Categorie: Tutti - comunicación - membranas - uniones - células

da esmeralda mina herrera mancano 2 anni

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UNION CELULAR

Las uniones celulares son estructuras vitales que conectan a las células adyacentes entre sí o con la matriz extracelular. Existen diferentes tipos de uniones, cada una con funciones específicas.

UNION CELULAR

UNION CELULAR

The first division between continents was made by ancient Greek navigators, who named them 'landmass, terra firma'.

Generally classified by convention rather than any strict criteria, nowadays seven regions are regarded as continents from a geopolitical point of view.

Características

Las células son elementos que se encuentran comunicados entre si, y con el medio extracelular.
Estas se encuentran delimitadas por una membrana que las mantiene separadas del ambiente extracelular.
Los organismos vivos están compuestos por estructuras discretas y variadas llamadas células

Las uniones celulares son los puentes de contacto que existen entre las membranas citoplasmática entre células adyacentes o entre una célula y la matriz.

Hemidesmosomas

Australia is the world's smallest continent and is also known as an 'island continent' as it is surrounded by water on all sides.
It includes 14 countries and it is the least populated continent.

Its name comes from the Latin word 'australis' meaning 'southern' because it lies entirely on the south of the equator.

Una lamina citoplasmatica asociada a fila,entos intermedios y una placa de membrana externas que se encarga de unir al hemidesmosoma con lamina basal, por medio de un filamento de anclaje.

Australia is home to some animals that can't be found anywhere else in the world.

Name at least 6 of these unique animals.

A diferencia de la macula adherente o el desmosoma, los hemidesmosoma tienen una estructura diferente, conformada por:

The largest sandstone monolith can be found here and it is one of Australia's most recognizable natural icons. It is the largest monolith in the world.

Name this rock and write down one of the characteristics it is famous for.

Famous for
El termino hemidesmosoma se usa porque esta estructura parece, literalmente medio desmosoma.

The largest coral reef can be found here.
Name this coral reef, add its length and mention what type of coral is it.

Estas estructuras tienen como función el anclaje del dominio de la célula epitelial con la lamina basal subyacente.

Out of 14, how many countries you can name?

How about these countries' capitals?

Fiji - Suva

Uniones de anclaje o adherentes.

Of the seven continents of the world, Africa is the second largest.

Africa comprises 54 countries and it is the hottest continent.

The equator passes through the middle of Africa and it receives direct sunlight throughout the year.

The world gets 66% of its chocolate, 50% of the gold and 95% of the diamonds from Africa.

El espacio intercelular se encuentra ocupado por proteínas que pertenecen ala familia de las cadherinas, desmogleinas y desmocolinas.

The largest hot desert in the world which used to be a lush region with many plants and animals.

The current climate makes it a difficult place for any life to exist. It is hot, dry, and windy.
Very hot during the day but the temperature can drop sometimes to below freezing at nights.

It rarely rains, some regions can go years without seeing a drop of rain.

Name this desert.

Area
En este tipo de uniones, las membranas celulares adyacentes que están unidas por medio de zonula y maculas adherentes se encuentran separadas por una distancia celular que es relativamente amplia.

The world's longest river can be found here, famed for its ancient history and the archaeological sites along its shores.
This river gave rise to the early Egyptian civilization.

Name this river and add its length.

Length
Estas se ubican en la cercanía de la superficie apical del epitelio.

Out of 54, how many countries you can name?

How about these countries' capitals?

Morocco - Rabat

Uniones en Hendidura o gap

Asia is the world's largest continent of the seven continents in size, as it covers one-third of the earth's surface.

It includes 50 countries, and it is the most populated continent, 60% of the total population of the Earth lives here.

La presencia de esta molécula reduce la comunicación entre una clase neuronas en la retina, en respuesta al aumento de la intensidad de la luz

What are the major animals found in Asia?

Name at least 4 of these animals.

Esta clase de uniones se encuentra virtualmente en todos los epitelios, y en otros tipos de tejido, donde sirven para propositos bastantes variados.

The only man-made structure that can be seen from space is located here.

Name this construction and add other facts about it.

En una unión en hendidura, los citoplasmas de las células se conectan y se crea una conexión física donde puede ocurrir el paso de moléculas pequeñas.

Asia houses the highest point on earth.
Name this summit and write down how tall it is.

Name
Las uniones en hendidura o gap se encuentran en regiones desprovistas de membrana citoplasmática limitante entre las células vecinas.

Name as many as you can out of the 48 countries located in Asia.

Write down the capitals too.

Japan - Tokyo

Uniones Estrechas

Europe is separated from Asia by the Ural mountains and the Caspian Sea.

It is surrounded by water on three sides: Mediterranean Sea in the south, Atlantic Ocean in the west, and the Arctic Ocean in the north.

Three-fourth of the world's potatoes grow in Europe.

En esta interacción, las células se ubican formando un patrón que recuerda a un anillo. Estas uniones abarcan la totalidad del perímetro.

Europe has many exceptional animals, birds, and reptiles with unique methods of staying and hunting.

Name at least 4 of them.

Se ubica entre las paredes laterales de células vecinas a una distancia mínima de sus superficies apicales.

Europe is a large region, with several major rivers that connect its many countries. There are five primary rivers in Europe, and one of them flows through 10 countries, more than any other river in the world.

Name these rivers.

River's name
Las células están separadas por una distancia de 10 a 20 mm.

Europe is one of the smallest continents, yet it is home to some of the largest mountain ranges.

About 20% of the total landmass of the continent is considered mountainous.

Name the 5 longest mountain ranges in Europe.

Mountains' name
Las uniones estrechas, también conocidas en la literatura como uniones oclusivas, son sectores en las membranas celulares de células vecinas que se encuentran unidas íntimamente.

The most beautiful cities in the world can be found in Europe. History, architecture, arts, and famous cuisine is representative almost to each country.

Out of 51 countries how many you can name?
And how many capitals?

Country
Czech Republic - Prague