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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.
| 2451. |
Growth is charateristic property of 1 living 2 non living 3 both |
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Answer» Living things..... Obviously Living things |
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| 2452. |
Growth is characteristic property of Living Non living Both None . |
| Answer» Growth is a non defining property for the living. Hence characteristic property of nono living. But a property shkwn by both. | |
| 2453. |
Result kub ane wala hai |
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Answer» From 1st July to 15th July What a joke May be after two months..... |
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| 2454. |
Who write ncert Book of biology |
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Answer» Mehdergarh Haryana |
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| 2455. |
What is mycoplasma |
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Answer» Thanks i am very confused It is a name of bacteria |
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| 2456. |
Biology subsy asan hai |
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Answer» Yes we are all right Guys u all are right....? Ha PCB Ap bhi bio ki student ho PCB me yhi sbse easy subject h bss padhna h ✌✌ |
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| 2457. |
Name two important drugs that are produced as secondary metabolites in plants |
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Answer» Ha Hi Kavya Ky aap Bio hi lena chahte ho Nicotine & cocaine |
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| 2458. |
Name the two types of taxonomic keys |
| Answer» A key is a scheme for identificaion of animals and ji plants which is based on contrasting characters. Taxonomic keys are useful in identification of unknown organisms.They are analytical in nature. They are of two types :(a) Yoked or Indented key, (b) Bracketed key. | |
| 2459. |
What is asepate and conenoytic |
| Answer» \tSome hyphae are continuous tubes filled with multinucleated cytoplasm, these are called coenocytic hyphae and others have septae or cross walls in their hyphae.\tThe cell walls of fungi are composed of chitin and polysaccharides. | |
| 2460. |
Who is the writer of ncert biology 11th book |
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Answer» NCERT Book ke firest page pe writer ka naam ha Writer se ky krna You can check the acknowledgement page |
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| 2461. |
what are neurosomes |
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Answer» a structural unit of a eukaryotic chromosome, consisting of a length of DNA coiled around a core of histone protein. we can say nucleosomes make chromosomes One of various small particles in the cytoplasm in neuron |
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| 2462. |
What is fruiting body? Name the fruiting body found in Phycomycetes ? |
| Answer» The fruiting body of Penicillium is a cleistothecium. A cleistothecium is the proper name for a closed, spherical ascocarp. Within the ascocarp, asci are housed. Each asci carries around eight ascospores, which are formed through sexual reproduction of ascomycetes (a type of fungus). | |
| 2463. |
Write two elements which act as coenzyme ?? |
| Answer» A coenzyme requires the presence of an enzyme in order to function. It is not active on its own.Examples of coenzymes include the B vitamins and S-adenosyl methionine. | |
| 2464. |
Name a Polysaccharide/polymer containing fructose as a building blocks/monomer |
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Answer» Hi Meghna Polysaccharides are polymeric carbohydrate structures, formed of repeating units either mono- saccharides( e.g., glucose , fructose , galactose) or di-saccharides ( e.g., sucrose, lactose) joined together by glycosidic bonds. They range in structure from linear to highly branched. Examples include storage polysaccharides such as starch and glycogen, and structural polysaccharides such as cellulose and chitin. Polysaccharides contain more than ten monosaccharide units. |
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| 2465. |
Describe three types of plant life cycles in brief |
| Answer» 3 life cycle patterns are here: 1. Haplontic 2. Diplontic 3. Haplo-diplonticHaplontic- sporophytic generation is\xa0represented by one celled zygote. There are no free living sporophytes. Meiosis in the zygotes results in the formation of haploid spores. The haploid spores divide mitotically and form gametophyte. The dominant photosynthetic phase in such plants is free living gametophyte. This kind of life cycle is haplontic.Diplontic-\xa0Diploid sporophyte is dominant photosynthetic phase. The gametophyte phase is represented by single to few celled haploid gametophyte. This kind is called diplontic.Haplo-diplontic-\xa0both phases are multicellular and exhibit an intermediate condition. They differ in their dominant phases. | |
| 2466. |
What is Parenchemy?? |
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Answer» Yes it is correct the functional tissue of an organ as distinguished from the connective and supporting tissue is called parenchemy |
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| 2467. |
Explain Annelida.... |
| Answer» \tThe body surface of Annnelids is distinctly marked out into segments or metamere and, hence, the phylum name Annelida.\tThey exhibit organ-system level of body organization, bilateral symmetry,they are triploblastic, metamerically segmented and coelomate animals.\tAquatic annelids possess lateral appendages called asparapodia. For example- Nereis\tNephridia help in osmoregulation and excretion.\tNeural system consists of paired ganglia connected by lateral nerves to a double ventral nerve cord.\tReproduction is sexual.\tNereis, an aquatic form, is dioecious, but earthworms and leeches are monoecious.Examples - Nereis, Pheretima (Earthworm) | |
| 2468. |
Define taxon ?? |
| Answer» Taxon is a rank of taxonomic hierarachy. Example as : kingdom is comes in 1st rank and order comes in 4th rank and so on | |
| 2469. |
How food us absorbed from intestine |
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Answer» With the help of villi With the help of villi present in our intestine . They (villi) absorb and passes to large intstine By villi |
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| 2470. |
Is species cannot be reproductively isolated. |
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Answer» Yes they are reproductive. It can be reproductively isolated |
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| 2471. |
Examples of biomolecules |
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Answer» Ap 11th class may ho Biomolecules are the molecules present in a living organism. These biomolecules are fundamental building blocks of living organisms as they support the biological processes essential for life. Eg carbohydrates, proteins, nucleic acids, lipids, vitamins, etc. |
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| 2472. |
Please tell any example of biological stimuli in plants . |
| Answer» Example :mimosa plant (touch me not).whennwe touch it response through falling the leaves. Through phototropism process also include in this for doing this. | |
| 2473. |
Self conciousness is the defining property of living organisms or only human being. |
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Answer» Living are conscious as they feel and react towards something. But machines which are non living also react and do work for action . Only human beings |
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| 2474. |
Name of the scientist who gave first scientific classification of organisms. |
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Answer» First scientific classification of two kingdom (Animalia and plantae ) was given by Aristotle Yes sir but i searched on google it was showing carolus Linnaeus. |
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| 2475. |
Which organism is called joker of plant kingdom? |
| Answer» Ya ots true mycoplasma may be | |
| 2476. |
Name the book written by carolus linneus |
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Answer» yes it was Systema Naturae It was Systema Naturae Linnaeus\' book was called Systema Naturae. |
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| 2477. |
Explain secondary growth in dicot roots. |
| Answer» Secondary growth in roots\tIn the dicot root, the vascular cambium is completely secondary in origin.\tVascular cambium originates from the tissue located just below the phloem bundles, a portion of pericycle tissue, above the protoxylem forming a complete and continuous wavy ring, which later becomes circular.\xa0 | |
| 2478. |
What is apical root |
| Answer» Root apical meristem occupies the tip of a root while the shoot apical meristem occupies the distant most region of the stem axis. | |
| 2479. |
Name duct of bile juice |
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Answer» Bile duct which secret liver secret juice i.e bile juice Bile duct Bile duct Bile duct Bile duct or biliary duct |
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| 2480. |
Differentiate between root pressure and transpiration pull |
| Answer» Root pressure is caused by active transport of mineral nutrient ions into the root xylem. Without transpiration to carry the ions up the stem, they accumulate in the root xylem and lower the water potential. Water then diffuses from the soil into the root xylem due to osmosis. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells. Root pressure provides a force, which pushes water up the stem, but it is not enough to account for the movement of water to leaves at the top of the tallest trees.Transpirational pull is the main phenomenon driving the flow of water in the xylem tissues of large plants.Transpirational pull results ultimately from the evaporation of water from the surfaces of cells in the interior of the leaves. This evaporation causes the surface of the water to pull back into the pores of the cell wall. Inside the pores, the water forms a concave meniscus. The high surface tension of water pulls the concavity outwards, generating enough force to lift water as high as a hundred meters from ground level to a tree\'s highest branches. Transpirational pull only works because the vessels transporting the water are very small in diameter, otherwise cavitation would break the water column. | |
| 2481. |
Define Aasmids |
| Answer» A\xa0plasmid\xa0is a small, circular, double-stranded DNA molecule that is distinct from a cell\'s chromosomal DNA.\xa0Plasmids\xa0naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in\xa0plasmids\xa0provide bacteria with genetic advantages, such as antibiotic resistance.\xa0A\xa0plasmid\xa0is a small, often circular\xa0DNA\xa0molecule found in bacteria and other cells.\xa0Plasmids\xa0are separate from the bacterial chromosome and replicate independently of it. They generally carry only a small number of genes, notably some associated with antibiotic resistance. | |
| 2482. |
Doctor hark On you tube is posting Allen material.. |
| Answer» Is this true | |
| 2483. |
Brain stem consists of?? |
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Answer» Midbrain , medulla , and pons Brain stem consists of midbrain, pons and medulla |
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| 2484. |
What is the reason for inflammation by the release of histamine by mast cells |
| Answer» Histamine\xa0is not only\xa0released\xa0when the body encounters a toxic substance, it is also\xa0released\xa0when\xa0mast cells\xa0detect injury. It\xa0causes\xa0nearby blood vessels to dilate allowing more blood to reach the site of the injury or\xa0infection.\xa0The Fc region of immunoglobulin E (IgE) becomes bound to\xa0mast cells\xa0and basophils and when IgE\'s paratopes bind to an antigen, it\xa0causes\xa0the\xa0cells to release histamine\xa0and other inflammatory mediators. These similarities have led many to speculate that\xa0mast cells\xa0are basophils that have "homed in" on tissues.\xa0Histamine\xa0is involved in the\xa0inflammatory response\xa0and has a central\xa0role\xa0as a mediator of itching. ...\xa0Histamine\xa0increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues. | |
| 2485. |
In which phase of cell cycle can morphology of chromosomes be best studied?? |
| Answer» Metaphase is the best stage to count the total number of chromosomes in any species and to establish a detailed study of the morphology of the chromosomes. As mitotic cells are easy to obtain, morphological studies are generally based on mitotic metaphase chromosomes. | |
| 2486. |
What happens to the chromosomes in Telophase ???? |
| Answer» The sister chromatids which jad separated during anaphase,on reaching the opposite poles of the dividing cell,decondense to form back the thread like structures called chromosomes. | |
| 2487. |
Explain amphobolic pathway |
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Answer» Thanks ? \tAmphibolic pathway is the one which involves both anabolism and catabolism.\tKrebs cycle is a classic example of amphibolic pathway.\tKrebs cycle involves both the catabolism of carbohydrates and fatty acids and the anabolism of amino acids.\tFats should be broken into glycerol and fatty acid, and if fatty acids were to be respired they would first be degraded to acetyl CoA and enter the pathway after being converted to PGAL.\tGlycerol enter the pathway after it is converted to PGAL.\tThe proteins would be degraded by proteases and the individual amino acids depending on their structure would enter the pathway at some stage within the Krebs cycle.\tFatty acids would be broken down to acetyl CoA before entering the respiratory pathway when it is used as a substrate.\tBut when the organism needs to synthesize fatty acids, acetyl CoA would be withdrawn from the respiratory pathway for it.\tRespiratory pathway can be seen during both breakdown and synthesis of fatty acids. |
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| 2488. |
How much marks we have to get in neet for aiims |
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Answer» Yes 600+ 600+ |
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| 2489. |
How many govt. Medical colleges are there in india for mbbs?? |
| Answer» | |
| 2490. |
What is vexillary astevation means |
| Answer» Vexillary aestivation is the special arrangement where one large petal covers the other smaller petals. ... The two innermost, boat-shaped petals are called keels in this aestivation. The plants of Papilionaceae or legume family exhibit the ideal examples of vexillary aestivation. | |
| 2491. |
what is the cause of guttation ??? |
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Answer» lanthanodes Loss of water in the liquid state from uninjured parts of plants is known as guttation. It is due to root pressure.\xa0 |
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| 2492. |
Pellet meaning?? |
| Answer» pellet\' means a solid and visible mass of molecules or particles (such as proteins, nucleic acids or cells), which is typically obtained from a liquid medium in a conical tube by centrifugation. | |
| 2493. |
Who is the father of binomial nomenclature |
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Answer» Carolus Linnaeus Yes Carolus Linnaeus. Hello Yes Carolus Linnaeus |
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| 2494. |
About fungi kingdom |
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Answer» Fungi were once classified with plants, yet they offten in several important ways. In facts, some unicellular fungi (Yeasts) behave more like animals then plants. Fungi are ancient, evolving around one billion years ago (before animals and vascular plants). \tFungi are heterotrophic organisms.\tFungi are filamentous, with the exception of unicellular yeasts.\tFungi consist of long, slender thread-like structures called\tThe network of hyphae is known as mycelium.\tSome hyphae are continuous tubes filled with multinucleated cytoplasm, these are called coenocytic hyphae and others have septae or cross walls in their hyphae.\tThe cell walls of fungi are composed of chitin and polysaccharides.\tMost fungi are heterotrophic and absorb soluble organic matter from dead substrates and hence are called\tThe fungi that depend on living plants and animals are called\tFungi can also live as symbionts\t. Example- in association with algae as lichens and with roots of higher plants as |
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| 2495. |
Lower the taxa, more are the characteristics that the members within the taxon share |
| Answer» \xa0In the taxonomic hierarchy, lower the rank higher is the degree of similarity between the occupants.\xa0Order is the assemblage of families, which exhibit a few similar characters.\xa0Cat belongs to same family Felidae, while\xa0rabbit belongs to\xa0Leporidae.The binomial nomenclature\xa0was introduced by Carolus Linnaeus in which the genus name and the species epithet are used for scientific naming of an organism. | |
| 2496. |
Mera biology ka paper nahi hua kya lockdown ke hoga ya nahi |
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Answer» I hope so Zaroor hoga lekin lock down k bad No it will not happen May be maybe not ! Lockdown ke baad hoga... Nhi |
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| 2497. |
Explain generation and conduction of nerve impulses with labelled diagram |
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Answer» Hii saloni? The neurons are said to be in resting state when they are not conducting any impulse. In that case, the membrane of the axon is more permeable to potassium ions and impermeable to sodium ions and the negatively charged proteins present in axoplasm. The plasma in the axon contains a high concentration of potassium ions and proteins and low concentration of sodium ions. Whereas the fluid outside the axon contains a high concentration of sodium ions and low concentration of potassium ions. Due to this, a concentration gradient is formed. Active transport of ions occurs across the membrane by the sodium-potassium pump where three ions of sodium are transported outwards and two ions of potassium move into the cell. Because of this, the outer surface of the membrane becomes positively charged while the inner surface is negatively charged. The cell is said to be in a polarised state. The electrical potential difference across the resting plasma membrane is known as resting potential.When we apply a stimulus at a site on the polarised membrane, the membrane at the site becomes freely permeable to sodium ions. Due to this, sodium ions move into the cell and the outer side of the membrane becomes negatively charged and the inner side becomes positively charged. The membrane is said to be in the depolarised state. The electrical potential difference generated across the plasma membrane at this site is known as action potential or nerve impulse. This area becomes a stimulus for the neighboring area of the membrane which becomes depolarised. The former membrane becomes repolarised due to the movement of sodium ions outside the cell. This is how impulses are conducted. |
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| 2498. |
Draw and explain structure of contractile protein |
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Answer» Can you be my friend fir hw help you are too intelligent Skeletal muscle is composed of muscle fibers which have smaller units called myofibrils. There are three types of proteins make up each myofibril; they are contractile, regulatory and structural proteins.By contractile proteins, we mean actin (thin filament) and myosin (thick filament). Each actin filament is composed of two helical “F” actin (filamentous actin) and each ‘F’ actin is made up of multiple units of ‘G’ actin. Along with the ‘F’ actin, two filaments of regulatory proteins tropomyosin and troponin at regular intervals are present. During muscle relaxation, troponin covers the binding sites for myosin on actin filaments.Each myosin is composed of multiple units of meromyosin which has two important parts- a globular head known as heavy meromyosin with a short arm and a tail known as light meromyosin. The head and arms project at regular distance and angle from each other from the surface of myosin filament and are known as the cross arm. The head bears binding sites for ATP and active sites for actin. Let us now try to understand the muscle contraction mechanism.\xa0 |
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| 2499. |
Explain mechanism of muscle contraction |
| Answer» Mechanism of muscle contraction :\tMechanism of muscle contraction is explained by sliding filament theory which states that contraction of a muscle fibre takes place by the sliding of the thin filaments over the thick filaments.\tMuscle contraction is initiated by a signal sent by the central nervous system via a motor neuron.\tA motor neuron along with the muscle fibres connected to it constitutes a motor unit.\tThe junction between a motor neuron and the sarcolemma of the muscle fibre is called neuromuscularjunction or motor-end plate.\tNeurotransmitter releases here which generates an action potential in sarcolemma.\tThese causes release of Ca++ into sarcoplasm.\xa0\tThese Ca++ binds with troponin, thereby remove masking of active site.\tMyosin head binds to exposed active site on actin to form a cross bridge, utilizing energy from ATP hydrolysis.\tThis pulls the actin filament towards the centre of ‘A’ band.\t‘Z’ lines also pulled inward thereby causing a shortening of sarcomere i.e. contraction.\t‘I’ band get reduced, whereas the ‘A’ band retain the length.\tDuring relaxation, the cross bridge between the actin and myosin break.\tCa++pumped back to sarcoplasmic cisternae.\tActin filament slide out of ‘A’ band and length of ‘I’ band increases. This returns the muscle to its original state.\tRepeated muscle contraction causes accumulation of lactic acid, produced from anaerobic breakdown of glycogen leads to muscle fatigue.\tMuscle contains red coloured oxygen storing pigment called myoglobin.\tMuscle with myoglobin called red muscle fibres, they are also contain large number of mitochondria which can utilize large amount of oxygen stored in them for ATP production also called aerobic muscle.\tSome muscles possess very less quantity of myoglobin and less mitochondrion hence called white fibres. Amount of sarcoplasmic reticulum is high in these muscles. They depend on anaerobic process for energy. | |
| 2500. |
What is astevation of flower discribe its types |
| Answer» Aestivation is the mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl.There are four main types of aestivation. They are as follows:1. Valvate aestivation: Sepals or petals in a whorl just touch one another. They do not overlap one another.2. Twisted aestivation: One margin of the appendage overlaps the margin of the next appendage. Such type of aestivation is seen in lady’s finger, china rose and cotton.3. Imbricate aestivation: Margins of sepals or petals overlap one another but not in any particular direction. It is seen in Gulmohar and Cassia.4. Vexillary aestivation: It is also known as Papilionaceous type of aestivation.There are five petals. The largest petal (called standard) overlaps the two lateral petals (called wings) which further overlap the two smallest anterior petals (called keel). | |