What is the difference between grana and stroma

Chlorophyll and other photosynthetic pigments are held by membrane proteins on the surface of the thylakoid. They are organized into photosystem 1 and 2 on the thylakoid membrane.

Stroma refers to a colorless jell-like matrix of the chloroplast in which the dark reaction of photosynthesis takes place. Enzymes required for the dark reaction are embedded in the stroma. Stroma surrounds the grana. In the stroma, carbon dioxide and water are used in the production of simple carbohydrates by using the light energy trapped by light reaction.

Stroma and grana of a chloroplast are shown in figure 2. Figure 2: Structure of a Chloroplast. Dark reaction of photosynthesis is also called the Calvin cycle. The three stages of the Calvin cycle are carbon fixation, reduction reactions, and RuBP regeneration.

Grana: Grana refers to the stacks of thylakoids embedded in the stroma of a chloroplast. Stroma: Stroma refers to a colorless jell-like matrix of chloroplast in which the dark reaction of photosynthesis takes place. Grana: Grana are the disk-like plates in the stroma. Stroma: Stroma is the jell-like matrix of the chloroplast.

Grana: Grana consist of different pigments such as chlorophyll-a, chlorophyll-b, carotene, and xanthophyll. Allen JF Protein phosphorylation in regulation of photosynthesis. Biochim Biophys Acta : — Google Scholar. Anderson JM Insights into the consequences of grana stacking of thylakoid membranes in vascular plants: a personal perspective.

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It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide. Sign In or Create an Account. Sign In. Advanced Search. Search Menu. Article Navigation. Close mobile search navigation Article Navigation. Volume Article Contents Abstract. Austin, II , Jotham R. Austin, II. Oxford Academic. Andrew Staehelin. Cite Cite Jotham R. Select Format Select format. Permissions Icon Permissions. Open in new tab Download slide. Google Scholar Crossref.

Search ADS. Insights into the consequences of grana stacking of thylakoid membranes in vascular plants: a personal perspective. The dynamic photosynthetic membrane and regulation of solar energy conversion.

Composition of the photosystems and chloroplast structure in extreme shade plants. Lateral heterogeneity in the distribution of chlorophyll-protein complexes of the thylakoid membranes of spinach chloroplasts.

Dynamics of photosystem II: a proteomic approach to thylakoid protein complexes. Quantitative analysis of changes in spatial distribution and plus-end geometry of microtubules involved in plant-cell cytokinesis. Differences in chlorophyll-protein complexes and composition of polypeptides between thylakoids from bundle sheaths and mesophyll cells in maize. Structural modifications in the lamellar system of isolated Zea mays chloroplasts under different ionic conditions.

The ontogenic assembly of intra-chloroplast lamellae viewed in 3-dimensions. Kinetics of cation-induced changes of photosystem II fluorescence and of lateral distribution of the two photosystems in the thylakoid membrane of pea thylakoids. Thylakoid membrane remodeling during state transitions in Arabidopsis.

Supramolecular organization of thylakoid membrane proteins in green plants. The main difference between grana and stroma is that grana are the disk-like plates embedded in the stroma whereas stroma is the homogeneous, jell-like matrix of the chloroplast.

Grana are connected to each other by intergranal lamellae. They contain different pigments such as chlorophyll-a, chlorophyll-b, carotene, and xanthophyll. Light reaction of photosynthesis occurs in the grana. Dark reaction of photosynthesis occurs in the stroma. Upvote Astitva Puri Jul 05, The main difference between grana and stroma is thatgrana are the disk-like plates embedded in the stroma whereas stroma is the homogeneous, jell-like matrix of the chloroplast.

Upvote 3. Karanam Akhil replied Jul 05, Astitva Puri replied Jul 05, Shanaya Afreen Jul 07, Stroma is the homogenous matrix present within the membrane of chloroplast. Grana is the disc-like plates embedded in the stroma of the chloroplast. The grana of the chloroplast consists of pigment system made up of chlorophyll-a, chlorophyll-b, carotine and xanthophyll while the stroma contains relevant enzymes required for the photosynthesis as well as DNA, RNA and cytochrome system.

Upvote 2. Kunal Rathore Jul 06, Mehak Jaju Jul 06,