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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.
| 2051. |
Describe the features of complex tissues along with it\'s type |
| Answer» \xa0Complex permanent tissues – Complex tissues are made of more than one type of cells. All these cells coordinate to perform a common function. Xylem and phloem are examples of such complex tissues. They are both conducting tissues and constitute a vascular bundle.\tXylem – Xylem is a vascular and mechanical tissue. It consists of tracheids, vessels, xylem parenchyma and xylem fibres. Except xylem parenchyma, all xylem elements are dead and bounded by thick lignified walls. Tracheids and vessels are tubular structures which transports water and minerals vertically. The parenchyma stores food and helps in the sideways conduction of water. Fibres are mainly supportive in function.ii. Phloem – Phloem contains tubes but performs no mechanical function. Phloem is made up of four types of elements: sieve tubes, companion cells, phloem fibres and the phloem parenchyma. Sieve tubes are tubular cells with perforated walls. Phloem is unlike xylem in that materials can move in both directions in it. Phloem transports food from leaves to other parts of the plant. Except for phloem fibres, phloem cells are living cells. | |
| 2052. |
What is placentation? describe it\'s types. |
| 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\tWhen the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentaion is said to be axile. Example- china rose.\tIn parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part and ovary become twochambered due to the formation of the false septum. Example- mustard\tIn free central, the ovules are borne on central axis and septa are absent. Example- Dianthus\tIn basal placentation, the placenta develops at the base of ovary and a single ovule is attached to it. Example – sunflower. | |
| 2053. |
Write a detailed note on technical description of flower |
| Answer» \tThe plant is described beginning with its habit, vegetative characters such as roots, stem and leaves and then floral characters inflorescence and flower parts.\tAfter describing various parts of plant, a floral diagram and a floral formula are presented, which is represented by some symbols.\tIn the floral formula, Br stands for bracteate K stands for calyx , C for corolla, P for perianth, A for androecium and G for Gynoecium, G for superior ovary and\xa0G\xa0for inferior ovary, for male, for female , ⊕ for actinomorphic and for zygomorphic nature of flower.\tFusion is indicated by enclosing the figure within bracket and adhesion by a line drawn above the symbols of the floral parts.\tA floral diagram provides information about the number of parts of a flower, their arrangement and the relation they have with one another.\tThe position of the mother axis with respect to the flower is represented by a dot on the top of the floral diagram.\tCalyx, corolla, androecium and gynoecium are drawn in successive whorls, calyx being the outermost and the gynoecium being in the centre.\tFloral formula also shows cohesion and adhesion within parts of whorls and in between whorls. | |
| 2054. |
Write a note on taxonomical aids |
| Answer» Taxonomical aids are the collections of samples or preserved organisms which help in extensive research for the identification of various taxonomic hierarchy. Classifying organisms into various categories needs a lot of field and laboratory study. This is an essential process, because taxonomic categorization helps in identifying many organisms necessary in various fields like agriculture, industries, bio resources, etc. | |
| 2055. |
Give main part of stomach |
| Answer» The stomach has four parts :(1) Cardiac stomach : It is proximal part. The opening of oesophagus into cardiac stomach is guarded by cardiac sphincter which prevents the regurgitation of food.\xa0Section of the stomach(2)\xa0Fundus : It extends above cardiac aperture and is filled with air.\xa0The part of cardiac stomach which extends towards anterior end above level of cardiac aperture is called fundus.(3)\xa0Body : It is the middle large part of the stomach.(4)\xa0Pyloric stomach : It is the distal narrowest part of stomach which opens into duodenum. Its opening is guarded by pyloric sphincter which permits the passage of fine-food particles into duodenum. | |
| 2056. |
R me know what |
| Answer» | |
| 2057. |
What are vegetative characteristics of a plant? |
| Answer» \tVegetative characters\tPlants mostly, herbs, shrubs and small trees Stem: herbaceous rarely woody, aerial; erect, cylindrical, branched, solid or hollow, hairy or glabrous, underground stem in potato\tLeaves: alternate, simple, rarely pinnately compound, exstipulate; venation reticulate | |
| 2058. |
What advantages does the five-kingdom classification have over the two-kingdom classification |
| Answer» In two kingdom classification, there was no differentiation between the eukaryotes and prokaryotes, unicellular and multicellular and photosynthetic and non-photosynthetic organisms. In the two-kingdom classification the bacteria, blue-green algae, fungi, mosses all were included under the kingdom Plantae. It placed together groups which widely differed from each other. A large number of organisms did not fall into any category. Thus, the two-kingdom classification was insufficient and inadequate.The five kingdom classification resolved the issues as it considered other factors like cell structure, mode of nutrition, thallus organisation, reproduction and phylogenetic relationships. This system of classification placed the organisms into five different categories. All the prokaryotes were placed under Kingdom Monera. The unicellular eukaryotes were placed under Kingdom Protista. The fungi occupied a separate kingdom. Thus, it proved to be adequate and much better than the two-Kingdom classification.\xa0 | |
| 2059. |
In which group of fungi have a both type of organism unicellular or multicellular organisms |
| Answer» Is ascomycetous is correct answer | |
| 2060. |
Which organism causes red tides |
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Answer» Dino flagellates ( gonyaulax) Dinoflagellates (Gonyaulax) gonyaulax Dinoflagellates |
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| 2061. |
Difference between rhodophyte and phaeophyte |
| Answer» Red, green, and brown algae have different types of pigments which give them their color. (Brown algae gets its color from the xanthophylls pigment fucoxanthin, red algae get their color from phycoerythrin, green is from chlorophyll.) These pigments have a certain chemical structure that allows them to absorb light. Phaeophyta (brown algae) A division of algae which includes no single-celled species; almost all are marine, growing mostly in the intertidal regions (but species of Bodenella and Heribaudiella occur in fresh water). They are the dominant seaweeds in the colder waters of the northern hemisphere. | |
| 2062. |
Describe the mode of Asexual Reproduction seen in fungi?????Me new to this app friends,plz help |
| Answer» Asexual reproduction in fungi:\tfission of somatic cell\tBudding of somatic cell\tFragmentation or disjoining of hyphae\tAsexual spore formation | |
| 2063. |
Differentiate between c3 and c4 plant |
| Answer» \tC3 PlantsC4 PlantsThe first stable intermediate product is 3- carbon acid:- phosphoglyceric acid.The first stable intermediate product\xa0is a 4 carbon acid:- oxaloacetate (which is then reduced to malate)Photosynthetic functions occur only in mesophyll cells – on the surface of the leavesPhotosynthetic functions occur in mesophyll and bundle sheath cells.C3 requires cool and wet environments.\xa0C4 requires tropical and dry environments.95% of the green plants are C3 plants.5% of the green plants are C4 plants.Examples include rice, wheat, oats, barley, cotton, peanuts, tobacco, sugar beets, soybeans and spinachExamples include Maize,\xa0Sugarcane, pearl millet,\xa0sorghum.Leaves of these plants DO NOT show Kranz anatomy.Leaves of these plants show Kranz anatomy.\t | |
| 2064. |
Nematodes are not found in |
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Answer» As They\'re Free living they can live anywhere they want.We can\'t tell any suitable place where they\'re not found. As They\'re Free living they can live anywhere they want.We can\'t tell any suitable place where they\'re not found. Nematodes are found in\xa0freshwater, soil, sea.Because they\'re Free living |
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| 2065. |
Difference between hapticopsida and anthocerotopsida |
| Answer» 1.\xa0HepaticopsidaThe gametophytes developed in this class is differentiated in a dorsiventral manner.The sporophyte of this class is not complex. It can be seen differentiated into foot and seta and also into capsule.2.\xa0AnthocerotopsidaThe gametophyte of this category is thalloid in nature. Scales as well as rhizoids are absent here.The sporogonium possesses foot and also a meristematic part and also a capsule. | |
| 2066. |
What are cone bearing plants called?? |
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Answer» Gymnosperm The cone bearing plants are called Conifers. |
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| 2067. |
What are the basis of animal classification? |
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Answer» It is deeply explained in ncert refer that it would help u Features such as arrangement of cells, body symmetry, nature of coelom, patterns of digestive, circulatory or reproductive systems are the basis of animal classification. |
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| 2068. |
PH Of Stomach in Human is about. A.) 7B.) 3C.) 8D.) 11 |
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Answer» 1.5-3 3 7 The actual ph level in the human stomach is b/t 1.5 to 3.5 1.5 to 3.5 so I think its option B.)3 |
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| 2069. |
What is pyrenoid body |
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Answer» Pyranoid is present in the chloroplast of alga. It is made by protien core and starch . It is bounded by starch seath. It is also called storage room of the chloroplast of the alga. It is genarally, present in only alga. The pyrenoid, a dense structure inside or beside chloroplasts of certain algae, consists largely of ribulose biphosphate carboxylase, one of the enzymes necessary in photosynthesis for carbon fixation and thus sugar formation. Starch, a storage form of glucose, is often found around pyrenoids. |
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| 2070. |
What is pachytene |
| Answer» \tPachytene is the third stage of meiosis prophase-1 (a five-stage process). It is preceded by the zygotene stage, where synapsis, i.e. pairing of homologous chromosomes take place.\tIn pachytene, exchange of genetic material between two homologous chromosomes known as\xa0crossing over\xa0takes place between non-sister chromatids of the homologous chromosomes.\t\tRecombination\xa0or\xa0crossing over\xa0takes place at this stage. In this process, there is an exchange of genetic material between non-sister chromatids of homologous chromosomes. There is rearrangement and reshuffling of the genetic material of two parental homologous chromosomes. It is an enzyme-mediated process. The enzyme involved in crossing over is known as\xa0recombinase.\tRecombination nodules appear and homologous chromosomes are linked to each other at the site of crossing over.\tRecombination is accompanied by the formation of chiasmata, which appear in the next stage called diplotene.\t | |
| 2071. |
Kupffer cells are found in :A.) Liver B.) Kidney C.) Heart D.) Blood |
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Answer» Liver Liver Liver. |
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| 2072. |
transpiration and absorption ratio experiment |
| Answer» Object:Demonstration of Relation between Transpiration and AbsorptionRequirements:A bottle with a side, tube, cork, a plant, oil, balance, etc.Experiment:Here, the apparatus must be completely filled up with water and air-tight. In the side marked tube of the apparatus some oil drops are being added so that the water may not evaporate. The cork is fitted in the wide mouth of the bottle in the way that the aerial part of a complete plant remains outside of it and the root system or the plant remains within the bottle.Now the apparatus is weighed on a pan balance to note its weight and thereafter it is kept for few hours in such a place where sufficient transpiration from the aerial parts of the plant takes place. In the end the apparatus is weighed once again and the difference from that of the original weight may be calculated.Observation:This way the quantity of transpired water is known in grams. The oil drops present on the surface of water in the marked side tube travel somewhat downward and we know the actual quantity of absorbed water in ml by the roots. By comparison, it is noted that the quantity of absorbed water is always greater than the transpired water because some of the water is used in other metabolic activities. | |
| 2073. |
Describe about reproduction in non-living organisms with examples |
| Answer» Nonliving things donot reproduce,they have no lifespan,They don\'t grow or develop,They don\'t respond to stimuli.Some Examples of things:Rock,Water. | |
| 2074. |
Briefly explanation on epithelium tissue |
| Answer» \tThis tissue which has a free surface faces either a body fluid or the outside environment and thus provides a covering or a lining for some part of the body is called epithelial tissues.\tThe cells are compactly packed with little intercellular matrix.\tThere are two types of epithelial tissues\tsimple epithelium\tcompound epithelium.\tSimple epithelium is composed of a single layer of cells and functions as a lining for body cavities, ducts etc.\tCompound epithelium consists of two or more cell layers and has protective function as it does in our skin. | |
| 2075. |
Which toxin is secreate by Gongaulax |
| Answer» Genus\xa0Alexandreum\xa0of dinoflagellates secretes neurotoxin saxitoxins which are the causative agents of paralytic shellfish poisoning (PSP). Molluscs such as mussels and clams feed on a large number of dinoflagellates, human consumption of those molluscs causes paralysis.\xa0Madness is a characteristic symptom of rabies which is caused by RNA virus “rabies virus” and is mostly spread through the bite of an infected dog.\xa0Syphilis is a sexually transmitted disease, caused by\xa0gram\xa0negative spirochete,\xa0Treponema pallidum.\xa0Plague is caused by\xa0gram\xa0negative rod shaped bacteria.\xa0Yersinia pestis\xa0and is characterised by flu-like symptoms. It is transmitted by bites from infected fleas.\xa0 | |
| 2076. |
Name hydrocolloid obtained from red algae |
| Answer» Hydrocolloids are the carbohydrates obtained from different species of algae.Algin\xa0is a hydrocolloid which has good water holding capacity derived from brown algae (Phaeophyceae).Agar is\xa0jelly like substance used in dairy toppings and other instant food products, derived from red algae (Rhodophyceae) | |
| 2077. |
What is bacteriophage? |
| Answer» Bacteriophage : Virus infection bacteria are known as bacteriophage. (a) These are obligate parasites that occur in soil, sewage water, fruits.(b) The phage possesses a tail and a head. .© The viral DNA is thread like ds (double standed) macromolecule.(d) There are 4 segments of the tail.(e) Bacteriophage are of two types : (i) Lytic and (ii) Lysogenic phoges e.g., phage (Lambda), T2 phage etc. | |
| 2078. |
What do you mean by diatomaceous Earth? |
| Answer» The accumulation of large amounts of cell wall deposits left back by diatoms over billions of years is called diatomaceous earth. | |
| 2079. |
Find mass of CO2 produced 5.8g of butane is burned |
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Answer» 17.6 You need answer or not |
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| 2080. |
Describe the various forms of reproduction in Algae |
| Answer» Sexual reproduction in algae are of three type:1. Isogamy:\xa0Fusion of morphologically and Physiologically similar gametes\xa0E.g.\xa0Ulothrix.\xa02. Anisogamy:\xa0Fusion of either morphologically or physiologically dissimilar gametes\xa0E.g.\xa0Pandorina\xa03. Oogamy:\xa0Fusion of both morphologically and physiologically dissimilar gametes.\xa0E.g.\xa0Sargassum.The life cycle shows distinct alternation of generation. | |
| 2081. |
What is whorl? |
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Answer» The four whorls of a complete flower are:First whorl: CalyxSecond whorl: CorollaThird whorl: AndroeciumFourth whorl: Gynoecium In botany, a whorl or verticil is an arrangement of leaves, sepals, petals, stamens, or carpels that radiate from a single point and surround or wrap around the stem or stalk. A leaf whorl consists of at least three elements; a pair of opposite leaves is not called a whorl |
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| 2082. |
Name the most common respiratory substrate |
| Answer» The compounds oxidised during the process of respiration are called as respiratory substrates. Carbohydrates, especially glucose, act as a respiratory substrate. Fats, proteins, and organic acids can also act as respiratory substrates depending upon the physiological condition of the body of an organism. | |
| 2083. |
Chose the corrot sequence alimentry canal of clockroach |
| Answer» What is living | |
| 2084. |
Respiration system in plant pdf |
| Answer» What is respiration system in plant | |
| 2085. |
Why is arthropoda the largest phylum? |
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Answer» Thank you yogita Phylum Arthropoda has\xa0almost a million species described to date. It\xa0accounts for 80% of known animal species. So phylum Arthropoda is the largest phylum in the animal kingdom. Several factors\xa0contributed to the success of arthropods especially the terrestrial arthropods as they adapted to solve the problems of support, stability, desiccation and respiration. |
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| 2086. |
What is lichens? |
| Answer» Lichens are the composite or dual organisms representing a symbiotic association between a fungus and alga. The fungal partner is called mycobiont whereas algal partner is called phycobiont. Algae prepares food for fungi and fungi provides shelter and absorbs mineral nutrient and water for its partner. Lichens grow on barren rocks, cooled volcanic lava and icy tundra soils. They can tolerate extreme dessication but not the polluted air. | |
| 2087. |
The features of viroids |
| Answer» Some of the characteristic features of viroids are given below-\tViroids contain only RNA.\tThese are known to be smaller in size and infect only the plants.\tThese are among the smallest known agents causing infectious disease.\tViroids are the species of nucleic acid with relatively low molecular weight and a unique structure.\tThey reproduce within the host cell which they affect in and cause variations in them causing death.\tViroids are mainly classified into two families namely Pospiviroidae- nuclear viroids and Avsunviroidae- chloroplastic viroids.\tViroids are said to move in an intracellular manner, cell to cell through the plasmodesmata, and a long-distance through the phloem. | |
| 2088. |
Brief description of cilia and flagella |
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Answer» Cilia moves fast and flagella moves slowly.Cilia have small hair-like structure and flagella have large hair-like structure. \tCilia and flagella are hair-like outgrowths of the cell membrane.\tCilia and flagella help in cell movement.\tCore of cilia and flagella is called the\xa0axoneme, possesses a number of microtubules running parallel to the long axis.\tThe axoneme usually has nine pairs of doublets of radially arranged peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the\xa09+2 array.\tThe central tubules are connected by bridges and is also enclosed by a central sheath, which is connected to one of the tubules of each peripheral doublets by a\xa0radial spoke\xa0and hence there are nine radial spokes.\tThe peripheral doublets are also interconnected by\xa0linkers.\tBoth the cilium and flagellum emerge from centriole-like structure called the\xa0basal bodies. |
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| 2089. |
What is S*X in biology ??M new student of bio..Plz help me in my studies.. |
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Answer» Hi Baby ?? s*x Hi Sharma sadul ?❤ |
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| 2090. |
investigatory project on sleeping pattern |
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| 2091. |
Why we fall ill? |
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Answer» Immunity plays a very important role in one\'s health..if one\'s immunity is strong he/she may not fell ill so soon..but if immunity is weak there is a probability of someone getting ill or sick..Hope this will help u this is title of class 9th chapter! \t\tWe fall ill because we live in an area with polluted surroundings or lack of personal hygiene.\t\t\tIt is very important to adopt certain strategies to stay healthy and prevent diseases.\t\t\tOne should remain active by exercising daily.\t It may be caused due to the attack of pathogens (virus, bacteria), lack of nutritious diet/balanced diet and lack of public health services.Hope it will help you. |
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| 2092. |
A person living in a coma is considered living or dead ? |
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Answer» Will be considered as living as metabolism is most important characteristic of a living organism The patient\xa0has no self-consciousness. So on this basis\xa0the person\xa0is\xa0considered\xa0as\xa0dead, but there are thousands of metabolic reactions occurring in the body, hence on the basis of metabolism\xa0the person\xa0is\xa0considered\xa0as\xa0living. So we can say that\xa0the person\xa0that lying in\xa0coma\xa0is neither\xa0living\xa0nor\xa0dead.Hope it will help you. Living because his heart is beating Living Dead because he is unconsicous |
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| 2093. |
What are the similar features of euglena in both plants and anima |
| Answer» Euglena is a unicellular eukaryote. Euglena has characteristics of both plants and animals. Euglena is flagellated. Euglena has plastids and performs photosynthesis in light, but moves around in search of food using its flagellum at night. There are around 1000 species of Euglena found. They are found in freshwater, saltwater, marshes and also in moist soil. | |
| 2094. |
What are blood cells that transport oxygen through the blood stream |
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Answer» Red blood corpuscles or erythrocytes Red blood cell (RBC) Red Blood Cells |
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| 2095. |
What is Malpighian body? |
| Answer» Malpighian body\xa0is the part of a nephron in the kidney. It consists of its cup-shaped end together with the glomerulus that it encloses. The\xa0Malpighian body\xa0filtrates the blood and separates waste from the blood. | |
| 2096. |
What is fossa ovalis ? |
| Answer» The\xa0fossa ovalis\xa0is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between right and left atrium. The\xa0fossa ovalis\xa0is the remnant of a thin fibrous sheet that covered the\xa0foramen ovale\xa0during fetal development. | |
| 2097. |
All types of cell |
| Answer» Cells are similar to factories with different labourers and departments that work towards a common objective. Various types of cells perform different functions. Based on cellular structure, there are two types of cells:Prokaryotes\xa0\tProkaryotic cells have no nucleus. Instead, some prokaryotes such as bacteria have a region within the cell where the genetic material is freely suspended. This region is called the nucleoid.\tThey all are single-celled microorganisms. Examples include archaea, bacteria, and cyanobacteria.\tThe cell size ranges from 0.1 to 0.5\xa0µm in diameter.\tThe hereditary material can either be DNA or RNA.\tProkaryotes reproduce by binary fission, a form of sexual reproduction.Eukaryotes\tEukaryotic cells are characterised by a true nucleus.\tThe size of the cells ranges between 10–100 µm in diameter.\tThis broad category involves plants, fungi, protozoans, and animals.\tThe plasma membrane is responsible for monitoring the transport of nutrients and electrolytes in and out of the cells. It is also responsible for cell to cell communication.\tThey reproduce sexually as well as asexually.\tThere are some contrasting features between plant and animal cells. For eg., the\xa0plant cell\xa0contains chloroplast, central vacuoles, and other plastids, whereas the animal cells do not. | |
| 2098. |
Explain three main type of cartilage...... ❓❓❓ |
| Answer» Cartilage is a thin, fibrous, flexible connective tissue, which is mainly found in the external ear, larynx, respiratory tract, and the articulating surface of the joints. These cartilages lack\xa0blood vessels; therefore, the growth and development of these tissues are slower compared to that of other tissues. Altogether, there are three different types of cartilages, namely:\tHyaline cartilage:\xa0It serves as a shock absorber and allows the smooth movement of the bones at joints. They are mainly found in the nose, respiratory tract, and joints\tFibrocartilage\xa0is found in the knee, and it is tough and inflexible.\tElastic cartilage\xa0is found in-ear, epiglottis, and larynx. It is the most flexible cartilage. | |
| 2099. |
Explain the various phases of meiosis I division with diagram |
| Answer» Meiosis\xa0is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our *** cells – sperm in males, eggs in females. During\xa0meiosis\xa0one cell\xa0divides twice to form four daughter cells. In each of these phases, there is a\xa0prophase, a\xa0metaphase, and\xa0anaphase\xa0and a\xa0telophase. In meiosis I these are known as\xa0prophase\xa0I,\xa0metaphase\xa0I,\xa0anaphase\xa0I and\xa0telophase\xa0I, while in\xa0meiosis II\xa0they are known as\xa0prophase II,\xa0metaphase II,\xa0anaphase II\xa0and\xa0telophase\xa0II. | |
| 2100. |
Glycolysis means?? |
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Answer» If you the ward lysis in biology it means breakdown of something. So glycolysis means break down of sugar. Hi Khushi The word\xa0glycolysis is\xa0of Greek origin, where \'glykos\'\xa0means\xa0sweet, and \'lysis\'\xa0means\xa0splitting. ... Hence,\xa0Glycolysis literally means\xa0"sugar splitting" or "sugar breaking"; this accurately describes the process of\xa0glycolysis, in which a 6-carbon sugar molecule\xa0is\xa0broken down into two 3-carbon molecules.\xa0The\xa0main purpose of glycolysis\xa0is to provide pyruvate for the trichloroacetic acid (TCA) cycle, not to make adenosine 5′-triphosphate. The\xa0glycolytic\xa0production of pyruvate reduces the cytosol by increasing the ratio of NADH [a reduced form of NAD+\xa0(nicotinamide adenine dinucleotide)] to NAD+. |
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