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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.
| 2551. |
Write a short note on alteration of generation of bryophytes |
| Answer» Alternation of Generations:(a) The life cycle of moss represents two distinct generations : gametophytic and the sporophytic.(b) Moss plant is a gametophyte.© Spore is the beginning of the gametophytic generation.(d) It develops into protenema which gives rise to male and female gametophytes.(e) Gametophyte (haploid) consists of green thallus having archegoniophores and antheridiophores which bear *** organs and the gametes are produced in them either in monoecious or dioecious plants.(f) Club-shaped antheridium bears biflagellate sperms or antherozoids.(g) Flask shaped archegenium encloses the female egg.(h) Zygote is formed after the fertilization (syngamy) of male and female gametes with the help of water.(i) Repeated divisions of the zygote give rise to the embryo (2N) which soon develops into sporophyte.(j) The sporophyte of moss gets differentiated into three parts-foot, seta and capsule. Inside the capsule single celled spores are produced.(k) After the dehiscences, they begin to germinate and give rise to the protonema to start the cycle again.(l) Gametophytic generation alternates the sporophytic generation. | |
| 2552. |
Nuclear division in mitosis - ??? |
| Answer» Nuclear division is the division of the nucleus occuring in both mitosis and meiosis during cell division. In mitosis nuclear division only occurs once to produce two daughter cells genetically identical to each other. Nuclear division occures twice during meiosis as four haploid gametes are produced; each of which are genetically different from each other. In both processes the nuclear envelope is fragmented and completley broken down into small vesicles during prophase, to allow the chromosomes to segregate. The nuclear envelope then begins to reform during telophase within the daughter cells. This process involves vesicles of nuclear membrane fusing together around the chromosomes, to form the nuclear envelope and nuclear lamina. | |
| 2553. |
at which point two sister chromatin are held together - ?? |
| Answer» The condensed chromatin is folded and tightly coiled, like a coiled telephone cord, allowing the cell’s DNA to be packed into the nucleus.Before a cell can divide, it must first replicate its DNA so that each of the two daughter cells will receive a complete copy of the DNA. The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere. | |
| 2554. |
\u200c\u200cdoulbe circulation and it\'s significant |
| Answer» Blood flows twice through humam heart.it septates oxygenated and deoxygenated blood in human heart | |
| 2555. |
Feature of kranz anatomy. |
| Answer» \tKranz anatomy is the special arrangement of the cells found in the C4 plants\tThe bundle sheath cells form several layers around the vascular bundles.\tThe chloroplasts of bundle sheath cells are large and more in number, they have thick walls and no intercellular spaces.\tMesophyll cells are undifferentiated and arranged in concentric layers around the vascular bundles. | |
| 2556. |
From whic unit 5 marks question comes in exam |
| Answer» Biomolecules | |
| 2557. |
Notes of ch 16 |
| Answer» | |
| 2558. |
Assertion type question on microorganism lesson of std viii |
| Answer» | |
| 2559. |
Describe modifications of stem |
| Answer» For storage of food:-underground stem like potato,ginger,turmeric etc.For support:-like tendrils which develops from axillary buds ex. Gourds.For protection:-Axillary buds of stems may also get modified into woody,straight nd pointed thorns which protect plants from animals .ex.citrusFor photisynthesis:-plants of arid region modify their stems into flattened or fleeshy cylindrical structure which contain chlorophyll nd carry out photosynthesis ex.opuntia.Nd so many.... | |
| 2560. |
Mention the structure of a virus. |
| Answer» 1.They are non cellular. 2. They have inert crystalline structure.3. They are protein coated.4. They contain genetic material DNA or RNA. | |
| 2561. |
How does the increased level of calcium ion in the sarcoplasm help in muscle contraction? |
| Answer» the excess of calcium ion combine with troponin and remove the masking of myosin binding site on actin | |
| 2562. |
What is bryophyte |
| Answer» \tBryophytes include various mosses and liverworts, commonly grow in moist shaded areas in the hills.\tBryophytes are also called amphibians of the plant kingdom because these plants can live in soil but are dependent on water for sexual reproduction.\tPlant body is thallus-like and prostrate or erect, and attached to the substratum by unicellular or multicellular rhizoids.\tThey lack true roots, stem or leaves and may possess root-like, leaf-like or stem-like structures.\tThe main plant body of the bryophyte is haploid, produces gametes, and hence is called a gametophyte.\tThe male *** organ is called antheridium, which produce biflagellate antherozoids and the female *** organ called archegonium is flask-shaped, produces a single egg.\tThe antherozoids are released into water where they come in contact with archegonium and fuses with the egg to produce the zygote.\tZygotes produce a multicellular body called a sporophyte, which is not free-living but attached to the photosynthetic gametophyte and derives nourishment from it.\tSome cells of the sporophyte undergo reduction division to produce haploid spores, which germinate to produce gametophyte.\tThe bryophytes are divided into liverworts and mosses. | |
| 2563. |
Bryophyte |
| Answer» \tBryophytes include various mosses and liverworts, commonly grow in moist shaded areas in the hills.\tBryophytes are also called amphibians of the plant kingdom because these plants can live in soil but are dependent on water for sexual reproduction.\tPlant body is thallus-like and prostrate or erect, and attached to the substratum by unicellular or multicellular rhizoids.\tThey lack true roots, stem or leaves and may possess root-like, leaf-like or stem-like structures.\tThe main plant body of the bryophyte is haploid, produces gametes, and hence is called a gametophyte.\tThe male *** organ is called antheridium, which produce biflagellate antherozoids and the female *** organ called archegonium is flask-shaped, produces a single egg.\tThe antherozoids are released into water where they come in contact with archegonium and fuses with the egg to produce the zygote.\tZygotes produce a multicellular body called a sporophyte, which is not free-living but attached to the photosynthetic gametophyte and derives nourishment from it.\tSome cells of the sporophyte undergo reduction division to produce haploid spores, which germinate to produce gametophyte.\tThe bryophytes are divided into liverworts and mosses. | |
| 2564. |
Explain Kerbs cycle |
| Answer» The\xa0Krebs cycle\xa0(named after Hans\xa0Krebs) is a part of cellular respiration. Its other names are the citric acidity\xa0cycle, and the tricarboxylic acid\xa0cycle\xa0(TCA\xa0cycle). ... The\xa0Krebs cycle\xa0comes after the link reaction and provides the hydrogen and electrons needed for the electron transport chain. The\xa0main function of the Krebs cycle\xa0is to produce electron carriers that can be used in the last step of cellular respiration.\xa0The\xa0citric acid cycle, also known as the\xa0Krebs cycle\xa0or the tricarboxylic acid\xa0cycle, is at the center of cellular metabolism, playing a starring\xa0role\xa0in both the process of energy production and biosynthesis. It finishes the sugar-breaking job started in glycolysis and fuels the production of ATP in the process. | |
| 2565. |
Draw a well labelled diagram of funaris showing its gametophyte and a sacrophyte? |
| Answer» Funaria (gametophyte and saprophyte) | |
| 2566. |
Why photorespiration is a wasteful process? |
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Answer» because their is synthesis of co2 with utilozation of ATP Photorespiration is the wasteful process because, it prevent plant from using their ATP and NADPH to synthesize carbohydrates.rubisco the enzymes which fixer CO2 during for O2 fixation during photorespiration.\xa0 |
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| 2567. |
Physiology of urine formation |
| Answer» The kidneys filter unwanted substances from the blood and produce\xa0urine\xa0to excrete them. There are three main steps of\xa0urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body.\xa0Urine is one of the body\'s waste products. It is primarily composed of water and urea. Urea is a special nitrogenous waste compound that the body must routinely remove. Urine formation occurs in the kidney in three stages:\xa0filtration, reabsorption, and secretion.\xa0Formation\xa0of\xa0urine\xa0is a process\xa0important\xa0for the whole organism. Not only acid-base balance is modulated by it, but also blood osmolarity, plasma composition and fluid volume, and thus it influences all cells in our body. | |
| 2568. |
Explain transanimation |
| Answer» Transamination\xa0is the\xa0process\xa0by which amino groups are removed from amino acids and transferred to acceptor keto-acids to generate the amino acid version of the keto-acid and the keto-acid version of the original amino acid.\xa0Transamination, a chemical\xa0reaction\xa0that transfers an amino group to a ketoacid to form new amino acids. This pathway is responsible for the deamination of most amino acids.\xa0Transamination\xa0in biochemistry is accomplished by enzymes called transaminases or aminotransferases.\xa0Transamination takes place\xa0in the cytoplasm. | |
| 2569. |
what is metagenesis and in which animal kingdom it is found |
| Answer» The definition of metagenesis is the reproduction cycle of an organism that alternates between sexual and asexual generations. An example of metagenesis is the reproduction cycle of a cnidarian.Coelenterates exhibits metagenesis (e.g., Obelia) where polyp form alternates with medusa in its life cycle. | |
| 2570. |
A list of some animals that are found parasitic on human being |
| Answer» Name of organismPhylum1Taenia solium (Tape worm)Platyhelminthes2Fasciola hepatica(Blood worm)Platyhelminthes3Ascaris lumbricoides(Round worm)Aschelminthes4Wuchereria bancrofti (Filarial worm)Aschelminthes5Ancyclostoma (Hook worm)Aschelminthes | |
| 2571. |
What is collar cell |
| Answer» Choanocytes (also known as "collar cells") are\xa0cells\xa0that line the interior of asconoid, syconoid and leuconoid body type sponges that contain a central flagellum, or undulipodia, surrounded by a\xa0collar\xa0of microvilli which are connected by a thin membrane. | |
| 2572. |
A hormone responsible for normal sleep wake cycle is |
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Answer» Melatonin is the right Melatonin Pineal |
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| 2573. |
What is pacentation |
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Answer» The correct arrangement of ovule in the ovary is known as placentation . It is of five types. The arrangements of ovule into ovary in flowers. It\'s placentation. |
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| 2574. |
Tips to learn bio scientists name. |
| Answer» Relate them and arrange them to the year | |
| 2575. |
What is the effect of 1 abscisic acid and 2 red light region.on a germination of seed |
| Answer» Abscisic acid (ABA) is a plant hormone that regulates seed dormancy and germination. Seeds undergo changes in both ABA content and sensitivity during seed development and germination in response to internal and external cues. Germination is regulated by a pigment, phytochrome, which is sensitive to different wavelenghts of light. When far red light is receive the phytochrome equilibrium changes towards the red light absorbing form. | |
| 2576. |
According to ncert Virus is acellular i.e (non-cellular)..then where the RNA-DNA is present |
| Answer» A virus is an infectious particle that reproduces by "commandeering" a host cell and using its machinery to make more viruses. A virus is made up of a DNA or RNA genome inside a protein shell called a capsid. Viruses reproduce by infecting their host cells and reprogramming them to become virus-making "factories." | |
| 2577. |
What is thecodont |
| Answer» Thecodont is a type of dentition in which the teeth are embedded in the deep sockets of the jaw bone. | |
| 2578. |
Mechanism of cardiac muscle |
| Answer» Mainly contraction and relaxation. | |
| 2579. |
Differentiate between the two heart sounds lab and dab |
| Answer» First of all the sounds are not lab and dab but are lub and dub.The first heart sound,lub, is associated with the closure of the tricuspid and bicuspid valves whereas the second heart sound,dub, is associated with the closure of semilunar valves. | |
| 2580. |
Brain is |
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Answer» CPU of our body. The control center of all our bodily functions that maybe voluntary or involuntary |
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| 2581. |
What is furkinge fibre |
| Answer» That\'s purkinje fibers ok. | |
| 2582. |
Define locomotion and movement. |
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Answer» Movement:- Movement is one of the most important feature of living organism animals and plants exhabit a wid range of movement. Locomotion :- The movement of result in a change of place and location. Such voluntary movement are called locomotion . Example:- walking, running etc. |
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| 2583. |
Define rh group of blood? |
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Answer» Rh blood group are of three types 1. A 2. AB 3. O A AB O |
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| 2584. |
Growth and reproduction are not the defining property of living being why explain |
| Answer» Growth and reproduction cannot be taken as the defining property of all living beings because they are certain living beings in the world which do not show these properties and yet they are living beings. For eg: Drones, Infertile couples cannot reproduce yet they are living. Growth is defined as inversible increase in the number of cells or mass of living structure. If we consider increase in body mass at growth, non living objects like sand mounts grow too. Hence growth cannot be taken as a defining property if living organisms. Though it is a characteristics of living organisms . | |
| 2585. |
Define chrysophytes? |
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Answer» Thanks, the year is over and now I\'m in class 12th. Thanks you so much for helping a unaware person?. Organism like diatoms and desmids are called Chrysophytes.They are found in both marine and freshwater form and constitute the major phytoplanktons. Therefore, they are the chief producers in the ocean. |
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| 2586. |
Define hypogynous, perigynous and epigynous flowers? |
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Answer» Wah ? It is a process..... |
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| 2587. |
Name the phase of growth |
| Answer» Adolesence | |
| 2588. |
Describe carbohydrate digestion in human body |
| Answer» The digestion of carbohydrates begins in the mouth. The human saliva contains an enzyme called salivary amylase which digests the starch present in the food into maltose sugar. The slightly digested carbohydrates when reaches the small intestine, pancreatic amylase present in the pancreatic juice breaks down the starch. The intestinal juice of the small intestine completes the digestion of carbohydrates and finally coverts it into glucose. | |
| 2589. |
Afferent and efferent fibres define. |
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Answer» It\'s a taxonomic group covering more than one species. Define genus |
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| 2590. |
Mention the importance of trichomes and root hair for a plant |
| Answer» Trichomes are hairs which are often found as epidermal outgrowths. The hairs of aerial parts may be unicellular or multicellular, branched or unbranched.Function : (a) They enclose stationary air and protect the plant organ against water loss and sudden fluctuation in atmospheric temperature.(b) In some plants, the hairs are glandular which secrete essential oil and provide characteristic odours to the plant, e.g., Citrus, Ocimum etc. | |
| 2591. |
Ma component of the form element in the blood and mention one major function of each of them |
| Answer» The main components of blood are:(i) Plasma: It carries all the dissolved substances such as proteins, digested food, common salt etc from one part to another part of the body.(ii) Red blood corpuscles (RBC): It carries oxygen from the lungs to all the cells of the body.(iii) White blood corpuscles (WBC): It fights infection and protects us from diseases.(iv) Platelets: It helps in the coagulation of blood in a cut or wound.Functions of blood:(i) It carries oxygen from the lungs to different parts of the body.(ii) It carries carbon dioxide from the body cells to the lungs for breathing out.(iii) It carries digested food from the small intestine to all the parts of the body.(iv) It carries waste product called urea from the liver to the kidneys for excretion in the form of urine.(v) It protects the body from diseases. | |
| 2592. |
Can anyone explain me the Amphibolic pathway in short?? |
| Answer» An amphibolic pathway is a biochemical pathway that includes both anabolic and catabolic processes. For example respiration is an amphibolic pathway.When energy is required, proteins or fatty acids are broken down to form acetyl-CoA and further processes of respiration occur. This is catabolism. When the body requires fatty acids or proteins, respiratory pathway stops and the same acetyl-CoA is utilized and fatty acids are manufactured via respiration. This process of synthesis is termed as anabolism. | |
| 2593. |
What is modification of root |
| Answer» In some plants roots gets modified as they change their shape, size to absorb or to transport the minerals, nutrients and water from one place to another and they are also modified for the suuport , food storage, respiration As in this way roots modifications take place | |
| 2594. |
Define all the stages of M phase? |
| Answer» Phases of MitosisThe M phase involves Mitosis which is the process of cell division. It is composed of:ProphaseNucleolus disintegratesNuclear membrane breakdownSpindle fibres appearPrometaphaseSpindle fibres attach to chromosomesChromosomes condenseMetaphaseChromosomes align at the metaphase plateAnaphaseCentromeres divideSister chromatids move to opposite polesTelophaseNuclear membrane reformsChromosomes decondenseSpindle fibres disappearCytokinesis is the process of the parent cell becoming 2 daughter cells. These daughter cells contain identical genetic information. Cytokinesis also involves a division of the cytoplasm. It is considered a separate step to mitosis. | |
| 2595. |
How the fish take the breath in water |
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Answer» From their gills By gills Through gills |
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| 2596. |
Which part of the neuron is considered as afferent process? |
| Answer» Afferent neurons are pseudounipolar neurons that have a single axon leaving the cell body dividing into two branches: the long one towards the sensory organ, and the short one toward the central nervous system (e.g. spinal cord). These cells do not have dendrites that are typically inherent in neurons. | |
| 2597. |
What is the term used for the stimulus of adequate strength? |
| Answer» The adequate stimulus is a property of a sensory receptor that determines the type of energy to which a sensory receptor responds with the initiation of sensory transduction.\xa0The adequate stimulus is the amount and type of energy required to stimulate a specific sensory organ. | |
| 2598. |
What is congestive heart failure |
| Answer» Congestive heart failure (CHF) is a condition in which the heart\'s function as a pump is inadequate to meet the body\'s needs.Many disease processes can impair the pumping efficiency of the heart to cause congestive heart failure.The symptoms of congestive heart failure vary, but can include:\tFatigue\tDiminished exercise capacity\tShortness of breath\tSwelling (edema)The diagnosis of congestive heart failure is based on knowledge of the individual\'s medical history, a careful physical examination, and selected laboratory tests.The treatment of congestive heart failure can include lifestyle modifications, addressing potentially reversible factors, medications, heart transplant, and mechanical therapies. | |
| 2599. |
How many bones are there in human hand |
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Answer» Good .... I\'m proud of u all, u have made it a chatting application. Yrrr tere nve dramay rve h roz thodi der thodi der krke Abhi daale h Konse pe....uper tera toh koe ques h ae na Fb pe thodi der me baat krti hu Upar aaja aaj ke q pr Onln aa jldi.. ?????? Oye kit tha kl Hii hlo 30 bones Fb pe req jarur bhej diye....mne id na pai. Teri Chl koi na..kl baat krte h...??....??........?????? Vansh yrr plzz aaja... Jaan plzz aaja..30 min hi baat kr paungi aaj Vansh aaj aaj yhi baat krte h..fb oe toh ph no dalna pdega...frnd ka no leungi...sms ke liye.. Ke scene h yo.. Hlooo Hii 206 in Adults and 305 in infants . Req bhej..mne teri id pai koni... Hrt shape ka.. Oye sun...fb pe aaral vats naam se id h...profike pic me ek ldka ldki bench pe baithe h...hath me ballon liye Mai 15 min me baat krungi.. |
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| 2600. |
Simple and conjugated protein?? |
| Answer» A conjugated protein is a protein that ---------------------------functions in interaction with other (non-polypeptide) chemical groups attached by covalent bonding or weak interactions. Many proteins contain only amino acids and no other chemical groups, and they are called simple proteins. ----------------------- | |