All about trees

Today, I want to talk about trees. We see tall plants called trees everywhere. So, let’s dive into the topic of trees. Trees are living things. Trees need water, nutrients from the soil, and the energy from sunlight.  

Trees can move but it takes time. Auxin is a thing called a hormone that helps with growth. So, the roots move in the direction the auxin moves in the tree. If auxin is on the right, then shoot or root will move in that direction. Trees also sometimes grow in the direction of light. This is phototropism. Roots grow down. This is called gravitropism. 

Now let’s talk about parts of a wood of a tree. The vascular cambium creates cells in and out and it is on the middle. Bark covers the vascular cambium. Cork cambium makes the full cork. Cork is very strong and hard. Oxygen can go through lenticels which is inside cork.

Now let’s talk about tree cells. So, like all living things trees have cells. Tree cells are plant cells. They have a nucleus like all cells and a nucleus is something that acts like a brain inside a cell because it controls the cell. The nucleus contains DNA (deoxyribonucleic acid) in the nucleus.  

There is another part of a cell called the vacuole which contains water. The vacuole can make up to 90% of a volume of a cell.  Tree cells also have cell walls. The cell wall stops the cell from bursting with liquid. 

Trees also breathe like us, but they don’t have lungs. It is called respiration and includes carbon dioxide and needs energy. Mitochondria inside the cell is where it happens.

Chloroplasts have chlorophyll to make the tree leaves green, but when chlorophyll is lost the chloroplasts turn into chromoplasts. This causes the colors in fall.

Trees can capture the energy from the sunlight and make their own fuel. This is called photosynthesis. When we eat plants, we take that energy from plant fuel. 

So, stomata are parts of leaves that take in carbon dioxide and the tree is turning it into oxygen and a human and an animal breathe it. We exhale carbon dioxide, and it is repeated but it’s the opposite. 

I like trees because they give us oxygen through photosynthesis.