DEECET Biology Preparation Practice Bits Part– 2 #deecet2026#decentpreparation#viral#ttc#drkolakiran

Added: 2026-05-09

[00:00:00]Hi viewers, welcome to another season of series of biological science.

[00:00:05]So, but there are many requests of posting English medium.

[00:00:09]And I think that this series will be helping you.

[00:00:12]Right?

[00:00:13]Uh today we'll be seeing biological science. Which of the following organisms take the food by parasitic mode? Plants, dogs, Cuscuta, and leeches.

[00:00:22]You see, uh when you see this one, uh definitely you'll be having a doubt about that one. Cuscuta is a plant which grows on another plant. So, it's a parasite. Parasite means it is depends upon others. The rate of photosynthesis is not affected by light intensity, humidity, temperature, carbon dioxide concentration.

[00:00:44]Humidity doesn't influence that one. All the three are light, temperature, carbon dioxide very important. A plant is kept in dark cupboard for about 48 hours before conducting an experiment in on photosynthesis in order to dash. Yeah, three.

[00:01:01]Uh remove chlorophyll, remove starch.

[00:01:05]Ensure that no photosynthesis occurred, ensure that leaves are free from starch.

[00:01:11]The digestive juice without enzyme.

[00:01:15]Very important. Bile Bile juice is a digestive juice with without enzymes.

[00:01:20]The single-celled animals, the food is taken dash by the entire body surface.

[00:01:26]Which part of the plants takes in carbon dioxide from the air for photosynthesis?

[00:01:32]Which Which part of the plant takes carbon dioxide from the air for photosynthesis?

[00:01:37]Yeah, stomata.

[00:01:40]Autotrophic organisms are which synthesize their own food. Yeah, you all know that one.

[00:01:47]Autotrophic, heterotrophic. The process in which energy is stored from sunlight.

[00:01:53]Yeah, eighth one. It's a photosynthesis.

[00:01:57]Right? Respiration is breaking off the energy. Right? Which of the following is released during photosynthesis?

[00:02:04]So, everybody should know that one.

[00:02:07]Oxygen will be released. Iodine can be used to test the presence of starch.

[00:02:12]Okay?

[00:02:14]10th.

[00:02:15]Photosynthesis occurs in which part of the plant cell?

[00:02:18]Yeah. Well, straight up to 10th class will know that, chloroplast.

[00:02:22]Melvin Calvin got Nobel Prize for his studies on Yeah. 12th. Dark reaction. In photosynthesis, we have light reaction and dark reaction. Plants are green because they reflect, absorb, refract, do not absorb. Okay? Answer is Is it 13?

[00:02:43]Reflect green light. The volume of carbon dioxide in atmosphere is very important one. 14th. Is 0.0003%.

[00:02:54]What is the end product of dark reaction?

[00:02:57]Right? 15th one.

[00:02:59]Carbon dioxide. One of the following activity cannot be performed by animals.

[00:03:04]Respiration, reproduction, and digestion performed, but photosynthesis happens in plants only. Which of the following is a parasite plant? Again, it's Cuscuta. It's the 17th one. The enzyme present in the saliva. Lipase, sucrose, pepsin, ptyalin.

[00:03:20]So, 18th one is ptyalin is present in saliva. Which of the following juice helps in emulsification of fats?

[00:03:30]So, bile juice. Which of the following disease occurs due to protein malnutrition?

[00:03:37]Right? Protein deficiency. What is it that? Kwashiorkor disease.

[00:03:43]Deficiency of retinol, vitamin A, leads to 21. Xerophthalmia. It is related to eyes. Pernicious anemia is caused due to the deficiency of 22 when we see it's B12 thiamine, right? Which of the following is water-soluble vitamin?

[00:04:01]All right, 23.

[00:04:04]Answer is thiamine B1, okay?

[00:04:08]Then coming to 24, what is the role of potassium hydroxide in Moll's half leaf experiment?

[00:04:15]24th It is to absorb carbon dioxide.

[00:04:21]What is the end form of proteins in digestion?

[00:04:26]Amino acids, right? Definitely. End products of light reaction are ATP and nicotinamide adenine dinucleotide phosphate. Where do you find vocal cords? Vocal cords are nothing but which are found in the sound box, which is called larynx.

[00:04:46]I think larynx. Cluster of air sacs in lungs are called alveolus.

[00:04:52]Right? Which of the following is correct?

[00:04:55]If the diaphragm contracts, volume of chest is increased, right?

[00:04:59]Respiration is a catabolic process is breakdown of complex food molecules, right?

[00:05:06]Energy is stored in mitochondria.

[00:05:10]Mitochondria is called powerhouse of cell. Cutaneous respiration is observed in All right, sixth one.

[00:05:17]Earthworm, through skin.

[00:05:20]Maximum rate of respiration takes place is 45°C. What are the energy producing centers in a cell?

[00:05:29]All right.

[00:05:30]Mitochondria. End product of glycolysis is pyruvic acid.

[00:05:36]Ninth.

[00:05:39]Conversion of glucose into pyruvic acid yields net gain of how many molecules of ATP?

[00:05:45]10th.

[00:05:47]Yeah. Two molecules of ATP. Cellular respiration takes place in 11th one.

[00:05:53]Cytoplasm and mitochondria for the oxidation carbohydrate should be in the form of See, 12th one in the form of glucose.

[00:06:03]In which of the following is observed only aerobic respiratory aerobic respiration?

[00:06:09]13th Germinating seeds. Respiration differs from combustion.

[00:06:14]Combustion uh you see 14th.

[00:06:20]Combustion is one process where there is a release of uh what do you say, use of oxygen.

[00:06:27]But here in respiration we see release of heat from several state. Arrange the following respiratory respiratory organs in for example 15th.

[00:06:39]The answer is two.

[00:06:41]For example la four Yeah, four is nothing but nostril, three pharynx, then one larynx, then two trachea, five bronchus, six alveolus.

[00:06:57]Which of the following is known as the energetic currency of cells in biology? 16th ATP.

[00:07:04]Reason for muscular pain is accumulation of 17th.

[00:07:09]See, lactic acid. Gases exchange takes place in lungs.

[00:07:14]From alveoli to blood cap- capillaries takes by process called 18th.

[00:07:21]Diffusion.

[00:07:23]In exhaled air percentage carbon dioxide is exhaled air percentage it is 19th and it's 4%.

[00:07:33]Power house of cell is mitochondria.

[00:07:35]Percentage of oxygen exhaled in air is 21.

[00:07:39]16% Ion present in chloroplast is 22 one. Magnesium is the ion but on doing strenuous exercise blood sample shows more percent of dash in blood.

[00:07:51]23 is lactic acid. Listen for muscle fatigue is presence of dash in blood.

[00:07:59]24th lactic acid end products of fermentation ethyl alcohol and carbon dioxide.

[00:08:06]Right?

[00:08:09]The term cardiac refers to which organ in the body? Heart.

[00:08:13]In which state of the heart uh low is an oxygen. See, 22 right atrium.

[00:08:24]Which structure of the heart control the flow of the blood?

[00:08:27]Three is walls. Which of the following opinion are correct?

[00:08:31]Fourth, three.

[00:08:34]Xylem and phloem cells connect to that form a tube-like structure.

[00:08:38]A an aphid uses into proboscis into the dash to get plant juices. Fifth one.

[00:08:44]See, phloem.

[00:08:50]Right, fifth one. Phloem.

[00:08:54]Plant juices It is not phloem, it is xylem.

[00:08:58]Lymph is a part Lymph is a part of Lymph is a part of digestive system, excretory system, nervous system, transport system.

[00:09:10]So, digestive. Incompletely divided ventricle occurs in seventh, reptile.

[00:09:16]Example for open type of circulatory system.

[00:09:21]Eighth.

[00:09:25]How many of you can guess the answer here?

[00:09:30]Few seconds for you.

[00:09:33]Butterfly.

[00:09:34]Double circulation is present in ninth one.

[00:09:38]Or monkey. Wall present between right atrium and right ventricle.

[00:09:44]10th one, tricuspid wall. Pericardium is associated with heart. Four-chambered heart occurs in When you go for that one, it occurs in birds and mammals. Incompletely divided ventricle is occurs in 13 reptiles. Blood vessels that take oxygenated blood to heart.

[00:10:06]Okay, this is very important. You all know that one. It's pulmonary vein.

[00:10:10]Vena cava in man open into right article.

[00:10:17]A heart attack is caused by the blocking of 16th coronary artery. Pulmonary artery starts from 17th one, right ventricle. Deoxygenated blood from heart is taken into dash, 18.

[00:10:35]Lungs. Right article receives 19th deoxygenated blood. Blood pressure of person is measured by measured by sphygmomanometer.

[00:10:45]The wall present in the beginning of pulmonary aorta and right ventricle is 21, pulmonary wall. System systematic aorta carries 22 oxygen blood. Normal blood pressure of human is 120 by 80, 23rd.

[00:11:06]The substance that prevents clotting of blood vessels is clotting of blood is heparin.

[00:11:14]Vitamin required for coagulation of blood, 25, it's vitamin K.

[00:11:19]Hemophilia is a genetic disorder or See, hereditary and genetic disorder. Which of the following is inherited disorder?

[00:11:29]When you see 27 is thalassemia. Tissue associated with water transport. 28, xylem.

[00:11:39]So, soil water into enter into root hair by process called 28 29.

[00:11:48]For osmosis.

[00:11:50]Right?

[00:11:52]Arrange the following in a sequential order. 30th.

[00:11:56]Yeah, fourth one.

[00:11:57]3 1 2 4 5.

[00:12:00]Root hair, epidermal cells, xylem, xylem and shoot, and stomata. How does water reach 180 m high at the top of tree like loot eucalyptus?

[00:12:14]31.

[00:12:16]Transpiration, root pressure, continuous column of the water. Food transported through phloem, right?

[00:12:23]The excretory organs in cockroach.

[00:12:27]Okay, the excretory organs in cockroach.

[00:12:31]Yeah.

[00:12:36]Second one, it is one Malpighian tubules, right? Which of the following is the correct path taken by urine in your in our body?

[00:12:45]Kidney, ureters, bladder urethra. Malpighian tubules are the excretory organs in housefly.

[00:12:54]Major component of urine is why? Water. Special excretory organs are absent in When you see, sixth one.

[00:13:06]Amoeba. Which of the following hormone has direct impact on urination? Seventh one. It's vasopressin. Right? Amber color to urine is due to urochrome.

[00:13:19]Sequence of urine formation in a frame nephron. When you see, uh glomerular glomerular filtration, tubular reabsorption, secretion. Part of the nephron that exists in outer zone of the kidney Bowman's capsule. After having lunch or dinner, one can feel pass urine because because of stomach pressure on bladder.

[00:13:42]Removal of nitrogen waste from our body.

[00:13:46]12th, excretion.

[00:13:48]Proximal convoluted tubule of nephron lies in 13.

[00:13:53]Three, cortex. Distal convoluted tubule opens into collecting duct.

[00:14:00]Oxygen is considered as waste product in which of the following metabolic processes? Photosynthesis.

[00:14:07]Which of the following waste product of metabolism is most poisonous? 16, ammonia. Connecting link between kidney and urinary bladder is ureter.

[00:14:21]Malpighian body consists of Bowman's capsule and glomerulus. Write in proper order. 19th, four. Hormone which regulate urine, 20, vasopressin is a hormone.

[00:14:37]Major component in uric acid is water. Which of the following anticoagulant mixes with blood blood during dialysis?

[00:14:48]22, heparin.

[00:14:51]In which following organism Malpighian tubules are not excretory organs?

[00:14:56]Right, 23, it's earthworm. Chief excretory waste removed by lungs is carbon dioxide. 24.

[00:15:08]Good morning, sir. Yeah. Nicotine Nicotine is present in which part of the tobacco? Leaves.

[00:15:17]Right. We find tannins in which of the following plant.

[00:15:23]Cassia. Chewing gum made of chickle, which is natural. 27.

[00:15:28]Two, latex.

[00:15:31]All right, viewers. We tried to have three chapters from 10th class, so that it will be useful for you. Trying to focus on basic basic biological science, and I think that this will be helpful for you for the examination. Try to load some more in coming days. So, hope that this will be working out with you. Signing off, your Dr. Kola.

[00:15:49]Bye-bye.

[00:15:51]Thank you, sir.