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0:00 Have you ever wondered how water gets from the roots all the way up to the leaves or how nutrients travel through a plant? So in this episode we will discover how plants use their specialized cells or specialized tubes like the sylem and phloem to move water, minerals and food around just like how our veins and arteries do. Hello my dear students. Welcome back to my YouTube channel. This is me once again your science teacher for today. So if you're new to this channel, don't forget to subscribe, like and hit the notification bell for more updates in Science 8. [Music]
0:54 For today's video, we're going to discuss about the plan transport system and of course the parts, the functions and the processes of plant transport system. What exactly is a plant transport system? When we say plant transport system, it is responsible for moving water, minerals, and food throughout the plant. It also involves specialized plant parts that work together to support survival, growth, and reproduction. All? So when we say plant transport system, this is the process of how the nutrients our plants receive travel to different parts of their bodies. Where does the extraction of nutrients, minerals,
1:43 food, and sugar by plants usually begin? Of course, that starts with the roots underneath, because when we water the plant, it's in the soil first. So using the roots, so it will absorb the roots and then it will flow okay upward going to the stem and to the different parts of the plant. Now, the question is, "What are the different parts of the plants and the functions of the plants?" What are the different parts of a plant's body that help absorb nutrients? Of course, of course, there is the flour, stem, lift, fruit and roots. 'Right? For grade one. Even a first grader knows the answer. Now, let us discuss the functions of
2:28 these different parts of the plant. Let's start with the root. Root's function is to absorb water and minerals from the soil. It anchors the plant firmly into the ground. Also, it initiates root pressure that helps push water upward into them. It's very obvious that our roots are the ones that absorb nutrients. Of course we have something called root pressure. That root pressure is what pushes the nutrients it has absorbed from the soil upwards. Of course it started at the bottom. It's hard to make it flow upward. So it will flow upwards to the different parts of the plant. Second, we have the stem. Stem or branches. In small plants
3:14 it's the stem. So in trees, we call it the branches. Stem serves as the main passage way for water, nutrients, and food. Contains vascular bundles, the syem and the phloem. And it supports the leaves and flowers holding them towards the light. When we say stem, is that the stem? Imagine a plant without a stem, roots immediately, then how can the flowers and fruits be attached? Where are they attached? So aside from this, this is the passage with a path to the different parts of the plant, of course, it also holds the flower, the leaves, and the fruits so that it looks more beautiful. Okay, and of course, the stem has what we call vascular bundles.
4:00 There we can see what we call sillem and flutet. Free. Lives is the main site of photosynthesis where the plant makes its own food or glucose and also it contains stomata a tiny pores that allow gas exchange and transpiration. It also releases water vapor in the form of transpiration which helps pull water up from roots. Lives, have you ever seen stomata? There you go. Those are the stomata. This is what looks like the most opening portion of the leaves. Okay? It was said earlier that it's the main site for photosynthesis. Isn't it true that when we say photosynthesis, this is what makes it, this is the
4:45 process by which they make their food? Of course, plants, even if you leave them anywhere. Look at why some plants are still growing, some are still beautiful, some are still alive, they can even make their own food. And through the stomata, this plus the ah opening, in humans, these are our pores where our sweat comes out when we exercise. These are stomata. This is also what serves as the passageway for gas. They are the ones who release oxygen here and this is also where the carbon dioxide needed by the plant for photosynthesis enters. That's it. And of course, what is transpiration? The transpiration, this is the process where plants absorb water through the roots and then give off
5:32 water vapor through pores in their leaves. Now, have you ever seen uh leaves or plants during the morning? When you wake up in the morning, you'll see the plants, the leaves are wet even though it didn't rain last night. It's because of that what we call transpiration. Because the water vapor that comes from the roots up through the leaves comes out through the stomata. It seems like this is where they release the water vapor, so of course when they release the water vapor, it will hydrate and become water. Okay? So that is what we call transpiration. Apparently that's where our plants breathe. Flower is mainly for reproduction.
6:17 Flowers also receive nutrients flowem. Sugars produced in leaves are transported to flowers to support growth and seed development. So, have you seen Santas? That's it. These are the things that, when you remove that stuff, you absorb something that's sweet from the plants, from the flowers. Why is it called for reproduction? Because it's because of the pollination, right? The beads, they collect pollen from the flowers, transfer it from the other flowers to reproduce. Okay. So why does it exist? Why is sugar sweet? It's because that sugar that comes from the leaves, it's one of the nutrients of the plant. So from leaves, it will be transported to the flowers. So it makes the
7:05 flowers ah sweet. It's because of the sugar. And of course, flour also helps transport nutrients. And of course, we have the fruits and the seeds. Fruits and seeds receive food and nutrients transported by the flow to support fruit development and it stores nutrients and energy needed for seed germination. Now let's proceed with the specialized tissues which we call the xylem and the fluem. So the xylem and the fluem these are the specialized tissues. Apparently, in basketball, this is their MVP. they have the most crucial and significant role when it comes to absorption of nutrients. Zylem transports water and minerals upward
7:51 from the roots to leaves and it is made of dead hollow cells that form tubes. While flowem it transports sugar and food produced in leaves to all parts of the plant. It made it is made of living living cells including shiv tubes and companion cells. If you also notice in sylem and flowem, sylem it is it is flowing it has one way flow and in flowem it has two way flow, right? So the xylem goes up because it distributes minerals and water. While in the flue, he distributes the sugar. Okay. Up and from leaves down to the different parts of the plant. Also remember that sylem is the tissue vascular plant
8:38 that conducts water and dissolve nutrients upward from the root and it also helps to form the woody element in the stem. While this flow is the tissue and vascular plants that conduct sugar and other metabolic products downward from the leaves. We also have something called translocation. When we say translocation, this is the transport of soluble food material from one part of the plant to another. Look at this figure. Look where the sugar is. He was there in the leaves. And then later he was at the stem part. Then later he was going to the roots. When we say translocation, this is the type where trans. Okay? The nutrients are transferred
9:24 from one part of the plant going to the different part of the plants. Apparently he is being transferred from one place to another. And we also have the guard cell. When we say guard cell, this is one of two specialized cells that border a stoma and regulate gas exchange and water loss. By the way, when we say stoma, that is only a singular stoma. But when we say stomata, this is the one with the most stomata. is the opening what when we say stoma or stomata, this is the tiny openings of or pores in plant tissue that allow for gas exchange. Let's go back to the guard cell. Do you know the gate in the guard cell? He is gate two. Two doors. So
10:12 that's what it means, like a guard cell . That's why we say there are two specialized cells that border the stoma. So it seems like there is an opening and the stoma opens and closes, it's not always open because of course the gas and then the water also need to be regulated. So it can't just be an exhibition. So he also needs to be stabilized and the flow of gas and then water needs to be balanced. And of course with the help of the guard cell. So that's what will regulate the balance of nutrients, gases, and water in the plant. Allr so this is the end of our lesson vlog about plant transport system. Okay.
10:57 So if you're new to this channel, don't forget to subscribe, like, and hit the notification bell for more updates in science 8. So this is me once again, teacher tint, your science teacher for today. That's class, so don't forget to subscribe. And if you have a comment below, please leave your comment below and we will read it and post it. And of course, if you have a suggested topic, just leave your comment below and we will try to make a lesson vlog about it. So this is me once again, teacher Tin. Goodbye and see you again.
