

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.
5701. |
4. Differentiate between biodegradable and nonbiodegradable substances. Give examples.5. Give some examples of terrestrial and aquatic ecosystems. |
Answer» terrestrial ecosystem-These includetaiga,tundra,deciduous forest,grasslands,tropical rain forests, anddeserts.Taigasare cold-climate forestsfound in thenorthernlatitudes.Taigasare the world's largest terrestrial ecosystem and account for about 29% of the Earth'sforests. aquatic ecosystem-There are three basic types offreshwater ecosystems:Lentic: slow moving water, including pools,ponds, and lakes.Lotic: faster moving water, for examplestreamsand rivers.Wetlands: areas where thesoilis saturated or inundated for at least part of the time. |
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5702. |
(d) 10-12 mm5-7 mm19. Which of the following statements are false?(1) Outer cortex and inner medulla are the two zones in kidney.(ii) Medulla is divided into few renal pyramids.(iii) Pyramid projects into calyx.(iv) Inward extension of cortex between the pyramids is called renal column of Bertin(a) (i) and (iv)(b) (ii) and (iv)(e) (ii) and (ii) (d) of thesekidney. Identify the parts labelled as A to D |
Answer» Option (a) is the right answer. option a is the correct answer |
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5703. |
dNamethestructuraland functional unit of the nerve system. Draw its neat and labeleduagram and write any two functions151 |
Answer» Neurons are thestructural and functional units of the nervous system. They consist of a cell body, dendrites, and axon. Function:1.The specialized structure and organization ofneuronsallows them to transmit signals in the form of electric impulses from the brain to the body and back 2.The main function of allneurons(nerve cells) is to maintain an environment that makes sure thataction potentials(A/Ps) are timely received and processed, and to initiate and propagate new A/Ps. |
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5704. |
What are the functions of the pituitary gland? List two hormones it produces and give their func |
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5705. |
. Give functions.a. Plasma membrane |
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5706. |
give the functions of auxins |
Answer» Ans :- They are produced in thestem, buds, and root tips. Example: Indole Acetic Acid (IA). Auxin is a plant hormone produced in thestem tipthat promotescellelongation. Auxin moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant. |
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5707. |
What is a Lymph? Write two functions of lymph. |
Answer» Thelymphaticsystem is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primaryfunctionof thelymphaticsystem is to transportlymph, a fluid containing infection-fighting white blood cells, throughout the body.Thelymphaticsystem has multiple interrelatedfunctions: It is responsible for the removal of interstitial fluid from tissues. It absorbs and transports fatty acids and fats as chyle from the digestive system. It transports white blood cells to and from thelymphnodes into the bones. |
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5708. |
(b)Write the mechanism by which fishes breath in water.tuctures nresent in lungs. List its two functions. |
Answer» A fish breathes by taking water into its mouth and forcing it out through thegillpassages. As water passes over the thin walls of the gills, dissolved oxygen moves into the blood and travels to the fish's cells. Please hit a like if you find it useful |
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5709. |
1. Match the following (column I with column II)Column I(a) Chlamydomonas(b) Cycas(c) Selaginella(d) SphagnumColumn â Ą(i) Moss(i) Pteridophyte(iii) Algae(iv) Gymnosperm |
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5710. |
04. True or false?1. Living elements: animals, plants, etc. are biotic elements. T/F2. Carbon foot print is the total carbon emissions by an individual, family, industry andservice sector to support human activities. T/F3. Humanity's entire life support system does not depends on the well-being of all thespecies living on earth. T/F4. Biofuels, like bioethanol, are extracted from chemicals. T/F3. Biodiversity is the sum of diversity at various levels: ecosystems, species, populationsand genes. T/F |
Answer» tffft true false false false true truefalsefalsefalsetrue true false false false true truefalse falsefalse true |
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5711. |
III.Find another name1. Xylem & phloem2. Skeletal Tissue3. Fluid connect Tissue4. Fat tissue5. Unstriatedt muscular tissue |
Answer» 1. transport tissue what about other 4? 1-xylem-vascular tissue pholem-bast2-skeletal tissue----?3-flyid connect tissur-lymph4-fat tissue-adipose tissue5-unstriated muscules tissue - u cn say smooth.. |
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5712. |
122. A lateral branch with short internodes with each nodemeric,bearing a rosete of leaves and a tuft of roots is foundin aquaticf plants like(a) Pistia and Eichhornia(b) Vallisneria and Eichhornia(c) Pistia and Hydrilla(d) Eichhornia and Hydrillaods |
Answer» A lateral branch with short internodes with each node bearing a rosete of leaves and a tuft of roots is found in aquatic plants like Plstia and Eichhornia |
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5713. |
Seed contain a food laden tissue, is called ......... for future growth of embryoa) Endospermm(b) Plumule(c) Radicle(d) Seed cover |
Answer» The "meat" of theseedis endospermtissue(B) and a small, cylindrical embryo is embedded in this nutritivetissuejust opposite the functional germination pore. Theseedis surrounded by an outer brown layercalledtheseedcoat or testa. option a |
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5714. |
when a seed germinate a small tip is come out from the soil what we call that tip |
Answer» It is called the radical. |
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5715. |
Q.1. Mitosis in onion root tip. |
Answer» | |
5716. |
SECTION-BDifferentiate between onion peel and cheek cet |
Answer» An onion cell is a plant cell, and a cheek cell an animal cell. The main differences between plant and animal cells are that plant cells have: Cellulose cell wall Large vacuole Chloroplasts (if the plant is green) Cellulose cell wall Large vacuole Chloroplasts (if the plant is green) from the inner lining of the mouth. The lining is a mucous membrane similar to those found all throughout our digestive tract. When you view a "cheek cell" scraping through a microscope on high power, you will see many cells that have been overlapped or rolled up. When you find one or a group of cells, each cell will have an irregular edge and a distinct nucleus in its center. The cells have will have an irregular edge and a distinct nucleus in its center. The cells have described as looking like a fried egg, sunny side up (but transparent). Onion skin cells seen through the microscope are also transparent. However, they are generally rectangular in shape, with a distinct cell wall. Like all cells, there is also a plasma membrane surrounding the cell contents, but it clings closely to the cell wall and is hard to see with a light microscope. Inside the onion cell one can see a nucleus and tiny grainy objects in the cytoplasm. |
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5717. |
what are the medicinal use of onion especially in sunstroke |
Answer» juice of onion is useful in sunstroke and also helpful in vomiting |
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5718. |
4. Match the items given in column A and B:Column AColumn B(a) Catalytic converter (1) Particulate matter(b) Electrostatic precipitator (ii) Carbon monoxide and nitrogen oxides(c) Earmuffs(iii) High noise level(d) Landfills(iv) Solid wastes |
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5719. |
190. Which of the following has beenfound useful in keeping cholesterol.level down?(a) Tulsi(c) Garlic20(b) Turmeric(d) Serpentina |
Answer» Answer of this question is option-cas Garlic helps in reducing cholesterol as it is having some sort of antioxidants Tysm |
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5720. |
The values of current (I) flowing through a given resistor of resistance (R), forthe corresponding values of potential difference (V) across the resistor are as givenbelow:V (volts) 0.5 .0 15 2.0 2.5 3.04.0 5.0I (amperes) 0.0.2 0.3 0.4 0.5 0.6 0.8 1.0Plot a graph between current (I) and potential difference (V) and determine theresistance (R) of the resistor.31/112 |
Answer» V - I graph as shown in figure . Here points lie on the equation of line {where variables are V and I } are (1.6 ,0.5) , (3.4,1.0) , (6.7, 2.0) , (10.2, 3.0) and (13.2, 4.0) Now , use Ohm's law , V = IR R = V/I , means Resistance is the slope of graph V - I So, R = (V₂ - V₁)/(I₂ - I₁) V₂ = 3.4V, V₁ = 1.6V , I₂ = 1A and I₁ = 0.5A So, R = (3.4 - 1.6)/(1 - 0.5) = 1.8/0.5 = 3.6 Hence, resistance , R = 3.6Ω similarly R= (V₃ - V₂)/(I₃ - I₂) = (6.7 - 3.4)/(2 - 1) = 3.3 R = (V₄ - V₃)/(I₄ - I₃) = (10.2 -6.7)/(3-2) = 3.5R=(V₅ - V₄)/(I₅ - I₄) = (13.2 - 10.2)/(4-3) = 3 here R is variable so, take average of all . Rav = (3.6 + 3.3 + 3.5 + 3)/4 = 13.4/4 = 3.35Ωhence, resistance = 3.35Ω |
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5721. |
A cell organelle responsible for cellular respiration. |
Answer» respiration is theoxidativephosphorylation phase, which occurs in thecristaeof themitochondria. |
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5722. |
Amino acids are to proteins as(a) pepsin to pepsinogenb) sucrose to sucrase(c) nucleotides to nucleic acid(d) actin to myosin |
Answer» The answer is option C |
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5723. |
Proteins are formed by condensation ofa) Nucleic acidsc) Fatty acidsb) Amino acidsd) Carbohydrate |
Answer» | |
5724. |
Which cell organelle connects nuclearenvelope with cell membrane?(1) Lysosome(2) Golgi bodies(3) Endoplasmic reticulum(4) Mitochondria |
Answer» Endo plasmic reticulum 1 Lysosome is the perfect answer |
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5725. |
In photosynthesis amino acid formed in- (a)chloroplast, (b)paroxysom, (c)mitochondria, (d)a and b both |
Answer» The answer is option a) |
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5726. |
II. Fill in the blanks by choosing an appropriate word fromgiven box:Mitochondria Chloroplast Cells Proteins DNAorganelle is called 'Kitchen' of the cell.are the basic building blocks of life.are known as Power house' of the cell.2.3.4. Nucleolus helps in synthesis of5. Chromosomes are made up of nucleoprotein called |
Answer» ChloroplastCellsMitochondriaproteinDNA |
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5727. |
15.X2015. x-327-117. 6-19. 40+3r-21.-2/3x - 2423. x2 + 2x - 2425. r-x-15627. 9x? +18x +829. 18x² + 3x - 1031. 15x2+2x–833. 24x² - 41x +1235. 2x² + 3x - 9037. 203x²+x-5/339. 63x? - 47x+5/322. XP-3/5x-2024. X-212x-3026. XP-32x-10528. 6x² + 17x + 1230. 2x2 + 11x -2132. 21x² + 5x - 634. 3x2 - 14x + 836. 5x2 + 2x-31538.7x² + 2/14x+240.5/5x² + 20x +342. 2x² + 3x+244. 15x2 - x -2846. 2x2 - 7x-1548. 6x? - 11x - 3550. 10x? - 9x - 752. {x?-28-954. 21x2–2x+156. x2-17,-41. 3x?+ 10x +8343. 2r?+3/3x+345. 6x?-5x-2147. 5x? - 16x -2149.9x2-3x - 2051. x2–2x+55. Qx2 +16x +10 |
Answer» all equction ka answer chaia Select 1 particularl or different question. I think u thought any fellow can solve send the pic of the solution .ryttt😁 |
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5728. |
11. Ptyalin, an enzyme work in saliva in -(1) Alkaline medium(2) almost neutral medium(3) Acidic medium(4) all media |
Answer» option B |
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5729. |
: Differences between Fertiliser and Manure |
Answer» nice |
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5730. |
Fill in the blanks with suitable relive or emphatic pronounThe three friends cooked the mealTarunrepaired the computerhave baked the cakeThey treatedto ice creamThe monkey scratchedYou must give him the newsCe with correct similies from the box |
Answer» themselveshimselfmyselfthemselvesitselfyourself themselveshimselfmyselfthemselves itselfyourself 1. Themselves2. Himself3. Myself4. Themselves 5. Itself6. Yourself. 1 themselves. 2himself. 3 themselves 4 itself 5 your self themselves himself myself themselves itself yourself themselveshimselfmyselfthemselvesitselfyourself 1. for themselves2.will3. will4. them |
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5731. |
b] Describe alcoholic fermentation and Lactic acid fermentation withschematic representation. |
Answer» Like my answer if you find it useful! |
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5732. |
3. In which food would you find lactic acid bacteria? Mention some oftheir useful applications. |
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5733. |
DELTADate |
Answer» Fleshy fruits are those which have three layers; namely the exocarp, mesocarp and endocarp. |
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5734. |
7. On the basis of the issues raised in this chapter, what changes would youincorporate in your lifestyle in a move towards a sustainable use of our resources? |
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5735. |
Write the differences between:(a) Blood and Lymph(b) Open and Closed system of circulation(c) Systole and Diastole(d) P-wave and T-wave |
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5736. |
Bronchial asthama, if notmanaged properly, caneventually lead to-(a) Heat damage(b) Emphysema(c) Pneumonia(d) Permanent lung damage |
Answer» The answer is option d. |
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5737. |
wht koud happenbseak doomPlasma menmane neptuses ss |
Answer» If the plasma membrane ruptures or breakdown then the cell will not be able to exchange material from its surrounding by diffusion or osmosis. Thereafter the protoplasmic material will be disappeared and the cell will die. |
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5738. |
0. One side of a rhombus is 20 cm long and one of its diagonals measures24 cm. The area of the rhombus is |
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5739. |
Write the Caytonealian theory on originof angiosperms. |
Answer» The Caytonialean Theory: This theory was proposed by H. Hamshaw Thomas on the basis of comparative studies of modern flowering plants, with those of Caytoniales, which are certain fossil plants of the middle Jurassic. This theory was later supported by Stebbins. Caytonia had a wide distribution and it has been described from Triassic to Cretaceous localities in most of today’s Northern Hemisphere. It is believed to have been a small tree, based on association of foliage with woody axis. Caytoniales, which seems to have a few angiosperm-like features, are looked upon as the possible ancestors of angiosperms. |
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5740. |
iaisdausedby.bybaren(e) Common salt has been used to presersteur() The food material which is preserveG) As a result of gitrogen cycle, the percencycle, the percentage of nitrogen in the atmosphere remCenstanthort Answer Type Questions4 How do viruses differ from other micro-orgsuch as bacteria?o viruses differ from othnf microrganisms. 2.3 |
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5741. |
08. Why blood is called a connective tissue?OR |
Answer» It is called so because it helps to transport different types of substances dissolved in it. Therefore forming a connecting link between the body parts. Hence a connecting tissue. |
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5742. |
What is Autotrophic nutrition? Give one example. |
Answer» They prepare their own food by utilizing the solarenergy,water, and carbon dioxide by the process of photosynthesis. This results in forming of glucose. Plants like blue-green algae and cyanobacteria could be considered as the example of autotrophic nutrition. |
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5743. |
) Define geotropism. Give one example of geotropism. |
Answer» The growth of the parts of plants in response to the force of gravity. The upward growth of plant shoots is an instance of negative geotropism; the downward growth of roots is positive geotropism. |
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5744. |
14. What is point mutation? Give one example. |
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5745. |
How is connective tissue classified? Explairn. |
Answer» Loose Connective Tissue The areolar tissue and the adipose tissue are classified under the loose connective tissue. This tissue has cells and fibres that are loosely arranged in the semifluid ground substance. The areolar tissue has fibrous extracellular molecules and a number of different cell types. These include a ground substance, the matrix, fibroblasts, mast cells, and macrophages. Dense Connective Tissue In the dense connective tissue, the fibres and fibroblasts are compactly packed. The dense connective tissue can be further classified into dense regular and dense irregular connective tissue, depending on the regularity/irregularity of the collagen fibres. Specialized Connective Tissue The three specialized connective tissues are Blood, bones, and cartilage. Blood Blood is a fluid connective tissue. It consists of a liquid matrix called as the plasma, in which blood cells are present. It travels all around the body in blood vessels. So blood helps in the transport of gases, nutrients, hormones as well as the elimination of the waste materials.There are three types of blood cells that are found in the plasma. They are the Red blood cells (RBC) or Erythrocytes; White blood cells or Leucocytes (WBC) and Thrombocytes or Blood Platelets. The RBCs and the WBC’s are the living components of the blood.The RBCs have a pigment called hemoglobin, due to which blood appears red in color. The WBCs help in protecting the body by attacking any foreign body that enters into the body, while the blood platelets are responsible for clotting of blood. Bones Bones are the hard connective tissue. They give support and framework to the body. They protect the internal organs and the muscle tissue attached to the bones helps in movement. The bone tissue is strong and non-flexible. The cells are embedded inside a hard matrix, which is made up of proteins, calcium and phosphorous. And bones are rich in calcium salts and collagen fibres, giving them the strength. Cartilage Cartilage is another type of connective tissue that has a solid matrix. It contains proteins and sugars. The cartilage tissue has widely spaced cells. Cartilage is also an important connective tissue as it helps in smoothening the bone surfaces at the joints. Cartilage is also present in the trachea, nose, ears, and larynx. |
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5746. |
what is the visible product of photosynthesis |
Answer» starch |
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5747. |
3.Which of the following type of connective tissuedoes not contain fibres?(1) Bone(2) Cartilage(3) Blood(4) Tendon |
Answer» 1) Bone is the correct answer the correct answer is fiber sry the correct answer is blood option'3' is the right answer blood is correct answer Blood is the correct answer. blood doesn't contain fibers blood is the correct answer |
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5748. |
Fluid connective tissue: |
Answer» Bloodandlymphare fluid connective tissues. Cells circulate in a liquid extracellular matrix. The formed elements circulating inbloodare all derived fromhematopoieticstem cells located in bone marrow. |
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5749. |
1.Why are living organisms classified? |
Answer» thank you so much Madhulika |
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5750. |
Why are living organisms classified? |
Answer» | |