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Plants Reproduction

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Subido el 30 de marzo de 2020 por Enrique H.

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Hello boys and girls, I hope you are all well at home. Today we're going to learn how plants with 00:00:00
flower reproduce. To do so, the first thing we need to learn are the parts of a flower. 00:00:08
This is a petal. If you look closely, you realize that a petal is just a modified leaf. 00:00:16
and all petals together form the corolla yep okay if you look at the bottom of 00:00:26
the picture you can see some small green leaves that protect the flower these are 00:00:39
the sepons and all the sepons together form the calyx let's go back to the top 00:00:46
the flower these are the stamens in stamens the pollen is produced finally 00:00:55
we have the piston the piston is the female part it contains the ovary well 00:01:10
now that we know the parts of the flower we can learn how plants with flower 00:01:21
reproduce first the pollen is formed here in the stamen in the main part of 00:01:28
the flower this pollen needs to reach the pistil of a different flower this 00:01:38
can be done by the wind or insects that act as pollinators so let's pretend a 00:01:46
bee comes to the flower to collect pollen to make honey here's the bee hello 00:01:55
children so the bee comes to the flower to collect the pollen the bee gets the 00:02:05
pollen the pollen gets stuck to the bee to the bees legs then the bee goes to a 00:02:13
different flowers let's pretend now this is a different flower the bee goes to a 00:02:20
different flower to collect more pollen well some of the pollen from the first 00:02:26
flower you're going to fall into the second flower piston when a grain of 00:02:36
pollen reaches the flowers pistil the ovary matures and turns into a fruit 00:02:44
let's have a look at the development of a tomato they say in England a tomato to 00:02:55
learn a little bit more about that well first the flower develops once the 00:03:04
flower is ready the flower opens now bees or in this case bumble bees are 00:03:11
going to pollinize the flower that means that some pollen is gonna travel from 00:03:19
one flower piston into from one flower statement into a different flower piston 00:03:27
what happens when the pollen gets to the different flower pistons well the 00:03:34
petals are going to fall down because they're not needed anymore and inside 00:03:44
the piston the fruit is going to develop you can still see the sepals are the 00:03:50
sepals that were protecting the flower are still in this case protecting the 00:03:57
the fruit the fruit is going to grow and grow and grow and when it's ready you're 00:04:02
gonna change color it's gonna turn in this case from green to red well inside 00:04:11
the fruit are the seeds and when one of these seeds falls on the ground it may 00:04:18
germinate and a new plant grows so let's pretend that one of these seeds from 00:04:25
tomato falls to the ground and then it germinates mean that the roots are going 00:04:30
to start to grow under the ground and the stem and the flower and the leaves 00:04:36
are gonna grow above the ground that's how a new plant grows and that's how 00:04:42
plants reproduce so I hope that after this video you understand a little bit 00:04:49
better how plants with flower reproduce so that's all for today stay home and 00:04:56
stay safe bye bye for now 00:05:03
Niveles educativos:
▼ Mostrar / ocultar niveles
  • Educación Primaria
    • Segundo Ciclo
      • Tercer Curso
Autor/es:
Enrique Hernández Jiménez
Subido por:
Enrique H.
Licencia:
Dominio público
Visualizaciones:
67
Fecha:
30 de marzo de 2020 - 23:07
Visibilidad:
Clave
Centro:
CP INF-PRI MIGUEL HERNANDEZ
Duración:
05′ 07″
Relación de aspecto:
1.78:1
Resolución:
1280x720 píxeles
Tamaño:
519.29 MBytes

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