Search results
Results from the WOW.Com Content Network
Chloroplasts have their own genome, which encodes a number of thylakoid proteins. However, during the course of plastid evolution from their cyanobacterial endosymbiotic ancestors, extensive gene transfer from the chloroplast genome to the cell nucleus took place. This results in the four major thylakoid protein complexes being encoded in part ...
Chloroplasts, containing thylakoids, visible in the cells of Rosulabryum capillare, a type of moss. A chloroplast (/ ˈ k l ɔːr ə ˌ p l æ s t,-p l ɑː s t /) [1] [2] is a type of organelle known as a plastid that conducts photosynthesis mostly in plant and algal cells.
Components of a typical chloroplast. 1 Granum 2 Chloroplast envelope. 2.1 Outer membrane 2.2 Intermembrane space 2.3 Inner membrane. 3 Thylakoid. 3.1 Thylakoid space 3.2 Thylakoid membrane. 4 Stromal thylakoid 5 Stroma 6 Nucleoid (DNA ring) 7 Ribosome 8 Plastoglobulus 9 Starch granule
Within the envelope membranes, in the region called the stroma, there is a system of interconnecting flattened membrane compartments, called the thylakoids.The thylakoid membrane is quite similar in lipid composition to the inner envelope membrane, containing 78% galactolipids, 15.5% phospholipids and 6.5% sulfolipids in spinach chloroplasts. [3]
Palisade cells contain a high concentration of chloroplasts, particularly in the upper portion of the cell, making them the primary site of photosynthesis in the leaves of plants that contain them. Their vacuole also aids in this function: it is large and central, pushing the chloroplasts to the edge of the cell, maximising the absorption of ...
As an example, a yeast vacuole is normally acidified by proton transporters on the membrane. A third role is to establish specific locations or cellular addresses for which processes should occur. For example, a transcription factor may be directed to a nucleus, where it can promote transcription of certain genes. In terms of protein synthesis ...
The chloroplasts of the bundle sheath cells convert this CO 2 into carbohydrates by the conventional C 3 pathway. There is large variability in the biochemical features of C4 assimilation, and it is generally grouped in three subtypes, differentiated by the main enzyme used for decarboxylation ( NADP-malic enzyme , NADP-ME; NAD-malic enzyme ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate