What is a plant?
Plants are living organisms that has multiple cells. Plants can reproduce sexually, however I will not be getting into details for how that works. Plants can grow in soil and use water and sunlight as food. That is in the process of photosynthesis.
The structure of a plant:
Why do plants have roots?
Firstly, the root is what keeps the plant in place but most importantly the root is basically their ‘life’ the root collects water, nutrients and air to bring it up to the leaves of a plant. So then the plant can interact with the sunlight to produce sugar and energy for itself.
Why do plants have a stem?
Plants have a stem to support the leaves or flower. And most importantly it is a tube that transports water and nutrients up to the leaves. And all of those came from the ‘root’.
There are external tubes that stay outside of the stem which hold water and food (nutrients) The names of the tubes are: Xylem and Phloem.
Why do plants have fruits?
The main function of the fruit is to spread seeds around the plant that can allow them to reproduce.
Why do plants have flowers?
When plants are mature enough and ready to reproduce, flowers grow. Flowers are involved in sexual reproduction that contains pollination and fertilization.
Why do plants have leaves?
Leaves are the most important part of a plant. They take nutrients, and carbon dioxide from the roots of the plant and bring it up to the leaves (using the stem) so they can interact with the sun and make their own food (sugar) and energy.
That is called photosynthesis, in order for photosynthesis to react, you need chlorophyll, carbon dioxide, water and sunlight.
Chlorophyll – It is a pigment that makes the leaf green.
Chloroplasts – It is a thing from the palisade cells that contain chlorophyll.
Photosynthesis – It is when a plant produces to make its own food.
This is the insides of a plant (not a cell)
The top layer is called the Cuticle. The cuticle is the part that protects the leaf.
The top and bottom skin of the leaf are called epidermis.
The palisade cells contain Chloroplasts, which Chloroplasts contain Chlorophyll.
The Stomata are the holes underneath the leaf. It is a hole for carbon dioxide to enter the holes and oxygen leaves.
The phloem transports food which is sugar which we oppose as ‘glucose’.
The xylem transports water.
Germination:
What is germination?
Germination is when an organism grows or sprouts from a seed.
Seeds don’t always need soil to germinate, they need sunlight, oxygen and water
Flower Diagram
Seed Diagram
