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5401.

i) Which substance adds colour to urine?

Answer»

Urochrome pigment is diluted and concentrated to urine

urochrome is correct answer

urochrome pigment is diluted and concentrated to urine

urochrome is a substance that adds colour to urine

Urobilinorurochromeis the chemical primarily responsible for the yellow color of urine.

urochrome is the right answer

urochrome pigment adds colour to urine

Urobilinorurochromeis the chemical primarily responsible for the yellow color of urine. It is a linear tetrapyrrole compound that, along with the related compoundurobilinogen, are degradation products of the cyclic tetrapyrroleheme.

Urochrome adds colour to urine .

urochrome is the right ans...

urobilian or unochrome is the chemical primarily responsible for the yellow color of urine.

urochrome gives colour to urine which comes from dividing biliverdin

substance urine colour urochrome pigment is diluted and concerrated to urine this is the right answer please like my answer

urochrome is the substance which makes coloured to urine.

5402.

. Discuss the mechanism of urine formation in humans.

Answer»

The nephrons of the kidneys process blood and create urine through a process of filtration, reabsorption, and secretion. Urine is about 95% water and 5% waste products. Nitrogenous wastes excreted in urine include urea, creatinine, ammonia, and uric acid. Ions such as sodium, potassium, hydrogen, and calcium are also excreted.

5403.

which hormone is secret during pregnancy with urine

Answer»

Human chorionic gonadotropin hormone (hCG).This hormone is only produced during pregnancy with urine.

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5404.

Give reasons:(f) Wind acts as a pollinating agent. )(i) Variation is essential and beneficial to a species.iii) Use of condoms prevent pregnancy

Answer»

1).Wind act as a pollinating agent because pollen grains are very light and wind can carry them away. The wind carriers away pollen from anther and transfer them on stigma of flowers and hence help in pollination.

2) Variation is beneficial for the existence of the species because they play an important role in the adaption to survive in the changing conditions. Variation is not essential for an individual because it doesn't help in the evolution of a human being or a person..

Condoms prevent entry of sperms into the vagina hence it prevents pregnancy

5405.

The bulb of thermometer is kept above the surface of water while determining the boiling pointof water", Give reason.25.ren Which one

Answer»

A pot of boiling water is actually slightly higher than the boiling point. I know, that doesn't make sense. Let me explain. The boiling point is defined as the temperature at which the vapour pressure is exactly equal to the external pressure. The “Normal Boiling Point” is the boiling point at exactly 1 atm of pressure. If you look closely at a pot of. Piling water you'll notice bubbles rising from the bottom of the pot. Those bubbles are pure water vapour and since they have pushed back the water that is on top of themselves and the air over the water, they must have had a pressure greater than the external pressure to do that. Those bubbles will stop expanding when the pressure just exactly equals the boiling point and will stay there as they finish rising in the pot. This, the steam just above the water will be a better measure of the boiling point because it will not yet have had a chance to cool down.

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5406.

Why is the cell called thestructural and functional unit oflife? mai reatome biale a

Answer»

Cell is called structural and fundamental unit of life because body of all the organisms is made up of cells. It is functional unit of life because all the functions of body (physiological, biochemical. genetic and other metabolic functions) are carried out by cells.

all body functions is prepared by cell

cell is called the structural and functional unit of life because all living organisms is made up of cell and cell perform various functions of living organisms

the cell called the structural and functional unit of life because every organs made made up different cell and the same work who organs they combine and bring new organs that's why this is call structure and function unit of life

5407.

8.Why is it necessary to match the blood test reports before marriage?

Answer»

It is not necessary but it is important to know the ABO & Rh blood group of the partners. This is so because in case a Rh negative female marries a Rh positive male, there is a possibility that the baby might be Rh positive.

This situation can lead to Rh isoimmunisation, i.e. during development in the womb or child birth, if the baby's blood enters the mother, it will induce the production of antibodies in the mother as the baby's Rh positive blood is foreign to the Rh negative mother's immune system. These antibodies in the mother can then cross across the placenta and enter the baby's blood leading to a reaction that destroys the baby's Rh positive red blood cells leading to anaemia, jaundice, etc. In case the blood group is known in advance, the doctor takes due precaution during pregnancy to minimise the possibility of this reaction occurring.

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5408.

Show the break down of glucose by 3 pathways with a help of a flow chart ?

Answer»
5409.

21. Explain with the help of flow chart "What determines the sex of a child genetically

Answer»
5410.

Explain the process of photosynthesis in with the help of a flow chart

Answer»

Photosynthesis is the process that happens in every autotrophic organisms like green plants, they use light energy from the sun to make sugar and oxygen gas from CO and waterNotes:Carbon dioxide and oxygen enter and exit the plant leaves through stomata.

The chlorophyll in the chloroplasts of the leaf cells adsorbs energy from sunlight

Chlorophyll and other carotenoids transfer light energy

The light reaction produces carbohydrates by using ATP and NADPH

The dark reaction produces sugar from carbon dioxide with the help of ATP and NADPH

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5411.

D. LONG ANSWER TYPE1. Name the different types of androecium found inflowers

Answer»

Different types of androecium found of flowers are :

✯On the basis of Cohesion :

• Monoadelphous: Stamens may be united by means of their filament in one bundle with free anthers.

Eg:-----> China rose, lady's finger.

• Diadelphous : when the filaments are united into two bundles and the anthers remain free.

Eg. -----> bean, gram

• Polyadelphous : When the filaments are united into more than two bundles but anthers are free.

Eg. ----> Lemon, castor.

• Syngenesious: When anthers are united but filaments are free.

Eg. ----> Sunflower

• Synandrous : When anthers as well as filament of stamens are united throughout the whole length.

Eg.----> Members of Cucurbitaceae family

✯ On the basis of length and attachment of stamens :

• Didynamous : 4 stamens , 2 outer small and 2 inner Long.

Eg.---> Ocimum, Salvia

•Tetradynamous: 6 stamens, 2 outer small and 4 Inner long.

Eg. ----> Mustard , Radish

• Heterostemony : Stamens are of different length.

Eg. ----> Cassia.

5412.

ত্রিভুজ types

Answer»

একটি ত্রিভুজ তিনটি প্রান্ত এবং তিনটি শীর্ষে একটি বহুভুজ। এটি জ্যামিতি মৌলিক আকার এক। কোণ A, B, এবং C সহ একটি ত্রিভুজ নির্দেশ করা হয়। ইউক্লিডিয়ান জ্যামিতি কোনও তিনটি পয়েন্ট, যখন অ-কৈলৈখিক, একটি অনন্য ত্রিভুজ এবং একই সাথে, একটি অনন্য সমতল (যেমন একটি দ্বি-মাত্রিক ইউক্লিডান স্থান) নির্ধারণ করে।

5413.

3. Explain different types of fisheries.

Answer»

Game Fisheries

Rod Fisheries for Salmon and Trout: anglers have fished with rod and line in Scotland for hundreds of years. The number of anglers has increased in recent years and the sport continues to grow.

Net Fisheries for Salmon: net Fisheries include the traditional methods of fishing for salmon: net and coble, and fixed engines, such as bag nets and stake nets. Drift-net fishing for salmon off the coast of Scotland was prohibited in 1962, and the ban remains in force. The net fishery has declined in recent years, with the number of nets deployed now only about one-third of that recorded a decade earlier.

Coarse Fisheries

As a result of the widespread distribution and abundance of game fish species, there has been less of a tradition of angling for coarse fish in Scotland than elsewhere in the UK, although the popularity of this branch of the sport is growing.

According to the Scottish Federation for Coarse Anglers, there may be as many as 20,000 people in Scotland who fish for coarse fish, about 1,000 of them specialist anglers who target particular species. The number of coarse anglers is estimated to be increasing at 2-4 per centper year. Permit prices vary, but may cost as little as £10 per day in some places. There is an expanding interest in pike fishing in Scotland, especially by visiting anglers from other parts of the UK. There is also an increasing interest in fishing for cyprinid fishes, particularly carp, tench, rudd and roach. Most species of coarse fish are concentrated in the south west of Scotland, the Central Belt, Loch Lomond and the Perthshire lochs.

There are no weekly or annual close times for fishing for coarse fish in Scotland.

Still Water Fisheries

There are put-and-take fisheries for Rainbow trout throughout Scotland, the fish usually being supplied at catchable size by fish farmers. Prices vary, but a day's fishing can cost as little as £5 to 10. In recent years, many ponds have been created to support these fisheries. There are also numerous examples of lochs containing populations of wild native fish that have been stocked with Rainbow trout.

Recreational Sea Angling

Sea angling takes place right around Scotland’s coasts, and can be a 12 month sport for the very keen and hardy.Our diverse coastline provides many peaceful uncrowded angling areas and safe sheltered waters for those fishing from the shore and by boat. A combination of low equipment start-up costs, low ecological damage and absence of licence fee means it is easily accessible for participants of all ages.VisitScotlandhas lots of information for those looking to explore new places to fish.

Fisheries for Eels

Fishing for eels by any method is now prohibited in Scotland without a licence from Scottish Ministers, under afreshwater fish conservation regulationintroduced in 2009, as the principal measure of theScotland RBD Eel Management Plan.

In the past, fisheries for yellow eels were generally sporadic or peripatetic, principally due to the slow-growth rate of Scottish eels which limits potential for exploitation. Glass eels were also latterly exploited on a small scale chiefly for export to the European aquaculture market, while the last of the known silver eel fisheries closed in 2005.

5414.

Q.5) State the location and function of different types of meristems.

Answer»

Ans :- Themeristemsmark the regions where active cell division and rapid division of cells take place.Meristemsare of threetypesdepending on their location. The root apicalmeristem helps in root elongation.

Intercalary meristem: These occurs between the mature tissues present at the bases of the leaves of grasses.

5415.

Name the enzyme that joints the short pieces in the lagging strand during synthesis of DNA?

Answer»

DNAligaseis a DNA-joining enzyme. If two pieces of DNA have matching ends,ligasecan link them to form a single, unbroken molecule of DNA. In DNA cloning,restriction enzymesand DNAligaseare used to insert genes and other pieces of DNA into plasmids

5416.

How many shoot apical meristems arelikely to be present in a twig of a plantpossessing, 4 branches and 26 leaves.1) 262) 13) 54) 30

Answer»

c is the answer

5417.

In which direction the new strand of DNA synthesised during DNA replication

Answer»

The lagging strand is the strand of nascent DNA whose direction of synthesis is opposite to the direction of the growingreplication fork.

5418.

Recoination af DNAecombinant-DNAtechnontoals used fox cyestriction endo nuclea sesre corifian.seguencei "İth-example.)Modiication of blund ended DNA Ta ligosehon spalymes tailing linkeis andl adaptex)ipenclatuseaset-

Answer»

Inbiologyacloneis a group of individual cells or organisms descended from one progenitor. This means that the members of a clone are genetically identical, because cell replication produces identical daughter cells each time. The use of the wordclonehas been extended to recombinant DNA technology, which has provided scientists with the ability to produce many copies of a single fragment of DNA, such as a gene, creating identical copies thatconstitutea DNA clone. In practice the procedure is carried out by inserting a DNA fragment into a small DNA molecule and then allowing this molecule to replicate inside a simple living cell such as a bacterium. The small replicating molecule is called a DNAvector (carrier). The most commonly used vectors areplasmids (circular DNA molecules that originated frombacteria),viruses, andyeastcells. Plasmids are not a part of the main cellular genome, but they can carry genes that provide the host cell with useful properties, such asdrug resistance, mating ability, and toxin production. They are small enough to be conveniently manipulated experimentally, and, furthermore, they will carry extra DNA that is spliced into them.

5419.

The number of chromosomes in the shoottip cells of a maize plant is 20. Thenumber of chromosomes in themicrospore mother cells of the same plantshall be:1) 202) 103) 404) 15

Answer»

(3)The whole plant body of maize plant including shoot tip cells remains in diploid (2n)condition.hence 2*20=40

5420.

What will be the amount of DNA in a pollen grain if its mother cell has 32 picogram DNA in G2 phase?

Answer»

As at the G2 phase the amount of DNA becomes double of what was present in mother cell so the amount DNA in mother cell is 16pg so in pollen grain after meiosis the amount DNA in each cell is 8pg

5421.

4. How are water and minerals transported in plants?

Answer»
5422.

Q. 17. How are water and minerals transported in plants?

Answer»

In plants, the water and minerals are first absorbed by the roots and then it is absorbed by the two vascular tissues namely xylem & Phloem. This both tissues plays a vital role in the transportation of water and minerals. After absorbing water and minerals, by this tissues then it is transported to all parts of plants such as stem, leaves etc.

5423.

Q.17. How are water and minerals transported in plants?

Answer»

In plants , the water and minerals are first absorbed by the roots and then it is absorbed by the two vascular tissues namely xylem & Phloem . This both tissues plays a vital role in the transportation of water and minerals. After absorbing water and minerals , by this tissues then it is transported to all parts of plants such as stem , leaves etc .

5424.

An anther has 200 pollen mother cells. How many pollemaximum from them?llen grainsare produced963

Answer»

4 pollen grains are produced by 1 pmc200 pollen grains are produced by = 200/4= 50 pmc

5425.

plantsHow are water and minerals transported in plants?How is food transported in plants?

Answer»

water by xylem and food by phloem

Water and phloem are transported by the constituents of vascular bundle. Water is transported by xylem and food is transported by phloem.

5426.

|किसमें अधिकName one indigenous variety ofbee used for commercial production of Honey

Answer»

An indigenous variety of bee used for commercial production of honey is the Indian Hive Bee which is also known as Apis cerana indica which is its scientific name.

5427.

who is considered one feither of immunologyHon weer cells produced and give theirCunetions?

Answer»

Edward Anthony Jenner, is known as the Father of Immunology

cells originate in thebone marrowand mature in thethymus. In the thymus, T cells multiply anddifferentiateintohelper,regulatory, orcytotoxic T cellsor becomememory T cells. They are then sent toperipheraltissuesor circulate in thebloodorlymphatic system. Once stimulated by the appropriateantigen, helper T cells secrete chemical messengers calledcytokines, which stimulate the differentiation of B cells intoplasma cells(antibody-producing cells). Regulatory T cells act to control immune reactions, hence their name. Cytotoxic T cells, which are activated by various cytokines, bind to and kill infected cells andcancer cells.

Function:

As part of the adaptive immune response, they may recognise foreign antigens and can kill infected cells. They may also act as ‘helper’ cells by interacting with B cells, maturing them to become producers of antibodies. Also, T cells may become ‘regulatory’, dampening an immune response at the end of an infection.

5428.

e Jump Startose the correct answers to complete the following sen(a) The skeletal system is made up ofii) bonesii) muscles iv) braini) skin(b) In our body, there arebones.i) 206ii) 201iii) 208iv) 209(c) The skeletal system protects theorgans inour body.i) external ii) skinii) muscular iv) intern(d) Bones that form our skull protect thei) heartii) lungsiii) brainiv) spin

Answer»

a. bonesb. 206c. internald.brain

a (ii) b (i) c (iv) d (iii)

5429.

4. Which one of the folllowing is the correct statementabout the respective animal(s)?(a) Donkey and horse should be considered onesingle species because they can successfullymate and produce an offspring(b) Donkey and horse are two different genuses(c) Mule is a separate species.(d) Mule is neither a donkey nor a horse.

Answer»

c)mule is a seperate speciesit is the offspring of male donkey and female horse

5430.

. Apiculture is the maintenance ofbeehives for the production of honeya. Name the common species of honeybee used in India.b. Suggest any two aspects that areimportant for successful beekeeping.

Answer»

a.

Apicultureisimportantbecause it provides bees with a safe place to work and live. Since bees pollinate many of our food sources, it'simportantto keep the bee population healthy. Additionally,apicultureprovides an environment in which to study bee habitat and behavior.

5431.

C. COMPARE AND CONTRAST Name each type of symbiosis and explainhow the two species are affected.gotit?...

Answer»

they have the same affect on each

Mutualism: both partners benefit. ...

Commensalism: only one species benefits while the other is neither helped nor harmed. ...

Parasitism: One organism (the parasite) gains, while the other (the host) suffers.

5432.

distinguish between fibrous joints and cartilaginous joints

Answer»

Fibrous joints contain fibrous connective tissue and cannot move; fibrous joints include sutures, syndesmoses, and gomphoses.

Cartilaginous joints contain cartilage and allow very little movement; there are two types of cartilaginous joints: synchondroses and symphyses.

5433.

Where are the inflexible joints found in our body?

Answer»

Ans :- Cartilage is a connective tissuefoundin many areasof the bodyincluding:Joints between bones e.g. the elbows, knees and ankles. Endsof theribs. Between the vertebraein thespine.

5434.

here are the flexible joints found in our bo

Answer»

Some of these joints allow our bones to move a lot.These joints are calledflexible joints. Flexible joints allowa lot of movement. Elbows,wrists,kneesandanklesareflexible joints.Theshoulderis the most flexible joint in the body.

5435.

Give an example of characteristics being used to determine how close two species are in evolutionary terms.Also, Explain me the question in simple language

Answer»

Different organisms with common ancestry in the past, are more likely to have similar characteristics due to inheritance. These similar characteristics are used to determine evolutionary relationships. Basic structure of Forelimbs in human and birds is one such example of a characteristic which shows closeness of two species in evolutionary terms. The forelimbs in both the species, have similar bones structure and similar origin, but, over period of time, spanning generations, they have been developed to perform different suitable functions as per the need. Such organs that have similar basic structure but perform different functions are called homologous organs. These are used to find out evolutionary relationships.

5436.

Explain what allele frequencymeans in terms of genotypes

Answer»

Allele frequencyis a measure of the relativefrequencyof analleleon a genetic locus in a population. Usually it is expressed as a proportion or a percentage. In population genetics,allele frequenciesshow the genetic diversity of a species population or equivalently the richness of itsgenepool.

5437.

2. Differentiate between the following -(a) Dominance and Recessive(b) Homozygous and Heterozygous(c) Monohybrid and Dihybrid.

Answer»
5438.

Classification of Synovial Joints

Answer»

Thesix types of synovial jointsare the pivot, hinge, saddle, plane, condyloid, and ball-and-socket joints.

5439.

What is Homozygous Dominant and heterozygous dominant in simple language ?

Answer»

Ans :- Homozygous dominant :- An organism can behomozygous dominant, if it carries two copies of the samedominantallele, orhomozygous recessive, if it carries two copies of the same recessive allele.Heterozygous means that an organism has two different alleles of a gene. People with CF arehomozygousrecessive.

Heterozygous dominant :- An organism can be homozygous dominant, if it carries two copies of the samedominantallele, or homozygous recessive, if it carries two copies of the same recessive allele.Heterozygous means that an organism has two different alleles of a gene.

5440.

define allele?write the difference between homozygous allele and heterozygous allele.

Answer»

each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome

Homozygous means that both copies of a gene or locus match while heterozygous means that the copies do not match. Two dominant alleles (AA) or two recessive alleles (aa) are homozygous. One dominant allele and one recessive allele (Aa) is heterozygous.

When it comes to genetic traits, scientists look at genes and the locus where that gene or trait encodes on the chromosome. Since humans possess two copies of each chromosome, they also have two copies of each gene and locus on those chromosomes. Each of these trait-encoding genes (or loci) is called an allele. If the alleles match, the person is homozygous for that trait. If the alleles are different, the person is heterozygous for that trait.

5441.

1. Describe typical synovial joint with a neatlabelled diagram.

Answer»

Where the bones meet to form a synovial joint, the bones' surfaces are covered with a thin layer of strong, smooth articular cartilage. A very thin layer of slippery, viscous joint fluid, called synovial fluid, separates and lubricates the two cartilage-covered bone surfaces.

5442.

10. With the help of neat labelled diagram, explain seminiferous tubule.

Answer»

Seminiferous tubulesare located within the testes, and are the specific location of meiosis, and the subsequent creation of male gametes, namely spermatozoa. The epithelium of thetubuleconsists of a type of sustentacular cells known as Sertoli cells, which are tall, columnar type cells that line thetubule.

5443.

SECTION-A1. Which one of the following species of honeybce is an Italian species?b. Apis florae(1a. Apisdorsatac. Apisceranaindicad. Apismellifera

Answer»

Five importantspecies of honey beesare as follows. The Indian hivebee, Apis cerana indica (Apidae). The European orItalian bee, Apis mellifera (Apidae). Dammerbeeor stinglessbee, Melipona irridipennis (Meliporidae)

option d is your answer

5444.

32. During cleavage(a) Size of early embryo increases(b) Size of early embryo decreases(c) Size of resulting cells increases(d) Size of resulting cells decreases(AIPMT 2

Answer»

(c) Size of resulting cells increases

During cleavage, the cells divide without an increase in mass; that is, one large single-celled zygote divides into multiple smaller cells.

The size of embryo remains the same but the resulting cells increase

5445.

Column-IColumn-I1P) MumpsQ) Athlete's footR) Sleeping sicknessS) Locking of Jawi) Clostridium tetani si) Trypanosoma 2ii) Rubula virus Piv) Trichophyton fungus식I(A) P-v, Q-iii, R-iv, S-ii(C) P-i, Q-iv, R-ii, S-iiMultiple Choice Questions(B) P-i, Q-iv, R-ii, S-ii(DYP-iii, Q-i, R-ii, 5-1h uinuc attarks a bacterial cell?

Answer»

P - iiiQ - ivR - iiS - i

5446.

2.23 The voltage gain A of the circuit shown below13.7 Volts312 ΚΩ100 ΚΩsβ = 10010 ΚΩ

Answer»
5447.

Write the full forms of the following abbreviations:(i) WWF(ii) IUCN(b)

Answer»

WWF- World Wildlife FundIUCN - International Union for Conservation of Nature

Brilliant job

5448.

insect hormones (which are ilowing questionsry Short Answer Type Questions1. What is the special name of the period of life between childhood and adulthood?or dolescentsnd the age up to which it lasts.

Answer»

adolescence is the period of life between childhood and adulthood.

5449.

areas wodnd herp6. Write a note on how forests influence the quality of our airsoil and water resources.

Answer»
5450.

Name the place receiving the highest rainfall in the world.

Answer»

Mawsynram, India. Mawsynram, located in the Meghalaya State in India, is the wettest place in the world, with an annual rainfall of 11,871 millimeters. ...