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Grana (Biology)

grana
small particles of chlorophyll in chloroplasts
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...


Grana
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grana A series of stacked thylakoid disks containing chlorophyll; found in the inner membrane of chloroplasts. PICTURE ...

granum pl. grana
(gran-um) [L. grain or seed]
A stacked portion of the thylakoid membrane in the chloroplast. Grana function in the light reactions of photosynthesis.
gravitropism ...

granum (pl grana) /GRAY-nəm, GRAN-əm, GRAW-nəm/ One of the stacks of thylakoids within a chloroplast that convert light into chemical energy.
gravid /GRAV-id/ (1) pregnant; (2) swollen with embryos or eggs.

grana flattened saclike structures inside chloroplasts containing chlorophyll and other photosynthetic enzymes
granite An igneous rock overlying most of the landmasses ...

da Cunha PR, Granadino B, Perondini AL, Sanchez L: Dosage compensation in sciarids is achieved by hypertranscription of the single X chromosome in males. ...

At various places within the chloroplast these are stacked in arrays called grana (resembling a stack of coins).
Four types of protein assemblies are embedded in the thylakoid membranes: ...

A granum (plural grana) is a stack of thylakoids in the chloroplast, an organelle found in plants and eukaryotic algae where photosynthesis takes place. Chloroplasts can have from 10 to 100 grana.
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The thylakoid membrane is folded upon itself forming many disks called grana (singular = granum).
The "cytoplasm" of the chloroplast is called the stroma
The photosynthesis reactions can be broken down into two components: ...

The light reactions of photosynthesis occur in the grana (thylakoid membranes) of the chloroplasts of eukaryotic cells.

Records from the Warring States (481 BC-221 BC), Qin Dynasty (221 BC-207 BC), and Han Dynasty (202 BC-220 AD) provide a picture of early Chinese agriculture which included a nationwide granary system, and widespread use of sericulture.

One individual stack is called a granum, collectively these stacks of discs are called grana. Now one disk within this granum is called a thylakoid, so the grana are made up of stacks of thylakoid membranes.

The flowers are showy, and the fruit is sometimes highly esteemed (see granadilla, and maypop). The roots and leaves are generally more or less noxious, and are used in medicine.

Thylakoids are stacked like pancakes in stacks known collectively as grana. The areas between grana are referred to as stroma. While the mitochondrion has two membrane systems, the chloroplast has three, forming three compartments.

They have pairs of membranes called thylakoids arranged in stacks, each stack being called a granum. Connecting different grana together are inter-granal thylakoids.

The fluid-filled space surrounding the grana is the stroma. Many enzymes needed in photosynthesis are found embedded in the thylakoid membranes and in the stroma.
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thylakoids membranes that make up the grana in chloroplasts; the actual site of photosynthesis within chloroplasts.
thymosins hormones secreted by the thymus gland that influence the development of the T lymphocytes of the immune system.

Flattened membranous sacs in a chloroplast that are arranged in stacks forming the grana and contain the photosynthetic pigments. (Figure 16-34) ...

The interior of the thylakoids forms another compartment, the thylakoid space.
Thylakoids may be stacked into columns called grana.
Chlorophyll is located in the thylakoids.

atmospheric carbon dioxide into metabolizable sugars by the biochemical process of photosynthesis. Chloroplasts have a double outer membrane. Within the stroma are other membrane structures - the thylakoids. Thylakoids appear in stacks called "grana" ...

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See also: See also: Organ, Cell, Plant, Chloroplast, Trans

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