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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.
| 301. |
specific characters of living |
| Answer» Growth,Reproduction, Metabolism | |
| 302. |
What are phyco colloids |
| Answer» Brown algae have a colloidal covering over their cellulosic cell wall, consisting of a mixture of polysaccharides collectively called phycocolloids. e.g., alginic acid (algin), fucoidin and fucin. These prevents drying or freezing (in water), when algae are exposed to air during low tides and protect cells when waves beat them against the rocks. | |
| 303. |
What is biological classification? |
| Answer» \t\tIdentification of differences among organisms and placing them into groups that reflect their most significant features and relationship is called biological classification.\t\t\tBiological classification was first proposed by Aristotle who divided plants into herbs, shrubs and trees. Animals were classified into with RBC’s and without RBC’s.\t | |
| 304. |
Why our heart beat? |
| Answer» To pump oxygenated and deoxygenated blood | |
| 305. |
State the volume of air remaining in the lungs after a normal breathing |
| Answer» The volume of air remaining in the lungs after a normal expiration is known as functional residual capacity (FRC). It includes expiratory reserve volume (ERV) and residual volume (RV). ERV is the maximum volume of air that can be exhaled after a normal expiration. It is about 1000 mL to 1500 mL. RV is the volume of air remaining in the lungs after maximum expiration. It is about 1100 mL to 1500 mL.∴FRC = ERV + RV≅ 1500 + 1500≅ 3000 mLFunctional residual capacity of the human lungs is about 2500 – 3000 mL. | |
| 306. |
By which organelle cell division take place in plant cell??? |
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Answer» Cytokinin Cytokineisis organelle and by the process of mitosis |
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| 307. |
What is the mechanism of respiration in man |
| Answer» Read in class 10 or not ???? | |
| 308. |
State whether semi lunar valves are open or closed during joint diastole. |
| Answer» During systole, the\xa0aortic\xa0and\xa0pulmonic valves\xa0open to permit ejection into the\xa0aorta\xa0and\xa0pulmonary artery. The\xa0atrioventricular valves\xa0are closed during systole, therefore no blood is entering the\xa0ventricles; however, blood continues to enter the\xa0atria\xa0through the vena cavae and\xa0pulmonary veins.\xa0The\xa0semilunar valves\xa0act in concert with the AV\xa0valves\xa0to direct blood flow through the heart. When the atrioventricular\xa0valves are open, the\xa0semi lunar valves\xa0are shut and blood is forced into the ventricles. When the AV\xa0valves\xa0shut, the\xa0semilunar valves open, forcing blood into the aorta and pulmonary artery. | |
| 309. |
What is platyhelminthes |
| Answer» Platyhelminthes very commonly known as flatworms or tapeworms, these animals are soft-bodied invertebrate animals. There are around 20,000 species of these animals. A few of these live as parasites on humans and other animals. It is because of this parasitic nature that they do cause some amount of trouble for the host animal. A few species belonging to this phylum can be a major cause of certain diseases. Schistosomiasis, or bilharzia or bilharziasis, is a disease caused by these parasitic flatworms belonging to the family Schistosomatidae. | |
| 310. |
Notes of respiration and exchage of gases |
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Answer» Exchange of gases:(a) Exchange of gases in lungs: It is also called external respiration. In this gaseous exchange oxygen passes from alveoli to pulmonary capillary blood and CO2. Comes to alveoli from pulmonary capillary.(2) Release of CO2 by the blood: The PCO2 (partial pressure of carbon dioxide) of blood reaching the alveolar capillaries is higher than the PCO2 of alveolar air. Therefore, carbon dioxide diffuses from the blood of alveolar capillaries into the alveolar air.(b) Exchange of gases in tissues: In the tissues, exchange of gases occurs between the blood and the tissue cells. This exchange occurs via tissue fluid that bathes the tissue cells. The blood reaching the tissue capillaries has PO2 higher than that in the tissue cells and PCO2 lower than that in the tissue cells. Hh |
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| 311. |
What is phogosytis? |
| Answer» Phagocytosis is the process of digestion\xa0of solid substances by cells. In this process, the cell surrounds the particle and engulfs it. The foreign particle is destroyed and its contents broken down. This process is used for ingestion or for destroying the foreign particle or pathogen. | |
| 312. |
Describe the coronary circulation in mammals. |
| Answer» Coronary circulation\xa0is the\xa0circulation\xa0of blood in the blood vessels that supply the heart muscle (myocardium).\xa0Coronary arteries\xa0supply oxygenated blood to the heart muscle, and\xa0cardiac\xa0veins drain away the blood once it has been deoxygenated.\xa0From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart. The\xa0coronary arteries\xa0are the only vessels that branch from the ascending aorta. The brachiocephalic, left common carotid, and left subclavian\xa0arteries\xa0branch from the aortic arch. | |
| 313. |
What is a portal vein? Give an example. |
| Answer» The\xa0portal venous system\xa0refers to the vessels involved in the drainage of the capillary beds of the GI tract and spleen into the capillary bed of the liver.\xa0Blood\xa0flow to the liver is unique in that it receives both oxygenated and deoxygenated\xa0blood.\xa0In carrying venous blood from the gastrointestinal tract to the\xa0liver, the portal vein accomplishes two tasks: it supplies the\xa0liver\xa0with metabolic substrates and it ensures that substances ingested are first processed by the\xa0liver\xa0before reaching the systemic circulation. | |
| 314. |
Characteristics of archaebacteria |
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Answer» So long answer yr Archaebacteria are almost as old as the Earth. They came into existence when the Earth was in its nascent stage and the conditions were extreme. Till date, these organisms live in conditions that mimic the extreme ones that were the norm, when the Earth was just beginning to take shape.The image shown alongside, is of the Grand Prismatic Spring in Yellowstone National Park. The brilliant colors observed in the spring, are attributed to archaebacteria. Archaebacteria kingdom is a group of bacteria that are anaerobic, as well as aerobic prokaryotes. These bacteria are adapted to living in extreme environmental conditions, like near volcanic activity, deep oceans, etc, and do not need oxygen and light to survive. All living organisms are placed in the five kingdom system: plantae, animalia, fungi, protoctista and monera. Not so long ago, before 1977, archae were considered to be a group of bacteria. They were thus, placed in Kingdom Plantae. Soon, they were placed under the new kingdom Monera, after the bacteria. Carl Woese and George Fox, were two scientists who proposed in 1977, that archaebacteria should have a separate kingdom of their own. By 1990, scientists found out that the 16S rRNA and 18S rRNA sequences were totally different in archea from other bacteria. Genome analysis of archaea in 2003, confirmed that they are different from bacteria. Thus, finally they were removed from kingdom Monera and the five kingdom of living things was converted into six kingdom system, with the inclusion of the new archaebacteria kingdom. Do you want to know what is the difference between archaebacteria and bacteria? The following characteristics will help you understand the reason for this transition.In a Nutshell Kingdom: ArchaebacteriaType of Organism: Unicellular Cellular Structure: Prokaryotic Habitat: Extreme Environment Peptidoglycan in Cell Wall: Absent Reproduction Method: Asexual Nutrition Mode: Heterotrophs/Autotrophs Characteristics of Archaebacteria The term achaio is a Greek word for \'ancient\'. This term aptly describes the archaebacteria who are thought to have a common ancestor like the bacteria and eukaryotes. Archaebacteria is similar in structure to eukaryotes than bacteria. There are several archaebacteria kingdom characteristics that help in distinguishing them from eubacteria. These characteristics of archaebacteria are as follows:Archaebacteria have no peptidoglycan in their cell walls.The cell wall is made up of glycoproteins and polysaccharides.The cell wall envelopes have a high resistance to antibiotics and lytic agents due to difference in cell wall composition.They have a very different lipid bi-layer making up the cell membranes.The RNA polymerase of archaea is very similar to that of eukaryotes.The ribosomal proteins in eukaryotes and archea are also similar to each other.Archaebacteria are about 1/10th of a µmeter to about 15 µmeter in size. A few are flagellated and the flagella structure is different from the flagella of other bacteria. The archaebacteria are non-pathogenic bacteria that live in and around other organisms. However, they do not cause any infections or diseases. Sub-groups of Archaebacteria Archaebacteria are autotrophs and use CO2 in atmosphere as a source of carbon for a process called carbon fixation. Archaebacteria are able to survive in extreme conditions and therefore also known as extremophiles. They can survive in conditions that are highly acidic, alkaline, saline aquatic environment. Some are even able to survive in temperatures above 100° Celsius or 212° Fahrenheit. Few can even withstand over 200 atmosphere pressure and live really deep within the earth. They employ different chemical reactions to be able to survive in these harsh conditions. Thus, they are divided into 3 subgroups - methanogens, extreme halophines and thermoacidophiles. Let us learn more about the characteristics according to the sub-groups.1. MethanogensMetanogens are able to reduce CO2 into methane (CH4). They are obligately anaerobic and can die if exposed to oxygen. They produce marsh gas that can be observed as bubbles in stagnant water. They are also present in the gut of cattle and termites, since there is no oxygen there. Methanogens use carbon dioxide as an electron acceptor to oxidize hydrogen using co-enzymes like co-enzyme M and methanofuran. These co-enzymes are very unique to archaebacteria. These bacteria are rod shaped or spherical, and can be gram positive as well as negative.2. HalophilesHalophiles are bacteria that can survive in 10 times the concentration of salt present in sea. You can find halophilic archaebacteria in Great Salt Lake in Utah and the Dead Sea in Middle East. Halobacter uses photophosphorylation for metabolism. They use light activated ion pumps like bacteriorhodopsin and halorhodopsin for generation of ion gradients to pump out ions across the plasma membrane. The energy that is stored in the electrochemical gradients is converted to ATP by ATP synthase. They contain bacteriorhodopsin, a red or orange pigment.3. ThermoacidophilesThe thermoacidophiles are organisms that can survive in extremely high temperatures and low pH. They can survive in 100° Celsius with a pH of 2. Most of these organisms are anaerobic in nature.Reproduction in archaea is carried out asexually by binary or multiple fission, fragmentation or budding. They do not undergo meiosis and therefore organisms of a species that are present in more than one form share the same genetic matter. Archaebacteria do not form spores and a few species of Haloarchaea undergoes phenotypic switching. This means it can grow several different cell types that are resistant to osmotic shock. Thus, the organisms can survive in low salt concentration aquatic environment. Importance of ArchaebacteriaArchaebacteria are important, nay, almost indispensable, for the following reasons:They have phylogenetic importance that helps in studying their homology and establish their phylogeny.Their ability to tolerate extreme conditions helps researchers learn about the climatic conditions, environment and their survival on ancient earth.Methanogens can grow in biogas fermentors and decompose cow dung into methane gas as a by-product. Thus, they are used for production of domestic gas for cooking.Organisms like Methanobacterium ruminantium are present in the guts of ruminating animals, helping them digest the cellulose.Poor ores of molybdenum are microbial leached using Sulfolobus.Archaebacteria are also used to synthesize thermophilic enzymes, restriction enzymes and are also used as biosensors.Archaebacteria have an important role in many chemical cycles, like carbon cycle, nitrogen cycle, sulfur cycle, etc.Due to their extremophilic nature, archaebacteria have proven to be of great help in the field of Bioechnology, by helping in the production of enzymes that work at very high temperatures, as well as in the production of some antibiotics.Examples of ArchaebacteriMethanobacteriumMethanococcusMethanospirillumHalococcusHalobacteriumThermoplasmaThermoproteusSulfolobusPyrolobus fumariiMethanococcus jannaschiiNanoarchaeum equitansIgnicoccusThe characteristics of archaebacteria kingdom prove that life can exist anywhere, under any condition. The mere existence of these extremophiles gives us hope. Maybe we will discover something on the other planets yet! |
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| 315. |
Benefits of zoological parks plz answer hurry |
| Answer» A\xa0zoo\xa0(short for\xa0zoological\xa0garden; also called an animal\xa0park\xa0or menagerie) is a facility in which animals are housed within enclosures, cared for, displayed to the public, and in some cases bred. The main\xa0importance of zoos\xa0is their ability to educate visitors and impart a connection to wild animals. ... The connections that people make with wild animals when they visit a\xa0zoo\xa0help them to care about animals, and overcoming apathy is half the battle towards conservation. | |
| 316. |
What are 6 classes each with 4-13 sub classes of enzymes? |
| Answer» Google it | |
| 317. |
The living state is a non equilibrium steady state How this possible?????? |
| Answer» Living organism are not in equilibrium because system at equilibrium cannot perform work. The living organisms exist in a steady state characterised by concentration of each of the biomolecules. These biomolecules are in a metabolic flux. Any chemical or physical process movessimultaneously to equilibrium. As living organisms work continuously, they cannot afford toreach equilibrium. Hence, the living state is in a non-equilibrium steady-state to be able toperform work. This is achieved by energy input provided lay metabolism. | |
| 318. |
Imp questions of ch 1of 11class living world |
| Answer» | |
| 319. |
Metabolism parts |
| Answer» Metabolism has two parts...Catabolism and anabolism...catabolism is the breakdown of food component like carbohydrate....andAnabolism is the synthesis of food component like photosynthesis ? | |
| 320. |
Formation of lactose |
| Answer» Lactose is a disaccharide. It is a\xa0sugar\xa0composed of galactose and glucose subunits and has the molecular formula C12H22O11.\xa0Lactose\xa0is made from galactose and glucose units.Lactose\xa0or milk sugar occurs in the milk of mammals - 4-6% in cow\'s milk and 5-8% in human milk. It is also a by-product in the manufacture of cheese. | |
| 321. |
Describe the process of respiration |
| Answer» The function of respiratory system is to breathe in oxygen for respiration (producing energy from food), and to breathe out carbon dioxide produced by respiration.The major organs of respiratory system in human beings are: (i) Nose (ii) Nasal Passage (iii) Trachea (iv) Bronchi (v) Lungs and (vi) diaphragm.\xa0In human beings, air is taken into the body through the nostrils, is filtered by fine hairs that line the passage. When air passes through the nasal passage, the dust particles and other impurities present in it are trapped by nasal hair and mucus so that clean air goes into the lungs. From here, the air passes through the throat and into the lungs. Trachea does not collapse even when there is no air in it because it is supported by rings of soft bones called cartilage.Within the lungs, the passage divides into smaller and smaller tubes which finally terminate in balloon-like structures which are called alveoli. The alveoli provide a surface where the exchange of gases can take place. The walls of the alveoli contain an extensive network of blood vessels. When we breathe in, the ribs are lifted up and the diaphragm flattens which increases the size of the chest cavity. Because of this, the air is sucked into the lungs and fills the expanded alveoli. The blood brings carbon dioxide from the rest of the body for release into the alveoli, and the oxygen in the alveolar air is taken up by the blood in the alveolar blood vessels to be transported to all the cells in the body. During the breathing cycle, when air is taken in and let out, the lungs always contain a residual volume of air so that there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released. | |
| 322. |
What is the main process of kerb cycle |
| Answer» Krebs Cycle – It is an aerobic process that takes place in the mitochondria that involves the oxidation of pyruvic acid into water and carbon dioxide. Two acetyl residues liberate two ATP and GTP molecules through substrate level phosphorylation . Doesn’t consume ATP | |
| 323. |
What is chloroplast and function |
| Answer» (1) Chloroplast are the centres of photosynthesis.(2) They liberate oxygen which is passed into the atmosphere.(3) These store fats in the form of plastoglobuli.(4) These help in maintaining the balance of gases in the atmosphere.(5) They can change into the chromoplasts to provide colour to many flowers and fruits. | |
| 324. |
What is the function of storma of plastids |
| Answer» Initially, the stroma was thought to simply provide support for the pigmented thylakoids. However it is now known that the stroma contains starch, chloroplast DNA and ribosomes, as well as all the enzymes required for light-independent reactions of\xa0photosynthesis, also known as the Calvin cycle. Most of the enzymes essential in the process of photosynthesis are normally embedded in the\xa0stroma\xa0and in the thylakoid membranes. The\xa0stroma\xa0is the fluid-filled space that is surrounding the grana, and is also involved in the synthesis of organic molecules from water and carbon dioxide. | |
| 325. |
Which is largest animal in the world |
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Answer» Blue whale Blue whale is the largest animal ever in the world |
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| 326. |
What is nucleus pulposus |
| Answer» Nucleus pulposus is present at centre of intervertebral disc.It is a soft central part and is reminant of embryonic notochord. | |
| 327. |
Functional unit of human being |
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Answer» Cell Cell is the structural and functional unit of life Cell |
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| 328. |
Is polysiphonia is included in cynobacteria |
| Answer» Polysiphonia\xa0is a member of the order Ceramiales. The genus\xa0Polysiphonia\xa0derives its name from the polysiphonous nature of its thallus. The central siphon is surrounded by 4–24 pericentral siphons.\xa0Polysiphonia\xa0is commonly found as an epiphyte on plants and lithophyte on rocks in brackish estuaries in the intertidal and sublittoral regions. Most species prefer quiet waters whereas some are found in rough or even polluted waters.\xa0The filamentous thalli are brownish red to dark purple colored, highly branched and with a feathery appearance.\xa0Polysiphonia\xa0is a heterotrichous alga having an erect series of branches and a filamentous prostrate section attached to the substratum by means of unicellular rhizoids.\xa0 | |
| 329. |
My question is that what is taxonomy |
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Answer» Classification of organisms is known as taxonomy Father of taxonomy is Ernst mayr Taxonomy is an important branch of science Taxonomy is a science that deals with naming, describing and classification of all living organisms including plants. Classification is based on behavioral, genetic and biochemical variations. Characterization, identification, and classification are the processes of taxonomy.Organisms are classified into similar categories namely kingdom, phylum, class, order, family, genus and species. |
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| 330. |
Hello friends!!!! Welcome in class 11th |
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Answer» Thanx same 2 u Thanks Ok |
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| 331. |
Represent schematically the pathway of lactuc acid fermentation |
| Answer» | |
| 332. |
Correct defenition of plant Kingdom |
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Answer» Photosynthetic eukaryotes that have call wall made of cellulose are called plants Plantae is the plant kingdom which includes all plants on the earth. They are multicellular eukaryotes. Typically, they consist of a rigid structure that surrounds the cell membrane called the cell wall. Plants also have a green coloured pigment called chlorophyll that is quite important for photosynthesis. |
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| 333. |
Name the fourth scientists who claaified the species |
| Answer» Carolus Linnaeus is the scientist who classified the species into kingdom plantae and kingdom animalia | |
| 334. |
What may be a photosynthetic protistian to one biologist may be a plant to another explain this line |
| Answer» \xa0Prostista is the most diverse kingdom among five kingdoms. All single celled eukaryotes have grouped in this Kingdom. The organisms placed under this Kingdom are very different. Some have chloroplasts, some have cilia and flagella, some are protozoans.Scientists are still working on getting a better understanding about Kingdom Protista. When one scientist may have a particular finding about a protist, the other scientist may draw different findings and conclusions about the same protest. | |
| 335. |
Why is blood group identification not needed for serum transfusion? |
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Answer» It can occur among any blood group ????????? |
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| 336. |
Hi guys,I am new to class 11 i would like to know if it is hard to study???I am from Bi.P.C |
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Answer» Me 2 new I think its ezy I\'m also new to it. i m also new to class 11..i think this question is not relevant bcoz if u have some goal thn u should fulfill it n should never think of hard.. I am also from PCB . I think it is simple |
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| 337. |
Hey guys!! Suggest me some best refreshers for pcb subjects.. |
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Answer» ABC for bio Abc book for chemistry and pradeep for physics Dinesh and NCERT at fingure tips |
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| 338. |
How becteria link with fungi and insect ? |
| Answer» Fungal-bacterial\xa0endosymbiosis encompasses the mutualistic\xa0relationship between\xa0a\xa0fungus\xa0and intracellular\xa0bacteria\xa0species residing within the\xa0fungus.\xa0A lichen is a combination of\xa0fungus\xa0and/or\xa0algae\xa0and/or cyanobacteria that has a very different form (morphology), physiology, and biochemistry than any of the constituent species growing separately. The\xa0algae\xa0or cyanobacteria benefit their\xa0fungal\xa0partner by producing organic carbon compounds through photosynthesis. | |
| 339. |
Do Aseptate and septile make mycelium by linking each other |
| Answer» The mycelia and the hyphae are both important parts of fungi, more commonly known as the mushroom. The two terms refer to the building blocks of fungi.Hyphae (plural form; singular form is hypha) is the name of the long, individual pieces that comprise a mycelium. Hyphae are often described as strings and threadlike filaments. The hypha is the basic body plan of a fungus. It is comprised of one or more cells surrounded by a tubular cell wall.Hyphae can be classified into categories by their cell division, by their cell wall and overall form, and by their refractive appearance. Hyphae by cell division can be further classified as septate (with septa), aseptate (without septa), and pseudohyphae. The first two classifications are considered to be “true” hyphae.\xa0\xa0 | |
| 340. |
What is activation energy of enzyme? |
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Answer» No Activation energy is the minimum amount of energy that is needed to start a chemical reaction. Activation Energy refers to the energy that must be provided to potential reactants in a chemical or a nuclear system in order to spark a chemical reaction or a nuclear reaction.A negative value of activation energy is found in the Arrhenius equations of reactions wherein the rate of reaction slows down due to an increase in temperature. |
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| 341. |
What is heart transplant ?when it is done and what is theneed? |
| Answer» A\xa0heart transplant\xa0is an operation in which a diseased, failing\xa0heart\xa0is replaced with a healthier donor\xa0heart. A heart\xa0transplant\xa0is a treatment that\'s usually reserved for people whose condition hasn\'t improved enough with medications or other surgeries.Heart transplants are performed when other treatments for heart problems haven\'t worked, leading to heart failure. In adults, heart failure can be caused by:\tA weakening of the heart muscle (cardiomyopathy)\tCoronary artery disease\tHeart valve disease\tA heart problem you\'re born with (congenital heart defect)\tDangerous recurring abnormal heart rhythms (ventricular arrhythmias) not controlled by other treatments\tFailure of a previous heart transplant | |
| 342. |
Kaun kaun pcb liya h☺☺ |
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Answer» Mai Admission ho gaya kya Me....???? |
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| 343. |
What is rhe difference between a taxa and a taxon..? |
| Answer» The\xa0category\xa0is an abstract term that simply represents a rank or a level.\xa0Taxon\xa0represents a biological object and is assigned to a\xa0category. For example,\xa0taxon\xa0of birds is aves and the\xa0category\xa0is class.\xa0The\xa0Taxonomic\xa0Hierarchy. A\xa0taxon\xa0(plural:\xa0taxa) is a group of organisms that are classified as a unit. This can be specific or general. Species and orders are both\xa0examples\xa0of\xa0taxonomic\xa0ranks, which are relative levels of grouping organisms in a\xa0taxonomic\xa0hierarchy.\xa0Taxa\xa0is a plural form\xa0of Taxon.\xa0Taxon, plural\xa0Taxa, any unit used\xa0in the\xa0science\xa0of\xa0biological classification, or\xa0taxonomy.\xa0Taxa\xa0are arranged\xa0in a\xa0hierarchy from kingdom to subspecies, a given\xa0taxon\xa0ordinarily including several\xa0taxa of\xa0lower rank. | |
| 344. |
What is a taxa |
| Answer» Taxon is the representation of any level of the taxonomic category. It is constructed by individual biological objects. Taxon can be of monophyletic or polyphyletic generation.\xa0 | |
| 345. |
Explain auxiliary bud |
| Answer» The\xa0axillary bud\xa0(or lateral\xa0bud) is an embryonic or organogenic\xa0shoot\xa0located in the axil of a leaf. Each\xa0bud\xa0has the potential to form shoots, and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots (flowers).\xa0Their\xa0main function\xa0is to provide support to the plant, holding leaves, flowers, and\xa0buds; in some cases, stems also store food for the plant. An\xa0axillary bud\xa0is usually found in the axil (the area between the base of a leaf and the stem) where it can give rise to a branch or a flower. | |
| 346. |
10 main function of mesosome |
| Answer» Functions of mesosomes:\tMesosomes help in cell wall formation.\tThey also help in DNA replication and distribution to daughter cells.\tThey help in respiration, secretion and to increase the surface area of the plasma membrane and the enzyme content. | |
| 347. |
What are the examples of polyandrous and synandrous |
| Answer» Mating with more than one pollen donor, or\xa0polyandry, is common in land\xa0plants. In flowering\xa0plants,\xa0polyandry\xa0occurs when the pollen from different potential sires is distributed among the fruits of a single individual, or when pollen from more than one donor is deposited on the same stigma. Synandrous means having stamen fused along both their filaments and anthers. (botany, rare) Having stamens fused together in any way. | |
| 348. |
What is histoone |
| Answer» Histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes. | |
| 349. |
How would you represent a well labelled colony of Volvox? |
| Answer» Volvox\xa0is a Chlorophyte, or green alga. It exists as a grand spherical\xa0colony. Each little alga within the\xa0colony\xa0bears two flagella, whip-like hairs. The individual alga are connected to each other by thin strands of cytoplasm that enable the whole\xa0colony\xa0to swim in a coordinated fashion.\xa0Volvox is a polyphyletic\xa0genus\xa0of chlorophyte green\xa0algae\xa0in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells. They live in a variety of freshwater habitats, and were first reported by Antonie van Leeuwenhoek in 1700. | |
| 350. |
Is duodenum c shaped or u shaped? |
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Answer» "U" shape It depends on the angle that\'s why u can say it both "c" and "u" shape |
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