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Stoma

Biology StolonStomach

Stoma in Greek means "mouth".
Stoma Paradox
As the key reactant in photosynthesis, carbon dioxide, is found in the atmosphere, most plants require the stoma to be open during daytime.

 


Stoma in Greek (σÏ"όμα) means "mouth".
Contents
1 Carbon gain and water loss
2 Alternative approaches
3 CAM plants
4 Opening and closure
5 Inferring stomatal behavior from gas exchange
6 Stomata as pathogenic pathways
7 References ...

stoma
small opening such as found in leaves; plural, stomata
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

The Stomach
(Ventriculus; Gaster)
The stomach is the most dilated part of the digestive tube, and is situated between the end of the esophagus and the beginning of the small intestine.

Stomata reveal past carbon dioxide levels
Because CO2 levels and stomatal index are inversely related, could fossil leaves tell us about past levels of CO2 in the atmosphere? Yes.

stomata -- Openings in the epidermis of a stem or leaf of a plant which permit gas exchange with the air. In general, all plants except liverworts have stomata in their sporophyte stage.

Stomach poison: An insecticide that is lethal only after it has been ingested by an insect, entering the insect body through the gut.

stoma pl. stomata
[Gk. mouth]
A microscopic pore surrounded by guard cells in the epidermis of leaves and stems that allows gas exchange between the environment and the interior of the plant.
strategy ...

stomach The muscular organ between the esophagus and small intestine that stores, mixes, and digests food and controls the passage of food into the small intestine. PICTURE ...

stoma (plural: stomata). Natural opening in a leaf surface that serves for gas exchange and water evaporation and has the ability to open and close in response to environmental conditions.

stoma (pl. stomata)
A microscopic pore surrounded by guard cells in the epidermis of leaves and stems that allows gas exchange between the environment and the interior of the plant.

The Stomach (or Churn, Churn, Churn)
During a meal, the stomach gradually fills to a capacity of 1 liter, from an empty capacity of 50-100 milliliters. At a price of discomfort, the stomach can distend to hold 2 liters or more.

Stomata (singular stoma) are microscopic openings on the undersurface of leaves that allow gas exchange and water evaporation from inside the leaf. Because dehydration can be a serious problem, the stomata close when the plant is under water stress.

stomach The expansion of the alimentary canal between the esophagus and duodenum.
stomates The small openings in leaves, herbaceous stems, and fruits through which gases and water vapor pass.

4. Stomakhin, A, Vasiliskov, V., Timofeev, E., Schulga, D., Cotter, R., & Mirzabekov, A. (2000) Nucleic Acids Res. (in press).
The online presentation of this publication is a special feature of the Human Genome Project Information Web site.

Your Stomach
As that hotdog bite falls into the stomach, a round muscle called a sphincter closes behind it. This protects the esophagus from having food or other chemicals splash back into it.

Neuroblastoma cells
Cells derived from a malignant tumour composed of neuroblasts ...

The fourth stomach of a ruminant; rennet.
1. (Science: botany) A name given to many tall and coarse grasses or grasslike plants, and their slender, often jointed, stems, such as the various kinds of bamboo, ...

It is a muscular stomach in the bird that aids in crushing food (usually tough plant material), often aided by gizzard rocks. Many birds have a gizzard, as did some dinosaurs.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Axolotl (Ambystoma mexicanum): Literally meaning water monster (in Aztec), axolotl is a salamander (amphibian) extensively used in the evolutionary immunogenetic studies.

The muscles of the stomach participate in mechanical digestion by churning the food "bolus.

Retinoblastoma -- a childhood malignant cancer of the retina of the eye. reverse transcriptase viral enzyme used to make cDNA.

An example of this is hereditary retinoblastoma, a serious cancer of the retina that occurs in early childhood.

Barry Marshall and Robin Warren of Australia discovered bacteria in the stomach lining of patients with chronic gastritis and peptic ulcers.

Microscopic pores known as stomata are the only breaches in the otherwise continuous layer of the leaf epidermis. Each individual pore, or stoma, is, in fact, a small opening between a pair of specialized cells known as guard cells.

When you eat, food travels into your stomach, and digestion begins. You don't need your stomach working if you aren't eating.

Most who are infected with Shigella develop diarrhea, fever, and stomach cramps starting a day or two after they are exposed to the bacterium. The diarrhea is often bloody. Shigellosis usually resolves in 5 to 7 days.

Antacids chemicals consumed by people to react with stomach acid to change the pH of the stomach contents to a neutral pH
(anti = against‚ opposite; acid = sour‚ sharp)
Anterior front or head end of an organism
(ante = before) ...

gastrula - the belly, stomach] The early embryonic stage following the blastula stage during which cell migrations form distinct germ layers. The primitive gut (archenteron) is formed and opens to the exterior through the blastopore.

because toxicants enter the body through the stomach and intestines and are then transported to the kidney
B.
because the kidney has a very large surface area in direct contact with the blood ...

In vertebrates, this innermost layer of cells goes on to form the linings of the gut (esophagus, stomach, intestines, rectum, colon), pharyngeal pouch derivatives (tonsils,thyroid, thymus, parathyroid glands), lungs, liver, gall bladder, pancreas.

Single-gene disorder
Hereditary disorder caused by a mutant allele of a single gene (e.g., Duchenne muscular dystrophy, retinoblastoma, sickle cell disease in human beings). Compare polygenic disorders"polygenic disorders.

Hereditary disorder caused by a mutant allele of a single gene (e.g., Duchenne muscular dystrophy, retinoblastoma, sickle cell disease).
See also: polygenic disorders
Somatic cell ...

Crassulacean acid metabolism An adaptation by plants living in arid environment; the C4 pathway concentrates carbon dioxide at night, and vapor exchange with the environment is curtailed during the heat of the day by closure of the stomata.

Duchenne muscular dystrophy, retinoblastoma, sickle cell disease). Compare polygenic disorders.
Somatic cells Any cell in the body except gametes and their precursors.

See also: Trans, Organ, Cells, Stomach, Human