Tissues, Organs, and Organ Systems
There are functions which every animal and organism, from the simplest to the most complex, must perform.
Tissue array
A library of tissue samples are on microscopic slides. Gene expression in hundreds of tissues can be examined in one experiment.
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Tissue (biology)
From Wikipedia, the free encyclopedia
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tissue
group of similar cells performing a specific function
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Leaf Tissue Organization
The plant body is divided into several organs: roots, stems, and leaves. The leaves are the primary photosynthetic organs of plants, serving as key sites where energy from light is converted into chemical energy.
Plant Tissues
A mature vascular plant, e.g., a tobacco plant, contains several differentiated cell types. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several.
Meristematic ...
Adipose tissue
(Science: anatomy) connective tissue that has been specialised to store fat.
The tissue inhibitors of metalloproteinases (TIMPs) are endogenous inhibitors of the matrix metalloproteinases (MMPs), enzymes that play central roles in the degradation of extracellular matrix components.
Tissue Banks: Dana Farber Cancer Institute, Boston; University of Texas M.D. Anderson Cancer Center, Houston; Washington University School of Medicine, St. Louis; and UWS
Epidemiology: Fred Hutchinston Cancer Center, Seattle ...
tissues Groups of similar cells organized to carry out one or more speci?c functions. Groups of cells performing a function in a multicellular organism.
toxins Term applied to poisons in living systems.
tissue
[L. texere, to weave]
An integrated group of cells with a common structure and function.
tonoplast ...
Tissue A group of cells that act together to carry out a specific function in the body.
Tissue culture: A process of growing a plant in the laboratory from cells rather than seeds. This technique is used in traditional plant breeding as well as when using techniques of agricultural biotechnology.
tissue culture null
transition A type of point mutation in which one purine or pyrimidine is replaced by another base of the same type. Examples: A-G and C-T.
tissue
A large group of cells of similar structure in plants or animals that performs a specific function. (ex. muscle, phloem, etc.)
Covered in BIOL1020 Lab 3 Cells ...
If a tissue is damaged, what happens?
When the tissue is damaged, it can die by a variety of processes. The most common that we used to know about is when it just bursts and dies because it's been hit or has had trauma. But there are other ways.
packing tissue. Firm, membranous tissue lining the walnut shell and separating the kernel halves.
panicle. A branching cluster of flowers held on a stem, such as the flowering parts of most grasses.
The fatty tissue covers the surface of the gland, and occupies the interval between its lobes. It usually exists in considerable abundance, and determines the form and size of the gland. There is no fat immediately beneath the areola and papilla.
Tissue culture infectious dose 50 (TCID50)
That quantity of an infectious agent, for example a virus, that when inoculated onto a number of susceptible tissue cultures will infect 50% of the individual cultures.
Tissue culture
- A procedure for growing or cloning enough cells through in vitro techniques to make a tissue.
Tobacco Whitefly (Bemisia tabaci) ...
Tissue or cells multiplying by asexual division, grown for experimentation.
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 ...
Tissue: (in multicellular organisms). A group of cells performing a specific function. For example heart muscle tissue is found in the heart and its unique contraction properties aid the heart's functioning as a pump. .
tissue A group of similar cells that performs a specialized function.
titer Concentration of a substance in a solution as determined by titration.
tolerance limits See limiting factors.
Tissue plasminogen activator dissolves blood clots in heart attack victims.
Clotting factor VIII will soon be available. Most cases of hemophilia are due to the absence of this factor.
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Tissue or organs from an individual of one species transplanted into or grafted onto an organism of another species, genus, or family. A common example is the use of pig heart valves in humans.
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Y
Y chromosome ...
Tissue-specific expression: Gene function which is restricted to a particular tissue or cell type.
A tissue is a family of cells that live very close together, and work hard to do the same jobs. Many tissues come together to form what biologists call an organ. This is like a city in the example above.
Every tissue in the body is loaded with capillaries, small blood vessels slightly larger than red blood cells. Coursing through the capillaries you find blood plasma transporting nutrients to the tissue and removing waste.
Plant tissues, plant growth and the plant cell from Kimball's Biology Pages
Botanical Society of America: What is Botany?
Science and Plants for Schools
A Study Guide to the Science of Botany ~ at Wikibooks ...
Phloem tissue consists of sieve-tube members and companion cells . The sieve-tube elements are large, cylindrical cells, with large pores in the cell wall at either end. They are almost entirely dead, and have no organelles.
connective tissues - any supporting tissue that lies between other tissues and consists of cells embedded in a relatively large amount of extra-cellular matrix ...
Epithelial Tissue in an animal‚ tissue which coats or lines various body parts
(epi = upon‚ over; theli = nipple) ...
SPECIALIZED TISSUES
The cnidarian family also has tissues. Tissues are specially developed groups of cells with one function.
mesendoderm A tissue layer that gives rise to both mesoderm and endoderm.
After 3 weeks lung tissue samples were collected, embedded in an epoxy plastic, sliced very thinly, stained and photographed under the microscope.
Transplantation of tissue or organs between organisms of different species, genus, or family. A common example is the use of pig heart valves in humans.
Source : PhRMA Genomics
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Triploid tissue in a seed, formed from fusion of two haploid female and one haploid male nucleus.
Related Terms:
Haploid ...
A malignant tumor derived from epithelial tissue, which forms the skin and outer cell layers of internal organs. Catalyst.
Autoradiograph -- a photographic picture showing the position of radioactive substances in tissues. Bacteriophage -- a virus whose host is a bacterium; commonly called phage.
Succulent: a plant that is able to store water in its tissues and then withdraw it during times of drought. Water storage tissue may be found in the stem, leaves, or roots depending on the species.
There are other genes that are called tissue-specific genes. These are genes that, say, would only be expressed in a red blood cell or a neuron.
Many tissue specific enhancers can determine spatial patterns of gene expression in higher eukaryotes. Enhancers can act on promoters over many tens of kilobases of DNA and can be 5' or 3' to the promoter they regulate.
Any organism in which the tissue is intact can potentially yield enough DNA to sequence. (This includes insects in amber, wooly mammoths and museum specimens) This knowledge can be used to resolve phylogenies of extinct organisms.
In mammals, a tissue formed within the uterus through which nutrients are passed from the mother to the embryo (and later the fetus) and its wastes are removed. It is analogous to the protective membranes in the egg of other amniotes.
The atoms are organized to form molecules, the molecules to form cells, the cells to form tissues, the tissues to form organs, the organs to form apparatuses and systems, and these form the whole called an organism, ...
The term proposed by Koller (1935) to describe the multistranded condition (Gk. polys, many; tania, ribbon) of the chromosomes found in certain specialized tissues such as the salivary glands of Drosophila.
Related Terms:
Chromosome ...
a second grouping considers the operation of these structures at the level of tissues, organs and bodies; a third grouping considers organisms and their histories; a final constellation of disciplines focuses on the interactions.
phloem - living conducting tissue of a plant, a system basically composed of sieve tubes, companion cells, fibers and sclereids to convey the products of photosynthesis, particularly sucrose, from the leaves to growing tissues.
enchyma - an infusion, something poured in]. Embryonic connective tissue derived from mesoderm and neural crest cells. It later forms predominantly connective tissues, but may also differentiate into epithelial, muscular and nervous tissues.
Chorionic villus sampling (CVS) A technique used in antenatal diagnosis where a small amount of placental tissue is removed at about 8 - 9 weeks of gestation by transcervical aspiration.
This specialized tissue forms a trophic interface between the embryo and mother during cleavage, and subsequently forms the embryonic portion of the placenta upon implantation into the endometrial epithelium of the uterine wall.
A cDNA library that only contains those cDNAs that are expressed in a particular type of cell or tissue or under particular growth conditions. The cDNA common to all conditions is removed by hybridization with excess RNA from other cells (i.e.
First messengers Hormones; molecules that transduce signals from one tissue to another tissue (the target tissue) through the blood.
The spread of astrocytes into damaged tissue.
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In situ. Refers to performing assays or manipulations with intact tissues.
Insulin. A peptide hormone secreted by the islets of Langerhans of the pancreas that regulates the level of sugar in the blood.
Parasitoid: An animal that feeds in or on another living animal, consuming all or most of its tissues and eventually killing it.
Parthenogenesis: Development of an insect, from egg to adult, without fertilization.
Diploblast: A lower invertebrate such as jelly fish that are composed of two tissue layers (ectoderm and endoderm) and lacking the third layer (mesoderm) present in higher invertebrates and vertebrates.
Bohr effect. When blood pH decreases, the ability of hemoglobin to bind to oxygen decreases. An adaptation to release oxygen in the oxygen starved tissues in capillaries where respiratory carbon dioxide lowers blood pH ...
Ballistic particle-mediated gene transfer. Complementary DNA molecules are adsorbed to gold particles and shot by a pressure gas jet into tissues or culture cells.
HIGH-PRESSURE FREEZING ...
It is now known that stem cells can also be obtained from placenta and amniotic fluids, and pluripotent cells can be derived from adult cells of the skin, blood and other tissues.
 See also: Cells, Trans, Organ, Human, Protein
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