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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
Explain cyclic phosphorylation along with its pathway |
| Answer» Not possible to do it here | |
| 502. |
Structure of diffusion membrane related to respiration in humans |
| Answer» | |
| 503. |
What is the meaning of mesodermal origin?How it forms? |
| Answer» Mesoderm\xa0is a primary gum layer of the embryo lying between the other two gum layers namely ectoderm and endoderm. From it arises all connective tissues. From this definition The part that is of\xa0mesodermal origin\xa0is teeth.\xa0The\xa0mesoderm\xa0gives rise to the skeletal muscles, smooth muscle, blood vessels, bone, cartilage, joints, connective tissue, endocrine glands, kidney cortex, heart muscle, urogenital\xa0organ, uterus, fallopian tube, testicles and blood cells from the spinal cord and lymphatic tissue\xa0 | |
| 504. |
What is offset? |
| Answer» A type of modification of stem e.g are eichornia ,pistia | |
| 505. |
Kingdom monera decided into how many groups name them? |
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Answer» Eubacteria ,archaebacteria,blue green algae,mycoplasma *Eubacteria It is decided into two groups. -Archaebacteria-Ehbacteria |
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| 506. |
What happens if an animal dies in a forest |
| Answer» It is decomposd by parasites | |
| 507. |
How ribosomes synthesis proteins i need full mechanism. And the total number of ways |
| Answer» | |
| 508. |
Name the peptide hormone which place a major role in glucose homeostasis? |
| Answer» Insulin is a peptide hormone, which plays a major role in the regulation of glucose homeostasis. Insulin acts mainly on hepatocytes and adipocytes (cells of adipose tissue), and enhances cellular glucose uptake and utilisation. As a result, there is a rapid movement of glucose from blood to hepatocytes and adipocytes resulting in decreased blood glucose levels (hypoglycemia). Insulin also stimulates conversion of glucose to glycogen (glycogenesis) in the target cells. | |
| 509. |
What is neumatophores? |
| Answer» It is pneumatophorus. In the marine and aquatic areas the trees and plants are present have diffrent typ of respiration becouse the soil of marine area are full of water or after the first layer of soil their is only water so plant can not do gasses exchange or respiration . That is why they start to modify their roots and come out from the soil in the form of big spines to do the process of respiration . And the spines like structure of roots which are out of the soil is called pneumatophorus??? | |
| 510. |
What is fluid mosaic model? |
| Answer» Fluid mosaic model:\tFluid mosaic model was proposed by Singer and Nicholson.\tAccording to this model, there is a central bilipid\tlayer of phospholipids with their polar head group towards the outside and the non-polar tails pointing inwards. ,\tSome proteins which are embedded in the lipid layer are called integral or intrinsic proteins and they cannot be separated from the membrane.\tThere are large globular integral proteins which project beyond the lipid layer on both the sides are believed to have channels through which water- soluble materials can pass across.\tSuperficially attached proteins are called extrinsic or peripheral proteins and can be easily removed.\tSome membrane lipids and integral proteins remains bound to oligosaccharides which project into the extracellular fluid and influence the manner in which cells interact with one another.\tThere are certain specific proteins called membrane receptors, which mediate the flow of materials and information into the cell. | |
| 511. |
What is the structure of protein? |
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Answer» \tPrimary structure\tLinear sequence of amino acids in a polypeptideThis sequence is determined by genes and hereditary material, DNA. Correct sequence is important for proper functioning.\t\t\tSecondary structure\tPrimary structure does not make a protein functionalDue to interactions with immediate neighbors, polypeptides tend to fold into pleats or wrap into coils forming the Secondary structure Polypeptides folding into coils form alpha-helix structurePolypeptides folding into plates form beta-plated structure. This structure is less stable than alpha-helix structure.\t\t\tTertiary structure\tBonds between neighboring amino acids results in further folded structureTertiary structure depends upon the primary structureCreates active sites of enzymatic proteinsSome of the tertiary structures are spherical forming Globular proteins; while some others are like long fibers forming Fibrous proteins\t\t\tQuaternary structure\tMultiple chains of polypeptides held together by hydrogen bondsProteins with multiple chains of polypeptides only have this structure\t\t Get the structure of protein io page no 150 of NCERT book figure no 9.3 and 9.4 |
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| 512. |
What is vernalisation? |
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Answer» Vernalization ; It is the treatment of low temperature for reducing vegetative phase and hastening the reproductive phase. It was first discovered by Lysenko.Vernalisation refers specially to the promotion of flowering by a period of low temperature. For example - Subjecting the growing of a biennial plant to a cold treatment stimulates a subsequent photoperiodic flowering response. The low temperature treatment given to the seeds or seedlings to induce early flowering is known as vernalisation. |
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| 513. |
Most abundant enzyme in the biosphere ??? |
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Answer» Rubisco Rubisco Carbonic anhydrase Ribulose 15 bisphosphate carboxylase oxygenase is the most abundant enzyme in the biosphere. |
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| 514. |
Mycoplasma are ........….........….. negative |
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Answer» Gram negative Gram negative |
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| 515. |
What constitute the cambium ring |
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Answer» Cambium, plural Cambiums, orCambia, in plants, layer of actively dividing cells between xylem (wood) and phloem (bast) tissues that is responsible for the secondary growth of stems and roots (secondary growth occurs after the first season and results in increase in thickness). Study karle fail ho jayega sexe |
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| 516. |
Whats is a biological name of wheat |
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Answer» Tritium aestivum Triticum aestivum |
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| 517. |
What is meant by haemocoel ? Name the phylum which shows this feature??... |
| Answer» Haemocoel : blood flows in coelm( open space or chamber)arthropoda shows haemocoel | |
| 518. |
Name the monomer linked by peptide bond |
| Answer» A peptide bond is a\xa0chemical bond\xa0formed between two molecules when the\xa0carboxyl group\xa0of one\xa0molecule\xa0reacts with the amino group of the other\xa0molecule, releasing a\xa0molecule\xa0of water (H2O). This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.\xa0Peptide bonds\xa0(also known as\xa0amide bonds) are the\xa0bonds\xa0that are found between two\xa0monomer units\xa0of amino acids in a\xa0polypeptide\xa0chain. They are created through condensation reactions in which a molecule of water (H2O) is removed. | |
| 519. |
Important topic in biology |
| Answer» | |
| 520. |
Which reference book is good for class 12 biology?? Plzz rply me |
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Answer» Ncert Modern publishers |
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| 521. |
What are the hirmones secreted by gastri intestinel tract |
| Answer» Gastrin: Secreted from the stomach and plays an important role in control of gastric acid secretion. Cholecystokinin: A small intestinal hormone that stimulates secretion of pancreatic enzymes and bile. | |
| 522. |
Important topic s in book |
| Answer» | |
| 523. |
Important topic all chapter |
| Answer» C3 C4 cycle, cardiac cycle, heart root, enzymes of digestion, glycolysis,light and dark reaction,biological fixation,nitrogen cycle, macro and micro nutrients,apoplast ,symplast,chapter 11 ki definitions,no of chromosomes in each stage of mitosis and meiosis,chapter 6 n 8 diagrams, monocot n dicot ,xylwm phloem, modification of roots | |
| 524. |
What is Venetian |
| Answer» Clasifying flowers on the bases of their structure | |
| 525. |
Morphology of frog |
| Answer» Deleted from cbse sylabus | |
| 526. |
What is myasthenia gravis |
| Answer» Disfunctioning in muscles contraction due to lackness of calcium Ions. | |
| 527. |
Life cycle of gymnosperms? |
| Answer» Gymnosperm, any vascular plant that\xa0reproduces\xa0by means of an exposed seed, or ovule—unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of many\xa0gymnosperms\xa0(literally “naked seeds”) are borne in cones and are not visible until maturity. The\xa0life cycle\xa0of a\xa0gymnosperm\xa0involves alternation of generations, with a dominant sporophyte in which the female gametophyte resides, and reduced gametophytes. All\xa0gymnosperms\xa0are heterosporous. The male and female reproductive organs can form in cones or strobili. | |
| 528. |
What is Epithelial tissue |
| Answer» It is one of the 4 basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. | |
| 529. |
Important topics for class 11 biology |
| Answer» | |
| 530. |
What is the significance of pneumotaxic centre in breathing? |
| Answer» Increases respiration rate but decreases the depth. Causes evaporation from respiratory membrane. Colling effect is like panting effect in dogs | |
| 531. |
Describe the function of lungs and skin in excretion |
| Answer» Role of the lungs:Lungs help in the removing waste materials such as carbon dioxide from the body.Role of the skin:\tSkin has many glands which help in excreting waste products through pores. It has two types of glands – sweat and sebaceous glands.\tSweat glands are highly vascular and tubular glands that separate the waste products from the blood and excrete them in the form of sweat. Sweat excretes excess salt and water from the body.\tSebaceous glands are branched glands that secrete an oily secretion called sebum. | |
| 532. |
Define harmone |
| Answer» Hormones are the chemical messengers which are secreted by endocrine system of the body and is released directly in blood | |
| 533. |
Can anyone explain mass flow hypothesis in short |
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Answer» Yogita ingle ans de na The theory behind Mass flow hypothesis which is also called as pressure flow hypothesis describes the movement of sap via phloem, proposed by the German physiologist Ernst Munch in 1930. A highly concentrated organic sugar especially sugar in the cells of phloem from a source like a leaf forms a diffusion gradient which draws water in the cells from adjacent xylem. This develops turgor pressure in the phloem which is also called as hydrostatic pressure. |
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| 534. |
How many types of meristem tissues are present |
| Answer» There are three primary meristems: the protoderm, which will become the epidermis; the ground meristem, which will form the ground\xa0tissues\xa0comprising parenchyma, collenchyma, and sclerenchyma\xa0cells; and the procambium, which will become the vascular\xa0tissues\xa0(xylem and phloem).\xa0There\xa0are three\xa0types of meristematic tissues: apical (at the tips), intercalary (in the middle), and lateral (at the sides). At the\xa0meristem\xa0summit,\xa0there\xa0is a small group of slowly dividing cells, which is commonly called the central zone. | |
| 535. |
What is meristems |
| Answer» Meristematic tissue or meristems, as they are also called are tissues that have the ability to enlarge, stretch and differentiate into other types of cells as they mature. The cells of this tissue are generally young and immature, with the power of continuous division. | |
| 536. |
Refer the page no. where the word \'Algal bloom\' and its significance is typed.. |
| Answer» High quantity of nitrates abd phosphates in water bodies due to surface run off leads to algal bloom | |
| 537. |
What is circardian???? |
| Answer» A circadian rhythm is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria | |
| 538. |
What is oogamaus? |
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Answer» The gametes similar in structure as well as function are oogamous I dont know sorry |
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| 539. |
What is five kingdom classification |
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Answer» MoneraProtistaFungiPlantaeAnimalia R.H Whittaker |
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| 540. |
Difference between monocot root and dicot root |
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| Answer» The characters which distinguish the classes. | \tFlower parts\xa0in\xa0multiples\xa0of\xa0threeFlower parts\xa0in\xa0multiples\xa0of\xa0four or\xa0fiveMajor\xa0leaf veins parallelMajor\xa0leaf veins reticulatedStem vacular bundles scatteredStem vascular bundles\xa0in\xa0a ringRoots are adventitiousRoots develop from radicle\t | |
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| 541. |
Short note on algal blood |
| Answer» An algal bloom is an accumulation of algae (typically microscopic) or a rapid increase in their amount in a body of water. Algal blooms may occur in fresh water as well as salt water. Algal bloom concentrations may reach millions of cells per milliliter of water. Algal blooms are often green, but they can also be other colors such as yellow-brown or red, depending on the species of algae. So-called algal blooms are often caused by Cyanobacteria such as Aphanizomenon flosaquae, which are no longer considered to be algae. Some kinds of algal blooms, such as red tides, are poisonous.Algal blooms are often caused by eutrophication. Eutrophication occurs when abnormal amount of nutrients, especially phosphorous and nitrogen, enter a body of water. Algal blooms are a big problem to ecosystems because, like any sudden unnatural growth, it harms the other animals in that ecosystem, usually decreasing their numbers quickly. | |
| 542. |
Definition of viroids |
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Answer» it is low molecular Wight , it is smaller in size than virues They have RNA and lacked protein coat hence cld as viroids |
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| 543. |
How many of you are expecting 60+ marks in biology out of 70 . |
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Answer» I m feeling that i am going to fail Me Me |
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| 544. |
Strategy for neet preparation in 12 th give timetable . |
| Answer» For preperation of Neet ... ● understand basic concepts . ● don\'t take any burden . ● You should regular in studies ... and your sitting must be for min. 3 hours without any distraction ... after that 15 min. Break .... then again sit for study .... ●Don\'t try to follow 3-4 books at a time . Just follow one book at a time ... ●Don\'t try to tell everybody that you are preparing for neet ... people are enough to distract your mind . So , keep it as a secret .. ● It will be a great task for you to prepare for neet as well as board exams . So , don\'t be panic in tough situations . Keep yourself motivated . ● If you want a time table then ... I suggest you to prepare it yourself ... because you know beter than us that what you must need in your routine. HAVE A GOOD LUCK !!!? | |
| 545. |
Name any four connective tissues |
| Answer» Blood,bone,cartilage, lymph | |
| 546. |
Tired of studying right |
| Answer» Yss 2 mch of syllaby And A bulk of tests | |
| 547. |
Differentiate between pisces and tetrapoda |
| Answer» The pisces include the fishes which have paired appendages known as pectoral and pelvic fins. They respire by gills and have dermal scales which form the exoskeleton. The tetrapoda include the amphibian, mammalian, reptilian and aves which have paired appendages as a five digit limb. They respire by lungs and have epidermal scales, feathers and hairs which form the exoskeleton. The heart of fishes is 2 chambered. They have internal ear but do not have the internal nares. The heart of tetrapoda can be 3 or 4 chambered. They have middle, internal and external ear and also have the internal nares. Fishes are aquatic but tetrapoda can be aquatic or land living. | |
| 548. |
Generation and conduction of nerve impulse. |
| Answer» The axon or nerve fibres are in the form of a cylinder wherein the interior of the axon is filled with axoplasm and the exterior is covered with axolemma. The nerve fibres are immersed in ECF. The solution is in the ionic form that is present in axoplasm and extracellular fluid or ECF.Outside the axon, the negatively charged chloride ions are neutralized in the presence of positively charged sodium ions. Negatively charged\xa0protein\xa0molecules are neutralized in the presence of potassium ions within the axoplasm.\xa0The membrane of a neuron is -ve inside and +ve outside. Resting potential would be the difference in charge. The difference in charge might vary from seventy to ninety millivolts, as a result, the membrane would be polarized. Sodium potassium pump operates to keep resting potential in equilibrium.The pump is placed on the axon membrane. Now the potassium ions are pumped from ECF to axoplasm and sodium ions are pumped from axoplasm to ECF.The sodium-potassium pump stops operating when a stimulus is applied to a membrane of a nerve fibre. The stimulus could be either electrical, chemical or mechanical. The potassium ions rush outside the membrane and sodium ions rush inside the membrane as a result negative charges are present outside and positive charges are present inside.The nerve fibres are either depolarized or they are said to be in the action potential. The action potential travelling along the membrane is called the nerve impulse. It is around + 30 mV. The sodium-potassium pump starts to operate once the action potential is completed. As a result, the axon membrane will obtain a resting potential by repolarization.Now the process takes place in reverse order. It is a reversal of the process that has taken place during an action potential. Here, potassium ions will be rushed inside and sodium ions will be rushed outside. Impulse would not be transmitted through the nerve fibre during the refractory period.In the case of white fibres, saltatory propagation takes place. That is impulse jumps from node to node and it increases with increase in the speed of nerve impulse. It is around twenty times faster compared to that of the non-medullated nerve fibres. The transmission of nerve impulse would rely upon the diameter of the fibre. For instance, the nerve impulse of a mammal is one twenty meters per second whereas nerve impulse of a Frog is 30 meters per second. | |
| 549. |
Why testis are hung inside the *******? |
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Answer» Bcoz body temperature is higher than testis which is not suitable for male germ cells so it is placed lower the body in scortum.... ******* |
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| 550. |
Countercurrent mechanism |
| Answer» Using energy for creating concentration difference | |