Questions

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    Within the chloroplast, there is membranous system consisting of grana stroma lamellae fluid stroma Choose the correct option.

    Light reaction in stroma lamellae of chloroplast results in the production of

    Middle lamella occurs

    Which of the following statements are correct ? Light reaction occurs in stroma. Light reaction occurs in grana. Dark reaction occurs in stroma. Dark reaction occurs in grana. Choose the correct option.

    Assertion :- In Stroma lamellae cyclic photophosphorylation is the only mean of ATP synthesis Reason :- In stroma lamellae both PS-II and NADP reductase enzyme are absent.

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