Características, clasificación y utilización

1. EL TALLO
Iintegrantes:
Mateo Noboa
Stefania Paredes
Universidad Central Del Ecuador
Facultad De Filosofía, Letras Y Ciencias De La Educación
Carrera De Pedagogía De Las Ciencias Experimentales Química Y
Biología
Tutor:
MSs. Bolivar Reina

2. ¿Que es el tallo?
 La parte de la planta que crece al sentido contrario de la raíz.
 Es el encargado de llevar el agua, nutrientes y sales minerales a todas las partes
de la planta
 Facilitar el intercambio energético que se produce durante la fotosíntesis.

3. Caracteristicas
Los tallos cuentan con
yemas terminales de las que
brotaran tanto flores como
nuevas ramificaciones.
Posee geotropismo negativo y
fototropismo positivo
El tallo se origina en la
yémula o plúmula del
embrión de una semilla.
Es el órgano de sostén de la
planta, encargado de darle
sujeción no sólo a las hojas, sino
también a las flores y frutos.
03
01
04
02

4. Estructura
 Es el más fundamental
 Está compuesto por yemas,
nudos e internodios
 Es la parte más desarrollada del
tallo
 Abarca toda el área entre el
cono del vegetal y el cuello.
 Es en esta zona donde nacen las
ramas
 Estos son los que nacen del tallo
principal.
Tallo
Secundario
Tallo
Principal
Tallo Principal
Tallo Secundario

6. Es esta parte del tallo que se
conecta a la raíz.
También se le conoce
como eje caulinar o tallo
principal.
Cuerpo Cuello
Se presentan como
abultamientos en todo el tallo,
que se sitúan de trecho en
techo permitiendo el
nacimiento de las hojas.
Nudos
Se trata de la zona donde
la rama o la hoja se une al
tallo.
Axlla

7. Estructura interna
primaria
En la estructura interna del tallo al realizar un corte se puede
observar los siguientes tejidos:
Epidermis:ocupa la parte más externa del tallo
Córtex: ubicado bajo la epidermis
1. Colénquima
2. Paránquima cortical
3. Clorénquima
4. Esclerénquima
5. Células secretoras

8.  Estela:Es la parte central del cuerpo primario del tallo
1. Tejidos vasculares primarios
2. Esclerénquima
3. Floema primario
4. Cambium vascular
5. Xilema primario
6. Médula
 Parénquima interfascicular: Es un tejido sencillo
que está implicado en una gran variedad de
funciones dependiendo de dónde se encuentre.

9. Estructura interna
secundaria
La estructura secundaria es posible en los tallos
leñosas. Estas plantas en cierta etapa de su
desarrollo, crecen en grosor, debido a dos tipos
de tejido:
 Cambium vascular
 Cambium del corcho o felógeno.

10. Tipo de ramificación
Simpodial
Se origina en su crecimiento el tallo primario
o principal, portador de yemas axilares. Por la
dirección del crecimiento, el tallo primario es
ortótropo (orto = recto, tropos = dirección).
Monopodial
El tallo está constituido por
un único segmento
Monocasio
Es cuando la ramificación se
continúa constantemente por una
sola rama lateral.
Dicasio
Se produce cuando la yema
apical crece por debajo del eje
principal

11. Sistemas básicos
de ramificación
Solo presentan el tallo principal
Tallos no ramificados
Tallos ramificados
Es la más primitiva y característica de
los helechos
• Ramificación dicotómica
La ramificación es axilar, las ramas se
originan en yemas axilares.
• Ramificación lateral
El tallo principal se ramifica de
alguna manera

12. What can you do to help
the community?
Venus has a beautiful name and
is the second planet from the
Sun. It’s terribly hot, even hotter
than Mercury, and its atmosphere
is extremely poisonous. It’s the
second-brightest natural object in
the night sky after the Moon.
Saturn is a gas giant and has
several rings. It's composed
mostly of hydrogen and helium.
Saturn is a gas giant and has
several rings. It's composed
mostly of hydrogen and helium. It
was named after the Roman god
of wealth and agriculture.
Neptune is the farthest planet
from the Sun. It's also the fourth-
largest one by diameter in the
Solar System.

13. Final activities
04
You can enter a subtitle
here if you need it

14. After-school assignment
Despite being red, Mars is actually a very cold place. It's full
of iron oxide dust, which gives the planet its reddish cast. It's
also the fourth planet from the Sun and the second smallest
one, being only a bit larger than Mercury.
Venus has a beautiful name and is the second planet from
the Sun. It’s terribly hot, even hotter than Mercury, and its
atmosphere is extremely poisonous.
Venus
Earth is the third
planet from the
Sun and the only
one that harbors
life in the System.
Earth
Jupiter is a gas
giant and the
biggest planet.
It’s was named
after a god.
Jupiter
Mercury the
closest planet to
the Sun and the
smallest in the
Solar System.
Mercury

15. Personal ethics
Actions of the week
Mercury is the closest
planet to the Sun and the
smallest of them all.
Venus has a beautiful name
and is the second planet
from the Sun. It’s very hot,
even more than Mercury.
Despite being red, Mars is
actually a cold place. It's
full of iron oxide dust,
which gives the planet its
reddish cast.
Mercury
● Neptune is the farthest
planet from the Sun
● Neptune is very far
away from us
● Neptune is the fourth-
largest planet
Neptune
● Saturn is composed of
hydrogen and helium
● Saturn is a gas giant
and has several rings
● Saturn is not the only
planet with rings
Saturn

16. Week summary &
dissertation: conclusion
Earth is the third planet from the Sun
and the only one that harbors life
It's full of iron oxide dust, which gives
the planet its reddish cast
Mars
Earth
Neptune is the fourth-largest planet
by diameter in the Solar System
Neptune
01
Venus has a beautiful name and is the second planet from
the Sun. It’s terribly hot, even hotter than Mercury, and its
atmosphere is extremely poisonous.
Mercury is the closest planet to the Sun and the smallest one
in the Solar System. This planet's name has nothing to do
with the liquid metal, since Mercury was named after the
Roman messenger god.
02
03

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