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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.
| 3151. |
Why some adults can\'t digest mlk? |
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| 3152. |
What is the function of coleorhiza? |
| Answer» It is a sheath in monocot seed which protects and covers radicle | |
| 3153. |
Difference between xylem and phloem? |
| Answer» \tXylemPhloemDefinitionXylem tissues are the tubular-shaped structure, with the absence of cross walls. This tissue resembles the shape of a star.Phloem tissues are tubular-shaped, elongated, structures with the presence of walls with thin sieve tubes.LocationIt is located in the centre of the vascular bundle.It is located on the outer side of the vascular bundle.FibresXylem fibres are smaller.Phloem fibres are larger.Found InThey are present in roots, stems and leaves.They are present in stems and leaves, which later transports and grow in roots, fruits and seeds.MovementsThese tissues move in a Unidirectional. (only in one direction – upward direction)These tissues move in a Bidirectional. (both ways – up and down)Comprises\xa0They live with hollow dead cells.They live with cytoplasm without the nucleus.No of TissuesThe total amount of xylem tissue is more.The total amount of phloem tissue is less.FeaturesIt consists of tracheids, vessel elements, xylem parenchyma, xylem sclerenchyma and xylem fibres.It consists of four elements: companion cells, sieve tubes, bast fibres, phloem fibres, intermediary cells and the phloem parenchyma.FunctionsTransports soluble mineral nutrients and water molecules from the roots to the aerial parts of the plant.Transports food and other nutrients including sugar and amino acids from leaves to storage organs and growing parts of the plant.Vascular BundlesForms vascular bundles with phloem.Forms vascular bundles with xylem.FunctionsProvides mechanical strength to the plant and helps in strengthening the stem.Translocates the synthesized sugars by the photosynthetic areas of plants to storage organs like roots, bulbs and tubers.FunctionsIt is responsible for replacing the total amount of lost water molecules through transpiration and photosynthesis.It is responsible for transporting proteins and mRNAs throughout the plant.\t | |
| 3154. |
In which form does endisperm provide nutrition to developing embryo |
| Answer» Primary endospermic nucleus (triploid) | |
| 3155. |
Special features of phyllum mollusca |
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| 3156. |
Living organisms classifieds |
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Answer» 1st kingdom classification was given by Aristotle Plants1) herbs2) shrubs3) tree Animal1) presents RBC2)not presents RBC2nd kingdom classification was given by Linnaeus1)plants2)animals3rd kingdom classification was given by haeckel1)plants2)animals3)protista4th kingdom classification was given by Copeland1)plants2)animals3)protista4)monera5th kingdom classification was given by R.H.Whittaker1)monera2)protista3)fungi4)plants5)animals Living organism are classified first by Aristotle into two kingdoms ,1 Plant kingdom 2 Animal kingdom But it was wrong.In 1969,RH whittaker proposed five king system of classification mainly 1 Monera2 Protista3 Fungi4 Animalia5 Plantae |
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| 3157. |
What is the function of bulliform cells? |
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| 3158. |
Where is mitochondria located in a cell |
| Answer» Mitochondria are located in the cytoplasm of cells along with other organelles of the cell. | |
| 3159. |
Why gymnosperms are known as gymnosperms |
| Answer» (gymnos:naked, sperma:seeds) these plants are not enclosed by any ovary wall, and remain exposed both before n after fertilisation | |
| 3160. |
What are ctenophores |
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| 3161. |
Explain the importance of bipolar spindles |
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| 3162. |
Why are cynobacteria popularly known as blue green algae are not algae any more? |
| Answer» cynobacteria have chlorophyll similar to green plants and are photosynthetic autotrophs. | |
| 3163. |
Name 2 anti cancer drug? |
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Answer» 1st anti cancer drug is VINBLASTIN (obtain from Vinca rosea plant).Nd whts the other one...?? Tobacco and Alcohol |
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| 3164. |
Do the guard cells invariably possess mitochondria..?? |
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| 3165. |
Short note on respiration |
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| 3166. |
What is primary root |
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| 3167. |
What is Nucleus? and mention its diagram |
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| 3168. |
What is a mesosome? |
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| 3169. |
What is dicot and monocot? |
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| 3170. |
Is active transport is a type of diffusion.?? |
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| 3171. |
What is interfasicular? |
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| 3172. |
How did bird produce rbc |
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| 3173. |
meaning of lichen |
| Answer» I know ..... I was only testing | |
| 3174. |
What is chaismata |
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| 3175. |
Difrence between rna and dna |
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| 3176. |
What is the full form of PPLO |
| Answer» Pluero Pnuemonia like organisms | |
| 3177. |
Difference between gaurd cell &epidetmal cell |
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| 3178. |
Tabular form differentiation of gaurd cell &epidermal cell |
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| 3179. |
What is the difference between Homeostasis and Adaptation? |
| Answer» Homeostasis\xa0- the most successful genes would be those that express for traits and behaviors that promote survival of the organism long enough to reproduce and ensure that its offspring survives to do the same.Stress - We commonly think of stress as being a state of mental or emotional overwhelm, usually as a result of work deadlines, lack of financial security, or problematic relationships. | |
| 3180. |
What are heterocyst |
| Answer» Heterocyst are specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria, such as Nostoc punctiforme, Cylindrospermum stagnale, and Anabaena sphaerica. They fix nitrogen from dinitrogen (N2) in the air using the enzyme nitrogenase, in order to provide the cells in the filament with nitrogen for biosynthesis. Nitrogenase is inactivated by oxygen, so the heterocyst must create a microanaerobic environment. The heterocysts\' unique structure and physiology require a global change in gene expression.For example heterocysts:Produce three additional cell walls, including one of glycolipid that forms a hydrophobic barrier to oxygen Produce nitrogenase and other proteins involved in nitrogen fixationDe-grade photosystem II, which Produces oxygen .Up-regulate glycolytic enzymes.Produce proteins that scavenge any remaining oxygen.Contain polar plugs composed of cyanophycin which slows down cell-to-cell diffusion. | |
| 3181. |
Name the enzyme which catalizes the bycarbonat formation is RBCS |
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| 3182. |
Exam pattern of practical for mid term |
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| 3183. |
Symbionts |
| Answer» A symbiont is an organism that is very closely associated with another, usually larger, organism. This larger organism is called a host. A symbiont can live on, in or sometimes very near its host.Symbiosis relationships can be obligate, meaning that one or both of the symbionts entirely depend on each other for survival. For example, in lichens, which consist of fungal and photosynthetic symbionts, the fungal partners cannot live on their own. | |
| 3184. |
Meaning of isogamy |
| Answer» Isogamy is a form of sexual reproduction that involves gametes of similar morphology (similar shape and size), differing in general only in allele expression in one or more mating-type regions. Because both gametes look alike, they cannot be classified as "male" or "female." | |
| 3185. |
Phylum Chordata |
| Answer» All chordates are characterized by four features at different stages of their life:\tNotochord– It is a longitudinal, cartilaginous rod running between the nerve cord and the digestive track. It acts as a support for the nerve cord. In vertebrates, it is replaced by vertebral column after the embryonic stage.\tDorsal nerve cord–It is a bundle of nerves which runs along the “back” and splits into the brain and the spinal cord\tPharyngeal slits–They are the openings which allow the entry of water through the mouth without entering the digestive system i.e., they connect mouth and throat.\tPostanal tail–It is an extension of the body to the ****. In chordates, the tail is composed of skeletal muscles which help in locomotion in fish-like species.\xa0Other features of chordates include:\tBilaterally symmetrical, triploblastic, coelomic and segmented body.\tThe body design is complex and well-differentiated.\tThe body has organ system level of organization. | |
| 3186. |
What is the difference between plasmodium and plasmodium |
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Answer» Plasmodium is the malarial parasite.Plasmodium is the colony of slime moulds difference between Plasmodium falciparum and Plasmodium vivax:\tP. vivax produces benign tertian malaria, but P. falciparum produces malignant tertian malaria.\tP. vivax lifecycle includes sporozoites that remain as hypnozoites, but there are no dormant stages in P. falciparum.\tIn P. falciparum, merozoites enter new RBCs, whereas P. vivax merozoites can invade RBCs of all ages.\tP. falciparum causes more severe infection on human than the P. vivax does. |
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| 3187. |
Morophology |
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Answer» Morphology is the external observation of anything Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. |
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| 3188. |
What is lock and key hypothesis |
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| 3189. |
Define inflorescence completely |
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| 3190. |
How cell are form? |
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| 3191. |
What is hetrosporous? |
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| 3192. |
Syllabus of biology for class 11th,SA1. |
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| 3193. |
What is the function of G2 phase? |
| Answer» G2 phase, or Gap 2 phase, is the second subphase of Interphase in the cell cycle directly preceding mitosis. It follows the successful completion of S phase, during which the cell’s DNA is replicated.G2 phase ends with the onset of prophase, the first phase of mitosis in which the cell’s chromatin condenses into chromosomes. G2 phase is a period of rapid cells growth and protein synthesis during which the cell prepares itself for mitosisExposure of mammalian cells to X rays results in prolongation of the cell cycle, including delays or arrests in G1, S and G2 phase. While G1-phase arrest occurs only in cells with wild-type p53 function, a G2-phase delay occurs in all cells regardless of p53 status. In this review, we summarize what is known about cell cycle progression through G2 and M phase and discuss the experimental findings that implicate different mechanisms in the G2-phase delay. Finally, we consider the possibility that G2-phase arrest plays a role in cell survival after irradiation. | |
| 3194. |
Wht r micorrhiza |
| Answer» The symbiotic relationship between gymnosperms and a fungus | |
| 3195. |
what is vexillary aestivation |
| Answer» Aestivation or estivation refers to the positional arrangement of the parts of a flower within a flower bud before it has opened.Vexilary aestivation is a mode of aestivation in which one large upper petal folds over, and covers, the other smaller petals, as in most papilionaceous plants. | |
| 3196. |
Explain cardiac cycle full |
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| 3197. |
Meaning of girth |
| Answer» A brand or strap which encircle the body especially one by which a saddle is fastened upon the back of a horse | |
| 3198. |
What is serous fluid? In nervous system |
| Answer» Serous fluid originate from mixed glands, which contain both mucous and serous cells. A common trait of serous fluids is their role in assisting digestion, excretion, and respiration. In medical fields, especially cytopathology, serous fluid is a synonym for effusion fluids from various body cavities. | |
| 3199. |
What are lysosoms |
| Answer» One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.Lysosomes are organelles inside animal cells that are fully membrane-bound; they\'re not present in red blood cells, though, and fungi have a similar structure called vacuoles that serves the same purpose but actually is not considered a lysosome. | |
| 3200. |
Characteristics of earth worms??? |
| Answer» Earthworms consist male and female in same body;;they are fossorial animal they are also detritivore ;its body contain special portion ootheca which store fertilized egg | |