What is photosynthetic prokaryotic cell?
Prokaryotic photosynthetic organisms have infoldings of the plasma membrane for chlorophyll attachment and photosynthesis (Figure 1). It is here that organisms like cyanobacteria can carry out photosynthesis. Figure 1 A photosynthetic prokaryote has infolded regions of the plasma membrane that function like thylakoids.
What is the function of the lamellae?
In fishes, gill lamellae are used to increase the surface area between the surface area in contact with the environment to maximize gas exchange (both to attain oxygen and to expel carbon dioxide) between the water and the blood.
What are Thylakoid lamellae?
Thylakoid membranes are actually a system of lamellar membranes working together, and are differentiated into different lamellar domains. This lamellar system allows plants to convert light energy into chemical energy.
What structures are found in photosynthetic prokaryotes?
Some prokaryotic cells, namely cyanobacteria and photosynthetic bacteria, have membrane structures that enable them to perform photosynthesis. These structures consist of an infolding of the plasma membrane that encloses photosynthetic pigments such as green chlorophylls and bacteriochlorophylls.
Why would a photosynthetic bacteria have different pigments?
Different photosynthetic organisms use different mixtures of photosynthetic pigments, which increase the range of the wavelengths of light an organism can absorb. The light-dependent reactions of photosynthesis convert solar energy into chemical energy, producing ATP and NADPH or NADH to temporarily store this energy.
Where are photosynthetic pigments found in bacteria?
chloroplasts
2. Photosynthetic pigments are light-harvesting molecules found in the thylakoid membranes of chloroplasts. They capture the light energy necessary for photosynthesis.
What is the meaning of lamellar?
Definition of lamellar 1 : composed of or arranged in lamellae. 2 : having the form of a thin plate lamellar armor.
What are the cells in lamellae called?
Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.
Where are photosynthetic pigments?
the chloroplast
The thylakoid membranes within the chloroplast are the site of the photosynthetic pigments and electron transfer components used to make energy from photosynthesis. The non-membrane space within the chloroplast is called the stroma; this is where photosynthetic energy is used to convert CO2 into sugars.
What is lamellae in chloroplast?
A thylakoid or lamellae is a membrane-bound compartment inside chloroplasts. It consists of a thylakoid membrane surrounding a thylakoid lumen. It forms the stacks of disks referred to as grana and its single functional compartment is called as granum. It is the site for the light reaction in photosynthesis.
Where is chlorophyll found in photosynthetic prokaryotic cell?
The chlorophyll in photosynthetic prokaryotic bacteria is associated with membranous vesicles but not with plastids.