TNTET- 7th Biology (Part - 1) தேர்வுக்குத் தேவையானவை...!

Added: 2026-05-18

[00:00:18]Good afternoon, do you need any online classes?

[00:00:22]If so, you can follow that number and do this.

[00:00:26]Okay, what are we going to look at today? If so, is it in the seventh science, biology term, term 2, term 3, everything in total, we are going to look at it here. Okay, what did you give first? If so, term one is important, that is cell biology, that is, the basic and functional unit of biological organisms. The complete organs of the cell, that is, the cellular organisms, the cells themselves, have small organs that carry out various missions. The cells themselves have small organs that come and go to perform their tasks. What do we call these things? We say that they are hundreds of years old.

[00:01:04]Right?

[00:01:44]Next, here we have mitochondria, there is chlorophyll, there is a nucleus, there are bacteria. Right? Here, mitochondria are what?

[00:02:02]Right? These are the powerhouses of the cell. Right? This is called the powerhouse of the organism. Right? This comes and produces energy from food, right?

[00:02:04]What is phytochondria? It is called the balance of life. This helps to absorb and utilize the energy in food. Helps to produce.

[00:02:15]Okay, next is the palus, which means cow dung, then chloroplast. These are found only in plant cells.

[00:02:25]It produces food by combining food with light. Right?

[00:02:31]What does this do to the chloroplast?

[00:02:32]It is only found in plant organisms. Okay, this doesn't happen to animals, it only happens to plants. What does it do?

[00:02:43]This chloroplast helps the body produce oxygen through photosynthesis.

[00:02:45]Okay, next comes the nucleus. This is the control center of the cell. Okay, this is the control center of the cell. In this, genes are DNA. What kind of DNA is there?

[00:02:59]If so, what is the control of the cell and this DNA? If so, what does this DNA do? If so, control of seminal fluid?

[00:03:07]Okay, what did they give next? If so, vacuoles, vacuoles, vacuoles. These save water and waste products.

[00:03:15]Okay, what are these doing?

[00:03:19]They're storing water and waste. Okay, so what are cells? There is a wormhole of cells. Then there are mitochondria, chloroplasts, vacuoles, and all that. What mitochondria do is they provide a stable energy source and are used to produce energy from within the body. Next comes cow math. What does a green plant do? It only sees plants, but it also uses light to make food. Come next and get well soon. This is a control center. What do we say when this happens? It's in the DNA. That is, let's enter this heroic industry in plants.

[00:03:57]Next come the blanks. This is just water, which helps to store waste, so these are the voids.

[00:04:06]Next, what are the types of this, its explanation, and its example? So, what are the types?

[00:04:11]Prokaryotic and Eukaryotic. Are there prokaryotic and eukaryotic?

[00:04:16]What is the explanation for this? If so, there is no clear internal conflict. Okay, let's get into this and get a clear understanding. There is no need to jump in. This is an example of what, if anything, bacteria.

[00:04:27]Right? What this prokaryotic does is not clear from this. What's the source of this? If so, bacteria.

[00:04:36]Next comes eukaryotic. What makes this so? It has a clear nucleus and membrane-bound organelles. Okay, what makes this eukaryotic is that it has clear structures like a nucleus and a membrane, and organelles. Example plants and animals.

[00:04:54]What is the next thing that was given?

[00:04:55]So, the types of each tissue, that is, the types of tissues, that is, tissues are a collection of organisms that do similar jobs.

[00:05:05]Okay, tissues are a collection of organisms that do similar jobs.

[00:05:09]Okay, what is tissue? Okay, what is there in this? So, there are plant tissues, there are light tissues. Okay, what do plant tissues do?

[00:05:16]So, the brain tissues come next. The brain tissues come next.

[00:05:20]Okay, these brain tissues are what. So, this will continue to grow. Okay, what will these adipose tissues do? Will it continue to grow? Leaf tissues, then, must mature to perform specific functions.

[00:05:34]Right? They say that these leaf tissues come and go, and what they do is that they keep coming and going to perform specific tasks. Okay?

[00:05:41]Next come animal tissues. In the body, there are epithelial tissues, muscular tissues, and so on. What do epithelial tissues do?

[00:05:52]How do they come to protect the body? This comes as an example, skin cells, this comes as an example, what would the epithelial tissues do if they came as an example, if they could protect the body. We call this skin.

[00:06:02]Next comes the muscle. That is, the direction in which the muscular body helps in movement.

[00:06:07]Wing muscle. Muscle is the muscle that helps the body move. Next come the nervous tissues. It came and transmitted messages to the brain, right? What do nerve tissues do? If so, they come and transmit messages to the brain. Right. There are two types of tissues, one is vegetative tissue, the other is stationary tissue. There are tissues that make up vegetative tissue. These impact tissues will continue to grow no matter what. What does the stationary tissue do?

[00:06:34]These tissues exist to perform certain tasks. Plants. Next, the tissues come and how are the tissues located?

[00:06:39]Next comes the muscle.

[00:06:41]Next comes the nerves.

[00:06:49]They say that what is it for? If so, what kind of dust is a clear stick? Next muscle is the tissue that comes in and enables your movement. What made Next come and work hard on the news? Is Nalamuthu Sim right?

[00:07:01]Next, what are the hierarchies of this biological system?

[00:07:06]What is the hierarchical structure of organisms? What is the hierarchy of life?

[00:07:13]What is it? Cell, particle, organ, organ system, organism?

[00:07:18]Cell, particle, organ, organ system, organism?

[00:07:25]Cell is a basic unit?

[00:07:30]Only if this cell exists can a plant or an animal be a human?

[00:07:34]Next, tissue is a collection of cells of organisms?

[00:07:39]What is tissue? A collection of cells. What did I say about the third element? This is the Bisipine package. From here comes the heart, leaf, animal, heart, plant, heart, right? Next comes the organ system, which is the collection of organs, so what is the digestive system? So what is the collection of organs, so what is the digestive system? Next comes the complete organism.

[00:08:04]A complete being, indeed. That is the creature. That is, what are the names for living things according to their size?

[00:08:12]Cell, tissue, organ, organ system, organism. What if a basic measure comes and then life? Tissue is a collection of cells. Next comes the organ, what then?

[00:08:22]This is a collection of tissues, if it is an animal, the heart, if it is a plant, the leaf. Next element zone. What did they say about the organ system? If so, what is the digestive system, an example of a collection of organs?

[00:08:32]Okay, what did you say about life? It's a new life.

[00:08:43]So it will be like this. First there is an organ, then comes the cilia, then comes the cell, then comes the organ, then comes an organism, and that creates a population.

[00:08:55]Next comes communication with other animals, which is like a community, and then there is only the biosphere. x came and the ecosystem came and our creatures live in it. Okay, what did you give next? Then the important facts for this lesson, namely keybacks.

[00:09:16]Okay, when did the large cell and the small cell come and go?

[00:09:22]Okay, the largest cell came from the fire hen's egg. Okay, what did the large cell do? Okay, what did the small cell do? Okay, what did the microplasma do? Okay, what did the microplasma do? Okay, the small cell came from the microplasma.

[00:09:31]What did the next inventor, Robert Cook, do? He used an air sample to discover the cell in 1665.

[00:09:41]What are the main black points of this lesson?

[00:09:42]What is the largest living thing? What is a small cell?

[00:09:44]Who invented it? That is, they are arguing about who discovered the first living cell.

[00:09:49]What's the next big creature to eat? It's a fire chicken. What if the small organism gave me mycoplasma? Okay, so what is this discovery? In 1665, a young man named Robert Hooke discovered the cell.

[00:10:06]Now the next lesson. What is the next lesson?

[00:10:08]Plant reproduction.

[00:10:11]Okay, plant reproduction.

[00:10:12]Reproduction in Plants. Okay, what are the parts of the first flower? A flower is the reproductive organ of a plant. That's right, a flower is the reproductive organ of a plant. What's next, if you're going to [ __ ] me, then it's a [ __ ] paper. This is the male reproductive part of the flower. The male reproductive part of the plant is the ovule. It will include Makarnada Pai and Makarnada Bumpi.

[00:10:36]Okay, this is the Makarnta bag and Makarnta pump. Okay.

[00:10:41]Next comes the Shulaka Circle. Right?

[00:10:43]What will the Suraku circle do if this comes and turns the flower white?

[00:10:49]What is going on, Ari? Are Maharaja Talum and Akarnta Pai correct? Next, what about the same type of female group? Then this situation arises. This is the hair surrounding the stem, the surrounding hair, and the surrounding hair. Now what do you mean by a hibiscus flower?

[00:11:05]If so, then that hibiscus flower will have two petals. That protection will come in the form of a circle, a vortex. Okay, that's what comes with a woman's penis. When we touch it, it sticks to our hands like a piece of yellow flour.

[00:11:19]That's what happened, the pollen grain.

[00:11:23]Next Pollination, okay?

[00:11:27]How does pollen fertilization happen?

[00:11:28]Pollen grains pass from the anther to the hair of the stigma.

[00:11:33]Right? Where do pollen grains come from and get transported from the pollen sac? The method of transmission of the hair follicle. Right?

[00:11:41]So what is pollination? If so, is pollination the process of the pollen grains being attached to the pollen sac? They say, "Come here and pollinate the next one, okay? This one came here, that one went there, how did we pollinate it?"

[00:12:00]What do they say when the elements of the same flower or the same plant reach the center of another flower? In that case, they say it is the combination of their own essence. This is how I said before, the normal Capricorn conjunction happens. This is what happens when a plant comes to its own tree.

[00:12:12]What does a single plant do? If it comes from one flower to another flower, it carries the pollen and creates its own number. Next, what happens when the pollen particles of the flowers reach the pollen of another plant's flower? Then there is the pollen that comes to the pollination. What is cross- pollination? If it comes from another plant, it carries its own pollen.

[00:12:35]What is cross-pollination? If it comes from another plant, it carries the pollen particles. What is self-pollination?

[00:12:49]Self-pollination is when a group of pollen grains from the same flower or another flower on the same plant reaches the same location. What would have given the third one, then, is cross-pollination.

[00:12:56]What is cross-pollination?

[00:13:03]Cross-pollination occurs when a pollen grain reaches the stigma of a flower on another plant.

[00:13:06]Next comes fertilization.

[00:13:08]How does this happen? They say that a new flower, a leg, or an eye will form. How is it that the male and female gametes come together to form the embryo? Right, the male and female gametes come together to form the uterus. The male unites with the female to create the embryo.

[00:13:27]Right? After fertilization, the seed becomes a fruit and the environment becomes a seed.

[00:13:33]Okay, what happens after fertilization? They say that the seed will come and become the fruit, and the environment will become the seed. Okay? Next, consider this concept as the process by which male and female sperm combine to create a fetus.

[00:13:46]This is correct. It comes and grows up the fallopian tube and reaches the uterus. The male gamete and female gamete combine to form the ovary.

[00:13:56]What will it be like after pregnancy? They say that the environment will become a lonely and uninhabited seed. Next sexual reproduction is lacking. Okay, let's say that a small graft develops from a petrol cell, from a small petro cell, and grows into a new helper. Okay, let's say that's an example, right? What did you give me, land and clothes?

[00:14:19]What do you think about the Polya method?

[00:14:21]If so, consider the example of a small cell growing from a petrol cell into a new organism. Don't come next and provoke.

[00:14:30]If not stimulated, what is it? If so, is it correct to divide the plant body into pieces?

[00:14:36]Fragmentation means that the plant body grows into new shoots, each with a new growth. Right?

[00:14:45]What happens if there is a stimulus? The plant body breaks into pieces, each piece separates and grows into a new organism. What is this? If so, spirochria, right?

[00:14:58]What does spirochria do? If so, they say that each piece divides and grows into a new organism. Next, the formation of spores. If so, the formation of spores. If so, what is the example of inbreeding through spores? The thallus comes from there and grows and grows. If so, let's say that the phragmites come from there and grow. If so, what is the point of this? If so, the phragmites come from there and grow. If so, what is the point of this?

[00:15:19]If so, the phylum gives birth to a new organism. The next spare creation is a mess.

[00:15:26]Okay.

[00:15:27]What the [ __ ] is going on next? A seed spread. They said a sergeant would come and dispose of it.

[00:15:34]They said it was in some kind of system. They said that the wind and water caused the lights to explode. So how does a seed spread through the wind? If so, how are the seeds light and natural? Right? Light natural- like seeds. Next comes the example of erukai and drumstick.

[00:15:51]What if the seeds of the new and old ones come in? They will be light, like the seeds of Sri Lanka. It comes and is spread by the wind and becomes another tree, and it changes.

[00:16:00]Next, the seeds in the water are right. The seeds in the water are right.

[00:16:05]What did they say about the example of the seeds in the water? Then, what about the coconut? Okay, next come the animals.

[00:16:10]How can animals come and give it to you? If so, the salts will stick to your teeth.

[00:16:14]Right? Can you give an example of this and say, " Dogs are right?" They say it's the last straw, are n't we?

[00:16:21]Next, come and see.

[00:16:23]Sitars released through force.

[00:16:25]The Sitars, who have emerged through the power of music seed, have come and given examples. If so, what did they give, whether the Vend and the document are correct, and how did the seed bear fruit?

[00:16:33]Water, air, water, animals, exhalation. What would you have given to the forest, if only the lightest seeds like this had come here and given you a hundred pounds of manure?

[00:16:42]Next, what did they say when they came to the water?

[00:16:45]The children in the water-filled cave said coconuts. Explain what they said. They came here to stick together with thorns and leaves. They came here to explode. They came here to burn and scatter.

[00:16:57]What did they give to this? They gave us both amen and amen. Next, the next organism is diverse. Is biodiversity correct? This is our third organism. What kind of diversity is it? Diversity is found in three levels? That is, what kind of diversity is found here?

[00:17:23]They say it is found in three ways. Genetic diversity, small diversity, genetic diversity, let's see. Are the same types of souls found within the same species? Are the same types of souls found within the same species?

[00:17:36]For example, the color and height differences of humans? Is this the same type of soul found within the same species? That is, humans come in different colors and are of different heights. So what would they all do?

[00:17:50]If they had different genes, they would come and be found in the same place.

[00:17:54]Another example is the color and diversity of human beings.

[00:17:58]Next came the thinking board.

[00:18:01]What is given in this? What are the different types of organisms found in a particular area?

[00:18:10]What are examples of different types of organisms found in a particular area?

[00:18:12]Only a tiger's deer in a forest should come. Right? If there are many kinds of small things, then there will be many of them here.

[00:18:25]What if all the different species of creatures found in this unique area, like the one created by Chennar, all the tamarind-eating creatures, would come together in the same forest and starve? What has given us next?

[00:18:34]So what has the biodiversity of the planet, that is, genetic diversity? Next we have seen diversity of thought? Next what has the biodiversity of the planet, right? What has this given us? So what has the different species of the Earth, different types of life on Earth, for example desert forests and rocky cliffs? Right? What has the biodiversity of the planet, for example desert forests and rocky cliffs? Right? What has the threats to biodiversity, that is, to biodiversity, given us? So what has the extinction of species, hunting, hunting, pollution? Next came the arrival of alien species, right? What has the first species been destroyed, that is, habitat loss, right? Destroying the forests and converting them to agriculture and industry? This is what comes after deforestation, that is, the destruction of forests to make way for agriculture and factories.

[00:19:49]The second is poaching. What happens when people illegally hunt animals for their skin and talons?

[00:19:58]So, there's something called poaching. Next comes pollution.

[00:20:04]Air, water and soil pollution. What would have been the last thing they had given, if not the arrival of alien races?

[00:20:12]What has the arrival of alien species given? If so, when new species that are unrelated to a place are introduced, the extinction of local species. What has the arrival of alien species given?

[00:20:25]When new species that are unrelated to a place are introduced, the extinction of local species. So, if you were to ask what are the traits of living things, i.e. the returns of biota, then what are the traits of living things? Then, destruction, hunting, pollution, then, next, the gifts of alien species, okay?

[00:20:47]Next, what are the protection measures that can prevent that? What are the protection measures that have been provided?

[00:20:49]Internal security, then, national parks, wildlife sanctuaries, etc., to protect them like life, okay?

[00:21:00]What are the protection measures that have been provided? Habitat protection, national parks, and wildlife sanctuaries can be life-saving. Right?

[00:21:15]What are we going to do with the protected creatures that you gave them to live in their natural environment? We are going to protect.

[00:21:16]Right? We are going to protect living beings as they adapt to the natural environment in which they live. What will you do in the next national park? Let's talk about what kind of national parks there are, for example, Kindi. What will the National Park do if those creatures come here and protect and nurture them in their natural environment?

[00:21:35]What will they give us next? This is the wildlife sanctuary, they come here and do this in the Pudumalai sanctuary. Next, they come and protect them like life. Is the Mannar massacre right?

[00:21:46]What will they do if they take this example? The British came here to increase biodiversity, that is, to protect the creatures from that kind of thing, so they gave us a protection system.

[00:21:58]So what kind of protection is there for the inhabitants? There is a national park.

[00:22:02]All the wildlife are protected like life.

[00:22:06]Next, what is wildlife conservation? If so, they protect animals outside their natural habitat. If so, they protect animals outside their natural habitat. If so, what are zoos and botanical gardens? If so, what do zoos say? If so, they take care of animals. If so, what do they do there?

[00:22:31]If so, they take care of animals.

[00:22:34]Next, what do they do in a zoo? Growing tropical plants. What the [ __ ] is going on next? Seed bank. The seeds were stored safely. Okay?

[00:22:43]Now, what we saw before was the internal security of the ball, and this is the external security. Right? What would you give to that? If so, you could have the parks, botanical gardens, seed banks, and young people come to the zoos and take care of the animals.

[00:22:58]What would they do in botanical gardens if they were to grow beautiful plants?

[00:23:01]Next is the seed bank, where you can collect and preserve the seeds.

[00:23:11]Next India's security zone, right? What kind of security zones are there in India?

[00:23:17]That's why they gave its name, which state it is in, and what makes it special. Jim Corbett's name. And so the name came about, Jim Corbett. If you come to the place, where is it? It's in Uttarakhand. What's special about this is that it's India's first national park, right? What is its name? Gin Carbonate. Where is it? Then there is the Undarapala. What's so special about this?

[00:23:38]It's the first national park, right?

[00:23:40]Next, what kind of park is this?

[00:23:43]Kaziranga. If you come to Basing, where is it? It's in Assam. This is a one-horned rhinoceros. There is one in the half-timbered areas here. Okay, next is Mudumalai.

[00:23:54]What are they doing in Mudumalai? Mudumalai is in Tamil Nadu. They come and protect these elephants and buffaloes in this place. Next Mannar bend.

[00:24:02]This too is in Tamil Nadu. They come here to protect marine life. Okay, what are they? There are four in total.

[00:24:09]What are they doing in Jim Corporate?

[00:24:10]This is in Uttarakhand. They say this is the first national park to be built in India. Next Kaziranga will come from here and will be in Assam. They come here and protect the single-headed Naadamalai. Next Mudumalai is in Tamil Nadu. It has come and is here to protect the elephants and the crocodiles. What the hell are we going to do next?

[00:24:28]King's Nets. Where are the king nets?

[00:24:31]If so, they are in Tamil Nadu.

[00:24:33]Protect marine life.

[00:24:42]Okay, so what did we see today?

[00:24:44]So what did we see? So let's see the cell.

[00:24:58]Let's watch a little bit.

[00:25:02]Let's see what kind of cells a plant has. What did we give next? So, let's look at its type, its explanation, and its example.

[00:25:07]What did we see next? So what types of tissues are there in plants? What types of tissues are there in animals? We saw what types of tissues are there in animals.

[00:25:16]What we saw next was the basic stages of life for every living thing. We have seen what living things are: tissues, organs, organ systems, and organisms. What we saw next is an example of that biodiversity.

[00:25:34]What are the key facts that come next?

[00:25:36]So what is the largest cell?

[00:25:38]What is the smallest cell? When did you discover it? Let's see who found it. What did we do next?

[00:25:44]Inbreeding with plants. Okay, we saw how a plant reproduces. We saw the flower's affections circled by pollen, the circle of pollen.

[00:25:51]What is a circle made of pollen, and what is a nail made of race? What if the women came from the Shulaka Circle? What's next, what kind of pollination is happening? What kind of pollination is happening?

[00:26:02]They gave me cross-pollination.

[00:26:04]Self-pollination occurs when a plant pollinates itself. Cross- pollination means that one pollen grain reaches the flowers of another plant. Next, what will this embryo do? If so, the male and female camels will come together and create the embryo. Here, the male camels will come together and create the egg. What will this egg do? If this egg is formed, it will become a seed or a fruit. Next, what will you give to the unfertilized seeds? If so, then a small drop will form from the process of petrol and grow into a new organism. Next Tunda This is a plant body that splits into pieces, each of which will give rise to a new organism. Right?

[00:26:48]Next, if they had told me how to get the seed, what would it be like when it flies in the air, whether it's wind, water, deviations, or explosives, then it would be like a slight deviation from the target. This example is burning and melting.

[00:27:03]What did they say when the water came next? Grape seeds floating in the water.

[00:27:06]What is an example of this?

[00:27:07]Coconut. Next animals.

[00:27:12]Stick to it with the needles and the pockets. Okay, what is an example of that? If so, then it's a dog. If you were to take the problem of explosion and explosion and use it as a tool, you would have given an example of this, such as fenugreek. Next is biodiversity, genetic diversity, and genetic diversity. What can we say next? If so, what about environmental diversity, genetic diversity, etc.? If so, what about the color and height of humans, we have many humans of many colors and many heights. So that's the multifaceted nature of death. Next, if you come across Simbla Palvakula, what are the different types of birds found in a particular area, i.e., the tamarind birds that live in a forest?

[00:27:56]Next, what are the ecological zones?

[00:28:02]Take a look at the different parts of the Earth, look at deserts, forests, and coral reefs.

[00:28:07]How did everything come to threaten the biodiversity?

[00:28:13]Look at deforestation, hunting, pollution, and minerals.

[00:28:18]Next, what are the methods of protecting it?

[00:28:20]If so, it is to protect the natural environment in which living organisms live.

[00:28:26]What are some examples of that? If so, there is a national park. Next are the forest sanctuaries. The next lifeline is in the cave. This is what comes to mind when it comes to outer space protection, what comes to mind when it comes to life, what comes to nature, what What about zoos, botanical gardens, and seed purchases? What's next for India's security forces? That is, what are the most major protected areas in India? If so, Jim Park is in Udpandi. This is the first national anthem to be played in India. Okay. Next, the one that came from Kasilanka is in Assam. This one came and protected the Kandapuris when they were alone. Next up is Mudumalai, which is in Tamil Nadu.

[00:29:09]What kind of a place is this, if they protect leopards and elephants? This royal palace is located in Tamil Nadu.

[00:29:16]They came here to protect marine life.

[00:29:20]Okay, I guess you thought you'd be done with seventh grade biology by today. What are you doing? If you get this call once, we'll definitely watch it again.