 Question 4, growth of pollen tube towards ovule is called phototropism, geotropism, hydrotropism and chemotropism. Very easy question, everybody should give the correct answer. Growth of pollen tube, you have to tell the tropic movement here, phototropism, geotropism, hydrotropism or chemotropism. So here are your answer, option number D. Let's go for the explanation. Chemotropism, chemotropism means movement of the plant body towards chemicals. So if we see the structure, we will see this is a stigma, style and ovary. So this pollen tube that is entering inside, it will move towards the ovule. That is for the process of fertilization. So there is a chemical that is released by ovule and this chemical will attract the pollen tube towards itself. So the movement of plant body or plant body part towards the chemical is known as chemotropism. Other option does not suit. Moving to the leaderboard once again, what are your scores, let us see. So Surya is with 3597 points. Let us move to another question. Question number 5, which is statement is incorrect about auxins? You have to tell the false statement about the hormone auxin. They promote the growth of fruit. They promote the growth of shoot. They influence the formation of flower and ripening of fruit. And option number 4 is they inhibit the growth of root. Four options are there, still 15 seconds are left. Correct about auxins, please see the question properly. Most of you have given wrong answer. Okay, let us discuss the answer. They inhibit the growth of root. This is correct. Incorrect, you have to choose incorrect one. So they will not inhibit, they will promote shoot and root growth. Oxins are growth promoter and it will promote the growth. Ma'am but many say that A is the correct option. So maybe there is some problem. Relax. They will promote the growth of root but in the opposite case. The question is, relax. You are moving to the leaderboard. Go back to the question please. Thank you, relax. The question is which statement is incorrect about auxins? Azalji can you please re-explain that? Some students had doubt in that. Please re-explain it. The incorrect means what is not correct that is false. So they inhibit the growth of root. Actually auxin is a growth promoter. It's not a growth inhibitor. So the meaning of promoter is that they will promote the root and shoot development. But here it is written they will inhibit. So this is not correct. So the correct answer will be option number 4. If you remember we have discussed in class growth promoter and growth inhibitor. This will be correct when we will see which is the excessive auxin. That is the hormonal regulation. Exactly. Azalji one second. Can you hear me? Yes sir. So actually your explanation is correct. The answer marked is wrong. Here. I will request can this be excused because for the first time her going back and editing like I do that on spot will be a problem. Please show. Thank you very much. Thank you very much for the understanding. Please proceed. No problem. Clear to them. Okay sir. No problem. Very easy. Comfortable. Please proceed. Please proceed. So let us move to another question. I hope it is visible. It's going to visible. Question number 6. The waste materials in plant are stored in the form of option is water option to with gums and raisins. Option 3 is minerals and option 4 is sugar. Waste material in plant is stored in the form of 12 seconds are left. Time is up. Option B is the correct answer and most of you have given the correct answer. Let me explain. See gums and raisins. They are the excretory products that is stored in the vacuum that is the excretory organ of the plant cell and by the help of vacuum they will come out and they are very much economically useful for the human mankind. Water, mineral and sugar. Sugar is a, you can say it is in the form of glucose molecule. So it is not a waste material. Mineral is also not a waste material and water is present almost for more than 40% in plants. So it's also not a waste material. So option is second. That is the correct. Let us see the leaderboard. So Aryan Tandon with 5459 points. Okay, next question. Which is the correct sequence of air passage during inhalation? Inhalation means breathe in. We are talking about inspiration. That is the first step of breathing in respiration. You have four options along with the arrows. You have to choose the correct sequence of the passage of air. Nostrils, larynx, pharynx, trachea, lungs. Nasal passage, trachea, pharynx, larynx and lvuli. Larynx, nostrils, pharynx, lungs, trachea. Nostrils, pharynx, larynx, trachea or lvuli. Try to learn the diagram of lung. Then you will get the answer. Option D. Most of the student have given that answer. Now let me explain it. If we see the respiratory system. So it will be like this. By the help of the diagram you will understand also. Here is the nostrils. So moving towards the nose that have the nostrils. Then here will be pharynx that is a respiratory. Common respiratory as well as digestive organ. After this there will be larynx that is known as voice box. Then trachea that is known as wind pipe. And in the last lungs and then lvuli. So this is the correct answer. So this is the correct answer. I hope everybody understood. So let us see the leaderboard. Once again, a star in Pura and then Surya. This is the sequence. Moving towards the next question. The form in which most plants absorb nitrogen. Plant want nitrogen. That is a macro nutrient. So option you have 4. And then there is 4 option for this. That which one is correct. So protein, nitrate, nitrite, urea, atmospheric, nitrogen. So the option 1st and 3rd, 2nd and 3rd, 3rd and 4th and 1 and 4. Option B. This one 2 and 3. That is nitrite, nitrate and urea. So urea everybody know we used to give to our plants so that they can have better growth. And in involvement they will absorb nitrites and nitrates. So these two are not the correct. So let's see about the leaderboard. So you can see the leaderboard. It's visible also. Moving to the next question. The main thinking part of the brain is 4 brain, mid brain, hind brain or medulla oblongata. Thinking part of the brain. 4 brain, mid brain, hind brain or medulla oblongata. Already we have done in class. Time is going to finish. Thinking part of the brain. Most of you have given the correct answer. 4 brain. If we move to the question. This one. This 4 brain is also known as prosensifalon. This part of the brain that is if we make the diagram. So it is like this. Here will be medulla oblongata. Now it's clearly visible. So this anterior part is known as 4 brain. This is also known as prosensifalon. It will deal with the activities like thinking, reasoning, memory and intelligence. So this was about the explanation. Let's go to the next question. Activities like walking in a straight line. Riding a bicycle. Picking up a pencil or controlled by. You have to once again go with the brain part. Cerebrum, cerebellum, medulla oblongata or spinal cord. Cerebrum, cerebellum, medulla oblongata or spinal cord. Balancing activity. Here is asking in the question. Riding a bicycle. Picking up a pencil. Moving in a straight line. Or walking in a straight line. Very easy question. So let's go for the explanation once again. Cerebellum is the second part. After cerebrum it is cerebellum only. That will help in the balancing of the activity. All the balancing function. Either you are moving on the road in a correct way or not. Picking up a pencil. Then riding a bicycle, riding a car, riding a scooty, whatever. All the balancing activities are done by cerebellum. Medulla oblongata, brainstem, they are going to brainstem have an important role in breathing. Controlling the breathing rate or respiration. Spinal cord is a cord-like structure. So it will never be the answer. So the correct option is cerebellum. Most of you have given the correct answer. Moving toward the linear mode, let us see the score. Question number 11. The element required for the thyroid gland to make thyroxine hormone is this. Last year also I have discussed. I remember when you were in 9th. Calcium, phosphorus, iodine or magnesium. Calcium, phosphorus, iodine and magnesium. Development of thyroid gland so that they can make more and more thyroxine. Time is up. Iodine is the only element that is needed to be present in the water or whatever food that person is having so that the thyroid gland that is present in the neck region, they can release more and more thyroxine. And just because of the more and more thyroxine there will be development in the body. So these all are not going to be related with the thyroxine hormone. So leaderboard is here. Next question we are going to see on our screen is which of the following statement is or are true. Sudden action in response to something in the environment is called reflex action. Sensory neuron carries signals from spinal cord to muscles. Motor neurons carry signals from receptors to spinal cord. The arc through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc. 4 option 1 and 2 is correct or 1 and 3 is correct. Sudden action in response to something is known as sudden word is given. The path by which the messages are going to travel from one part of the neuron to another part and then to the organ of response is known as reflex arc. Sensory neuron will carry the signals from spinal cord to muscles. This is not correct. This is also not correct. So those who have to answer 3 that is correct. 1 and 4 is correct. To the next question, adrenal glands are located above these organs. I hope the question is visible. Adrenal glands are located above these organs. Kidney, lungs, stomach, intestine. 4 option are there. Kidney, lung, intestine and stomach. Very easy question this is. The answer is hidden in the word adrenal gland. So most of you have given the correct answer. Kidney everybody know is a bean shaped structure and this kidney are two in number in case of human being and above this kidney there is a triangular shaped gland that is known as adrenal gland that will release the hormone adrenalin. This was the explanation. Very easy question. See this question. What is the correct direction of flow of electrical impulse? You have to see this carefully because I hope you will give me the correct answer. Neurons are there two neuron and you have to choose the direction. See carefully correct direction of flow of electrical impulses. Okay, so people are confused into option A and C. C is the correct answer. Now let me give you this one. If you remember I have told you when we have discussed the structure of the nerve cell that there are two nerve cell. So there is a gap that is synapse. So always remember suppose this is a nerve cell having the exon and ending. So this let me choose red color. So the electrical signals that is in the form of nerve impulses are moving like this then they will reach to the exon ending and then there is a synapse and then they will move to the dendrites of another. So option three is correct. Exon ending will give the messages to the dendrites and that is the correct sequence and other three does not have this sequence. So option three is correct. This is the leaderboard. Aryan, Sneha and then Aditi. Question number 15. You have to choose the correct match. Column one column two. I hope this is also easy but don't get confused because there are four option and you have to see the options correctly on the board. So don't waste your time. Choose the correct match. Floem, nephron, veins and platelets time is going to finish. Option A. Okay, so let us see. M is going to deal with the translocation of food. Nephron. Filter that will help in excretion. So B is P. Veins will carry the deoxygenated blood and platelets will help in blood clotting. So this is the correct sequence. Any doubt? So this question was from Life Processes. Very easy question. Moving to the next question. Vein is visible. Here also you have to choose column one. Column two is there. Autotropic nutrition, heterotropic nutrition, parasitic nutrition, digestion in food vacuoles. All the four options. This is from Life Processes. Everybody should know this answer. Option number B. So, Autotropic nutrition is for green plants, heterotropic nutrition, parasitic nutrition. Let us see first leech, digestion in food vacuole, then the last we get the deer. Heterotropic nutrition. So this was very easy. Doesn't need much of the explanation. Yes, from next time I will take care. You will get enough time for these questions. So, nutrition is focus. Consider the following statements. There are two statements A and B. Herbivore is an animal that feeds on both plants and animals. Isation is the process of passing out undigested component of food. Which of these statement are correct? A only, B only, both A and B neither A nor B. This is very easy. I don't think so. We need little more time. Time is up. Let's go for the explanation. Conceive which of this are correct? So, B only, because everybody know exit of food material, which type of food material, something that is undigested. Herbivore is an animal that feeds on both and no, no, no, it should be omnivores. So B is the correct. Moving to the next question, see the leader board, what is the score? Everybody look towards your screen. Consider the following statements. Four brain is the center of intelligence, control, movement and hearing. Control and coordination are function of nervous and endocrine system. Which of this statement is or are correct? A only, B only, both A and B neither A nor B. Everybody should give the correct answer, because we have already discussed. Today only we have discussed. In the Scamon only few things we have discussed. Four brain is the center of intelligence and then control, coordination, second point. Option C, let us see. Brain, I have told you when I was discussing pros and ciphalon that they will responsible, they are for intelligence, memory, reasoning, movement, hearing and when we go with option B, control and coordination is done by both nervous as well as endocrine system. This is true and this is fast. So both A and B. Pros and ciphalon is the another name of four brain. P-R-O-S-C-N-C-E-P-H-A-L-O-N Yeah, correct Momita. So let us see the leader board. What are your score? Surya is now at the last Sneha Aditi R-N-R Okay, okay, Sneha. Yeah, Cereblum have also another name, meson ciphalon. Question number 19 Consider the following statements. Oh, it's Adit, okay, sorry. Screen is frozen. Yes, Achal Ji, please. Please, screen. Time up. 34 people answered it right. Okay. No problem. Yes, I can see it. So let's go for the explanation. Question number 18 and this was immediate response to stimulus is shown by Mimosa Pudika. Correct? Stems are positively geotropic? No. While boots are negatively geotropic? No. So this B statement is not correct. A is correct. Mimosa Pudika is also touch me not. So next question we are going to start just question number 20. Consider the following statements. Excretion is the filtration under pressure of a small particle solute and solvent who are finely porous membrane and aerobic respiration is step wise complete oxidative breakdown of respiratory substrate into carbon dioxide and water with the help of oxygen that acts as a terminal oxidant. Which of the statement is or are correct? Statement A is correct only. Statement B is correct only. Both are correct. Both are wrong. This is also easy but common sense need time is up. Option D Okay. Let me go. Neither A nor B. Excretion is a filtration under pressure. First of all during excretion there is nothing like pressure okay. Anaerobic respiration step wise complete oxidative. Why it is oxidative when it is anaerobic? When it is anaerobic it is due to lack of oxygen. Yeah very good. It is tubeless secretion. Here it should not be pressure and here anaerobic and oxidative both are completely opposite. Both the statements are wrong. So this is the correct option. Let us go to the leaderboard. So finally poor poor of 16,105 points NPSRNR Congratulations. Everybody can see your score after poor of there is NEHA then RN So this is for today. Congratulations poor of the questions were easy. First question they got messed up and one more with wrong answer. Is it visible? I can see the screen. It's visible. So very thank you to all of you. Thank you. Thank you Aditi. Okay so bye bye. Take care everybody. Congratulations poora.