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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.
| 6301. |
Explain sexual reproduction of bacteria???? |
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| 6302. |
What is substrate |
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Answer» Substrates are nothing none other than reactants. Or we can they substrates are the molecules that acted on an enzyme. A substance to which another substance is applied we call it as a\xa0substrate. Its definition is different in different sciences. According to biology, it is a medium on which flora, fauna or fungi lives. What is substrate |
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| 6303. |
Name the three fields of systematic |
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Answer» Three field of systematic are: taxonomy, classification, phylogeny Systematics is the study of diversity and interrelationships between organisms, both extinct and extant. It also deals with classification of living beings. Fields of systematics differ according to various authors. Some authors classify three fields of systemics : Taxonomy, Classification and Phylogeny. According to other authors, these are Numerical Systematics, Biochemical Systematics and Experimental Systematics. |
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| 6304. |
Structure of lungd |
| Answer» Lungs are the chief centres of the respiration in humans and other vertebrates. They are located in the thoracic cavity of the chest near the backbone and on either side of the heart. They are the pair of large, spongy organs, mainly involved in the exchange of gases between the blood and the air. Compared to the left lung, the right lung is quite bigger and heavier. | |
| 6305. |
Why enzymes are called biocatalyst. |
| Answer» Enzymes are called biocatalyst because they speed up the rate of biological reaction | |
| 6306. |
Who is the father of botany |
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Answer» Theophrastus \tTheophrastus is known as the father of Botany.\tAristotle is known as the father of biology and zoology. |
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| 6307. |
What are sporophylls in gymnosperms |
| Answer» \tThe gymnosperms are heterosporous, haploid microspores and megaspores are produced within sporangia on sporophylls which are arranged spirally along an axis to form compact strobili or cones.\tThe strobili bearing microsporophylls and microsporangia are called\xa0microsporangiate or male strobili.\tThe microspores develop into a male gametophyte which is highly reduced called as a pollen grain. | |
| 6308. |
What is the meaning of site in the question site of mitochindria? |
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Answer» Position or Location Position, place, location.... etc |
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| 6309. |
Differentiate between phycobiont and mycobiont |
| Answer» Phycobiont is the algal component of lichen whereas mycobiont is the fungal component of the lichen , both phycobiont and mycobiont together constitute lichen | |
| 6310. |
during sleep there is a need of energy for |
| Answer» Energy use is particularly high during rapid eye movement sleep. During this time your brain is highly active and you use the most glucose and your heart and blood pressure also rise during this time . So during sleep there is need of energy. | |
| 6311. |
What is the difference between coelomate and non-coelomate. |
| Answer» Animals with true coelom(the cavity found between the body wall and alimentary canal) are called coelomate.Absence of body cavity or coelom is called non coelomate or acoelomate. | |
| 6312. |
What is the difference between alveolar air and inspired air |
| Answer» alveolar air- the amount of air present in the alvioli after insperationinspired air- the total amont of air inspired during inspiration | |
| 6313. |
Spiny bodied animal belongs to |
| Answer» The marine animals termed echinoderms belonging to\xa0Phylum\xa0Echinodermata of\xa0Kingdom Animalia\xa0have\xa0spiny bodies.\xa0Characteristics of Echinodermata:(i) Simple animals may be a star like, spherical or elongate.(ii) Body triploblastic, coelomate, unsegmented and radially symmetrical. (iii) Body lacks head but has oral and aboral surfaces. Oral surface of the body has five radial areas called ambulacra.(iv) Body wall is covered with spiny hard calcareous (calcium carbonate) plates (ossicles) that forms a rigid or flexible endoskeleton.Example: Echinus (sea urchin) and Asterias (star fish). | |
| 6314. |
Four long and 2 short stamens are found in which family |
| Answer» Brassicaceae or mustard family is an economically important family of flowering plants. In Brassicaceae, the stamens are 6 which are arranged in two whorls. The outer two stamens are short and inner four stamens are long, tetradynamous (4 inner stamens are longer than 2 outer stamens), polyandrous (all the stamens are free), anthers dithecous, basifixed, introrse.So, the correct answer is \'Brassicaceae\'. | |
| 6315. |
What are phycocolloids name two of them and their respective sources |
| Answer» Phycocolloids are nothing but the covering on the body of the algae and other microbes which prevents them from drying or freezing in the extreme environment in water, it is basically a protective layer.There are mainly three types of the same. For example, alginic (algin) acid, fucoidin and fucin. | |
| 6316. |
Significance of semilunar valves and it\'s location? |
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Answer» It\'s present in between left ventricle & aorta&Right ventricle & pulmonary artery Semilunar valves are present to prevent the backflow of blood from aorta & pulmonary artery to their respective left & right ventricle |
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| 6317. |
Hii I m new on this app..Will I get help from this app to solve my study problems...?.. |
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Answer» Yes ?? yup Yes ?? Yes of course |
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| 6318. |
What is symmetry |
| Answer» It is division of a body into two or more equal parts | |
| 6319. |
Describe tha conducting system of human heart |
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Answer» A cardiac conduction system is a group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of the cardiac conduction system are the SA node, AV node, the bundle of His, bundle branches, and Purkinje fibers.The sequence of electrical events during one full contraction of the heart muscle:\tAn excitation signal (an action potential) is created by the sinoatrial (SA) node.\tThe wave of excitation spreads across the atria, causing them to contract.\tUpon reaching the atrioventricular (AV) node, the signal is delayed.\tIt is then conducted into the bundle of His, down the interventricular septum.\tThe bundle of His and the Purkinje fibers spread the wave impulses along the ventricles, causing them to contract.\xa0Components of the Cardiac Conduction System:\tSinoatrial Node:\xa0The sinoatrial (SA) node is a collection of specialized cells (pacemaker cells), and is located in the upper wall of the right atrium, at the junction where the superior vena cava enters. These pacemaker cells can spontaneously generate electrical impulses. The wave of excitation created by the SA node spreads via gap junctions across both atria, resulting in atrial contraction (atrial systole) – with blood moving from the atria into the ventricles.\tAtrioventricular Node (AV Node)\xa0- The AV Node receives the signal from the SA Node with the help of Bachmann\'s Bundle. It takes a 0.1s delay for the signal to transmit from the AV node to the Bundle of His.\tAtrioventricular Bundle: The atrioventricular bundle (bundle of His) is a continuation of the specialized tissue of the AV node, and serves to transmit the electrical impulse from the AV node to the Purkinje fibers of the ventricles. It descends down the membranous part of the interventricular septum, before dividing into two main bundles: Right bundle branch – conducts the impulse to the Purkinje fibres of the right ventricle. Left bundle branch – conducts the impulse to the Purkinje fibers of the left ventricle.\tThe Purkinje fibers\xa0(sub-endocardial plexus of conduction cells) are a network of specialized cells. They are abundant with glycogen and have extensive gap junctions. These cells are located in the subendocardial surface of the ventricular walls and are able to rapidly transmit cardiac action potentials from the atrioventricular bundle to the myocardium of the ventricles. This rapid conduction allows coordinated ventricular contraction (ventricular systole) and blood is moved from the right and left ventricles to the pulmonary artery and aorta respectively. |
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| 6320. |
Group of seedless vascular plants |
| Answer» The seedless vascular plants include club mosses, which are the most primitive; whisk ferns, which lost leaves and roots by reductive evolution; and horsetails and ferns. Ferns are the most advanced group of seedless vascular plants. They are distinguished by large leaves called fronds and small sporangia-containing structures called sori, which are found on the underside of the fronds. | |
| 6321. |
Point wise explanation on Bryophytes? |
| Answer» Bryophytes are an informal group consisting of three divisions of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses. They are characteristically limited in size and prefer moist habitats although they can survive in drier environments. The bryophytes consist of about 20,000 plant species. The aim is to give you a good understanding of bryophyte structure and of the similarities and differences between the three groups. | |
| 6322. |
Mitocondria |
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Answer» Mitochondria is a powerhouse of cell Powerhouse of the cell Mitocondria stores energy in the form of ATP which is used by our body to get energy to perform certain tasks |
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| 6323. |
Write Universal binomial nomenclature ? |
| Answer» Binomial Nomenclature “Binomial nomenclature is the biological system of naming the organisms in which the name is composed of two terms, where, the first term indicates the genus and the second term indicates the species of the organism.” | |
| 6324. |
Under suitable condition, slime moulds form what? |
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Answer» It forms plasmodium and plasmodium grow faster and with some fruiting body which contain spores Under suitable condition, slime moulds form plasmodium. |
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| 6325. |
Describe the floral characteristics of family solanaceae and liliaceae. |
| Answer» Characteristics of Solanaceae FamilyThe following are the characteristic features of the Solanaceae family:Vegetative Characters\tRoot System:\xa0Taproot system.\tStem:\xa0Erect or climber; Solanaceae includes herbs, shrubs, small trees, and climbers.\tLeaves: Alternate, simple or pinnately compound (rarely); exstipulate; reticulate venation.Floral characters\tInflorescence:\xa0Racemose- terminal or axillary raceme; Cymose- solitary in Solanum.\tFlower:\xa0Complete, bisexual, actinomorphic, hypogynous.\tCalyx:\xa0Five sepals, gamosepalous; valvate aestivation.\tCorolla:\xa0Five petals, gamopetalous, valvate aestivation.\tAndroecium:\xa0Five stamens, epipetalous; anthers basifixed.\tGynoecium:\xa0Syncarpous, bicarpellary, bilocular, superior ovary, axile placentation.\tFruit:\xa0Berry/ capsule.\tSeed:\xa0Numerous, endospermousCharacteristics of Liliaceae FamilyThe following are the important characteristics of the Liliaceae family.Vegetative Characters\tRoot:\xa0Fibrous root system.\tStem:\xa0Erect; Liliaceae includes perennial herbs which propagate through bulbs or rhizomes.\tLeaves: Alternate, simple; exstipulate; parallel venation.Floral characters\tInflorescence:\xa0Cymose- solitary; umbellate clusters.\tFlower:\xa0Complete, bisexual, actinomorphic; hypogynous, perianth present.\tPerianth:\xa0Indistinctive sepal and petal; six tepals (3+3), often united tepals; valvate aestivation.\tAndroecium:\xa0Six stamens in two whorls (3+3).\tGynoecium:\xa0Syncarpous, tricarpellary, trilocular, superior ovary with axile placentation.\tFruit:\xa0Mostly Capsule and sometimes berry.\tSeed:\xa0Endospermic seeds. | |
| 6326. |
What are vertibrates and invertibrates? |
| Answer» \tInvertebratesVertebratesInvertebrates do not possess a backbone not an internal skeletonVertebrates possess a backbone and an internal skeleton.Invertebrates have\xa0an exoskeletonVertebrates do not possess an exoskeleton.Body size varies but most are generally smaller than vertebrates. However, some invertebrates grow to gigantic proportions – such as the colossal squid (46 feet in length)Generally, vertebrates are comparatively larger than invertebratesNearly all invertebrates possess an open circulatory system.All vertebrates have closed circulatory system.\t | |
| 6327. |
Explain the structure and function of stomatal apparatus |
| Answer» Stomata are small pores present in the epidermis of leaves. They regulate the process of transpiration and gaseous exchange. The stomatal pore is enclosed between two bean-shaped guard cells. The inner walls of guard cells are thick, while the outer walls are thin. The guard cells are surrounded by subsidiary cells. These are the specialised epidermal cells present around the guard cells. The pores, the guard cells, and the subsidiary cells together constitute the stomatal apparatus. | |
| 6328. |
Explain the term Radial conjoint vascular bundles |
| Answer» The xylem and phloem within a vascular bundles are arranged in\xa0an alternate manner on different radii is called radial vascular bundle. The xylem and phloem are situated at the same radius of the vascular bundles is called conjoint.\xa0 | |
| 6329. |
Explain the term Endarchxylem |
| Answer» \tExarch: It is a type of primary xylem in which the protoxylem lies towards the periphery while the metaxylem lies towards the pith.\tEndarch: It is a type of primary xylem in which the protoxylem lies towards the pith (centre) and the metaxylem lies towards the periphery of the organ. | |
| 6330. |
What are the difference between couplet and lead?? |
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Answer» Thank you mam Key is a taxonomical aid used for identification of plants and animals based on the similarities and dissimilarities. The keys are based on contrasting characters generally in a pair called couplet. It represents the choice made between two opposite options, which results in acceptance of only one and rejection of the other. Each statement in the key is called a lead. Separate taxonomic keys are required for each taxonomic category such as family, genus and species for identification purposes. Keys are generally analytical in nature. |
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| 6331. |
Mitochondria and chloroplast are not part of the endomembrane system. Discuss |
| Answer» A n s w e r :The functions of the mitochondria, chloroplasts and peroxisomes are not coordinated with the endoplasmic reticulum, Golgi complex, lysosomes and vacuoles. Hence, they are not part of the endomembrane system. | |
| 6332. |
What is the importance of centriole during cell division? |
| Answer» Every animal-like cell has two small organelles called centrioles. They are there to help the cell when it comes time to divide. They are put to work in both the process of mitosis and the process of meiosis.Hope it hlps u !!!! ?? | |
| 6333. |
Which is the longest cell in the human body? RBC, neuron, WBC, cell in the mucles of thigh. |
| Answer» The length of the muscle cell is 1-40 micrometers.Nerve cells possess a cell body and one to many thin, fiber-like axons.Some nerve cells possess axons as long as 1 meter. | |
| 6334. |
What is Go(quiescent) phase of cell cycle? |
| Answer» G0 (quiescent phase) also known as the inactive stage of the cell cycle, is the stage when the cell remains metabolically active, but do not proliferate unless called on to do so. Such cells are used for replacing the cells lost during injury. | |
| 6335. |
What is kinetochore? Give it\'s significance. |
| Answer» Kinetochore is a structure on chromatids\xa0at which the spindle fibres\xa0attach during cell division to pull the sister chromatids apart. Their proteins help to hold the sister chromatids together and also play a role in chromosome editing.Kinetochore is observed in eukaryotes as an\xa0assembly on the centromere\xa0and links the chromosome\xa0to microtubule\xa0polymers from the mitotic spindle\xa0during mitosis\xa0and meiosis. | |
| 6336. |
Difference between apocarpous and syncarpous ovary |
| Answer» \tApocarpous ovarysyncarpous ovaryIn a flower, when more than one free carpels are present, the ovary is called apocarpous ovaryIn a flower, when more than one carpels are found and they are fused, the ovary is called syncarpous ovary.Examples of the apocarpous ovary include lotus and roseExamples of the syncarpous ovary include mustard and tomato\t | |
| 6337. |
Define placentation |
| Answer» \tThe arrangement of ovules within the ovary is known as placentation.\tThe placentation is of different types namely, marginal, axile, parietal, basal, central and free central.\tIn marginal placentation the placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on this ridge forming two rows. Example- pea | |
| 6338. |
What is meant by 300mOsmolL-¹ |
| Answer» Osmolarity\xa0defines the solute concentration, i.e.\xa0number of moles of solute that contributes to the osmotic pressure of a solution.Osmolarity\xa0can be expressed in milli\xa0osmol\xa0per litre or mOsmol L-1\xa0 | |
| 6339. |
Write notes on 1) metaphase plate 2) control of mitosis |
| Answer» Metaphase is a stage of the cell cycle occurring in both mitosis and meiosis cell division processes. During metaphase in mitosis and meiosis, the chromosomes condense and they become visible and distinguishable during alignment at the center of the dividing cell, to form a metaphase plate at the center of the cell.\xa0In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber. In\xa0anaphase, sister chromatids (now called chromosomes) are pulled toward opposite poles. In\xa0telophase, chromosomes arrive at opposite poles, and nuclear envelope material surrounds each set of chromosomes. | |
| 6340. |
Describe the prophase of metosis. |
| Answer» Prophase immediately follows S and G2 phase of the cycle and is marked by condensation of the genetic material to form compact mitotic chromosomes composed of two chromatids attached at the centromere.The completion of prophase is characterised by the initiation of the assembly of the mitotic spindle, the microtubules, and the proteinaceous components of cytoplasm that help in the process.The nuclear envelope starts disintegrating. | |
| 6341. |
List 10 scientific and common name of bacteria |
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| 6342. |
What do you mean by biomolecules? |
| Answer» \tChemicals or molecules present in the living organism are known as biomolecules. Biomolecules are divided into two types- inorganic and organic.\tInorganic biomolecules includes minerals, gases and water and organic biomolecules includes carbohydrates, fats, proteins, nucleic acids, vitamins, etc. | |
| 6343. |
What are insectivorous plants ? Give an example. |
| Answer» Insectivorous means insect-eating, these plants derive most of their nutrition from the insects, that they trap and consume. These plants grow in humid areas, where plenty of sunlight and moisture is found. They are found in the nitrogen deficient soil. That is why they trap and digest insects to absorb nutrients. Venus flytrap, pitcher plant and cobra lily are some of the insectivorous plants’ names.\xa0They are often called Carnivorous plants. | |
| 6344. |
HELLO IWONT ALL SUB 11TH |
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Answer» Hello ❤???? ???? ? |
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| 6345. |
Why is living organisms classified? |
| Answer» Living organisms are classified because for the following reasons:-1) It is not possible to study about each existing living organism in detail.2) Classification helps us to understand the evolution of all life forms.3) Classification organisms into groups make it easier to know about different life forms which are existing in this earth. | |
| 6346. |
Explain the three types of neuron . Name the site where they are present |
| Answer» Neurons are the cells that make up the brain and the nervous system. They are the fundamental units that send and receive signals which allow us to move our muscles, feel the external world, think, form memories and much more.Sensory neuronsSensory neurons are the nerve cells that are activated by sensory input from the environment - for example, when you touch a hot surface with your fingertips, the sensory neurons will be the ones firing and sending off signals to the rest of the nervous system about the information they have received.The inputs that activate sensory neurons can be physical or chemical, corresponding to all five of our senses. Thus, a physical input can be things like sound, touch, heat, or light. A chemical input comes from taste or smell, which neurons then send to the brain.Most sensory neurons are pseudounipolar, which means they only have one\xa0axon\xa0which is split into two branches.Motor neuronsMotor neurons of the spinal cord are part of the\xa0central nervous system\xa0(CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the\xa0spinal cord\xa0to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements. There are in fact two types of motor neurons: those that travel from spinal cord to muscle are called\xa0lower\xa0motor neurons, whereas those that travel between the brain and spinal cord are called\xa0upper\xa0motor neurons.Motor neurons have the most common type of ‘body plan’ for a nerve cell - they are multipolar, each with one axon and several dendrites.InterneuronsAs the name suggests, interneurons are the ones in between - they connect spinal motor and sensory neurons. As well as transferring signals between sensory and motor neurons, interneurons can also communicate with each other, forming circuits of various complexity. They are multipolar, just like motor neurons. | |
| 6347. |
What is mean by heterotrophic |
| Answer» Heterotroph\xa0is an organism that is unable to synthesize its own food, and therefore, has to rely on other sources, specifically plant and animal matterThe word Heterotrophic is the combination of two words i.e. Hetero + Trophos. Hetero means ‘others’ and ‘trophos’ means nourishment. If organisms depend on others for their food, such a mode of nutrition is called Hetetrophic Nutrition.Animals cannot make their food themselves. They depend for food upon plants. Therefore, nutrition in animals is called Hetetrophic Nutrition. Animals are known as Heterotrophs. | |
| 6348. |
Girls can give me their no. To practice about reproduction |
| Answer» ??? | |
| 6349. |
What are human eye |
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Answer» Parts of eye\tThe adult human eye ball is nearly a spherical structure.\tThe wall of the eye ball is composed of three layers\texternal layer is composed of a dense connective tissue and is called the\xa0sclera\tanterior portion of this layer is called the\xa0cornea\tmiddle layer is\xa0choroid, which contains many blood vessels and looks bluish in colour.\tThe choroid layer is thin over the posterior two-thirds of the eye ball, but it becomes thick in the anterior part to form the ciliary body.\tThe ciliary body itself continues forward to form a pigmented and opaque structure called the\xa0iris\xa0which is the visible coloured portion of the eye.\tThe eye ball contains a transparent crystalline lens which is held in place by ligaments attached to the ciliary body.\tIn front of the lens, the aperture surrounded by the iris is called the\xa0pupil.\tThe diameter of the pupil is regulated by the muscle fibres of iris.\tThe inner layer is the retina and it contains three layers of cells, from inside to outside ganglion cells,\xa0bipolar cells photoreceptor cells.\tThere are two types of photoreceptor cells rods\tPhotoreceptor cells contain the light-sensitive proteins called the\xa0photopigments.\tThe daylight vision and colour vision are functions of cones and the twilight vision is the function of the rods.\tThe rods contain a purplish-red protein called the\xa0rhodopsin\xa0or visual purple, which contains a derivative of Vitamin A.\tIn the human eye, there are three types of cones which possess their own characteristic photopigments that respond to red, green and blue lights.\tThe optic nerves leave the eye and the retinal blood vessels enter it at a point medial to and slightly above the posterior pole of the eye ball.\tPhotoreceptor cells are not present the medial region and hence it is called the\xa0blind spot.\tAt the posterior pole of the eye lateral to the blind spot, there is a yellowish pigmented spot called\xa0macula lutea\xa0with a central pit called the\xa0fovea, is a thinned-out portion of the retina where only the cones are densely packed.\tThe space between the cornea and the lens is called the\xa0aqueous chamber\xa0and contains a thin watery fluid called\xa0aqueous humor.\tThe space between the lens and the retina is called the\xa0vitreous chamber\xa0and is filled with a transparent gel called\xa0vitreous humor. The human eye is an organ that reacts with light and allows light perception, color vision and depth perception |
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| 6350. |
Antibiotic fungi...?? |
| Answer» | |