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351.

Mark the incorrect statement w.r.t. demonstratedA. Microbes exhibit the metabolismB. It is the property of all living formsC. The metabolic reactions can be demonstrated in vitroD. It is not a defining feature of life forms

Answer» Correct Answer - D
352.

Who published the International Directory of Botanical Gardens?A. Carolus Linnaeus, 1990B. Bentham and Hooker, 1981C. Henderson, 1983D. John Ray, 1985

Answer» Correct Answer - C
353.

Define a species

Answer» Species is defined as a group of organisms capable of interbreeding and producing fertile offsprings.
354.

Define taxonomy.

Answer» The branch of science which deals with the study of principles and procedures of classification is known as 'Taxonomy'.
355.

Who developed the system of binomial nomenclature?

Answer» Carolus Linnaeus (1751) developed a system of naming of organisms known as binomial nomenclature.
356.

What do you understand by taxonomic hierarchy?

Answer» The serialwise or orderly arrangement of taxonomic categories or rank is known as taxonomic hierarchy.
357.

What do you mean by nomenclature?

Answer» The process of naming the living organisms which are identified is known nomenclature.
358.

What do you mean by biodiversity?

Answer» Biodiversity is the degree of variation of life forms on earth.
359.

Assertion: The sum total of all the chemical reaction occurring in our body is metabolism. Reason: All plants animals and fungi exhibit metabolism but microbes do not show metabolism.A. If both Assertion and reason are true and the reason is the correct explanation o the assertion.B. if both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. if both assertion and reason are false.

Answer» Correct Answer - C
The sum total of all the chemical reaction occurring in our body is metabolism.
* All plant, animals, fungi ad microbes exhibit metabolism.
360.

Give an instance to show that plants respond to stimfull.

Answer» Plants are sensitive to light, water, gravity, touch etc., like external stimuli as sunflower orients towards the sun in day time, also roots grow towards gravity, i.e., underground.
361.

What is metabolism?

Answer» Metabolism is defined as the sum total of all chemical reactions that occur in an organism.
362.

Metabolism comprisesA. Digestion of foodB. Elomintion of wastesC. Exchange of gasesD. Various energy exchanges in cell

Answer» Correct Answer - d
363.

Animals that rely on the heat from the environment , rather than of metabolism, to raise their body temperature are, in the strict sense, calledA. EctothermicB. poikilothermicC. HomeothermicD. Endothermic

Answer» Correct Answer - a
364.

Metabolism isA. Release of energyB. Gain of energyC. Relase or gain of energyD. Catabolism of a reaction

Answer» Correct Answer - C
365.

Animals spending winter in dormant conditons is referred as underA. HibernationB. AestivatonsC. MimocryD. camouflage

Answer» Correct Answer - a
366.

A plant may have different names in different regions or the country of world. How do botanists solve this problem?

Answer» There is a need to standardise the naming of living organisms such that a particular organism is known by the same all over the world. Botanists have solved this problem by setting International Code for Botanical Nomenclature (ICBN).
Scientific naming ensures that each organism has only name in any part of the world. ICBN ensures that such name has not been used for any other organism.
Each name has two components the generic name and the specific epithet. This system of naming is called bionomial nomenclature given by Carolus Linnaeus. e.g., mango has the scientific name Mangifera indica and potato is known as Solanum tuberosum.
367.

Specific epithet isA. First word in the scientific name of a species.B. Second name in the scientific name of a species.C. Both A and BD. None of these

Answer» Correct Answer - B
Specific epithet is second name in the scientific name of a species.
368.

Herbarium consists ofA. Collection of living plantsB. Collection of plant and animals specimens preserved in the containersC. Preserved insects in boxes after collecting killing and pinningD. Herbarium sheets carrying dried, pressed and preserved plant specimens on them

Answer» Correct Answer - D
369.

Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation ofA. MonographsB. FloraC. Both a & bD. None of these

Answer» Correct Answer - C
370.

Assertion. These are only seven obligate categories in taxnomy. Reason. Others are called intermediate categories.A. If both A and R are true and R is the correct explanation of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is false.D. If both A and R are false.

Answer» Correct Answer - B
371.

Chordata includesA. Fishes, birdsB. Mammals, reptilesC. Aves, reptiliaD. All of these

Answer» Correct Answer - D
372.

Siphonogama includesA. Bryophyta and thallophytaB. Pteridophyta and BryophytaC. Gymnosperm and angiospermD. Thallophyta and gymnosperm

Answer» Correct Answer - C
373.

The word Cryptogamia was coined by :-A. TheophrastusB. LinnaeusC. Benthum & HookerD. John-Ray

Answer» Correct Answer - B
374.

Which of the following book was written by Theophrastus for the first time ?A. Enquiry into plantsB. Causes of PlantsC. Historia plantarumD. All the above

Answer» Correct Answer - D
375.

Who gave importance of serology in taxonomy?A. WillisB. Karl MenzC. HutchinsonD. Whittaker

Answer» Correct Answer - B
376.

Serology can be used to know the phylogenetic relationship ofA. PlantsB. AnimalsC. Both the aboveD. Dinosaurs

Answer» Correct Answer - C
377.

Pedology is science ofA. earthB. soilC. diseasesD. pollution

Answer» Correct Answer - B
(b) Pedology is the study of soil and soil properties.
378.

Homeostasis isA. tendency to change with change in environmentB. tendency to resist changeC. disturbance in regulatory controlD. plants and animals extracts used in homeopathy

Answer» Correct Answer - B
(b) Homeostasis (Gr. Homeos= similar, stasis = standing) is the tendency of maintaining a relatively stable internal physiological environment in an organism, or steady-state equilibrium in a population or ecosysterm. It is carried out by regulatory mechanisms which coordinate internal functions such as providing nutrients to cells and transporting substances.
379.

Improvement of human race through improvement of human environment isA. EuthenicsB. EugenicsC. EuphenicsD. Ethnology

Answer» Correct Answer - B
(b) Eugenics refers to improvement of human race by modifying fertility or employing the hereditary principles.
380.

first experiment related to the method of hydroponis were done byA. KnopB. HillC. ArnonD. sachs

Answer» Correct Answer - d
381.

which branch study about remains of plants lifeA. PalaentologyB. PalaeobotanyC. EugenicsD. palynology

Answer» Correct Answer - b
382.

Strength of a cellulose microfibril is due ofA. Strong numerous covalent bonds amongst different moleculesB. Numerous weak hydrogen bonds amongst adjacent cellulose moleculesC. Numerous strong ionic amongst cellulose moleculesD. All the above

Answer» Correct Answer - B
383.

Chemical signals to brain by receptor molecules establishA. Weak bondsB. Strong bondsC. Permanent bondsD. Both B and C

Answer» Correct Answer - A
384.

Receptor molecules transmitting signals to brain separateA. After initiation of responseB. Before initiation of responseC. Before completion of responseD. After completion of response.

Answer» Correct Answer - B
385.

Some plants having pleasant ordour and attactive colours forA. HydrophilyB. AnemophillyC. EntomophilyD. None of these

Answer» Correct Answer - c
386.

Hydrogen bonds amongst water molecules have bestowed the property ofA. Liquid with ability to flowB. High viscosity, high specific heat and high heat of vaporisationC. High boiling point and low freezing pointD. All the above

Answer» Correct Answer - D
387.

which of the following chemical characteristics is not common to all living beingsA. Type of protein present in the bodyB. Similar triple code for amino acidsC. Energy is stored by high phosphate bondsD. Ribosomes are the sites of protein synthesis

Answer» Correct Answer - a
388.

Water is reagent inA. RespirationB. PhotosynthesisC. Nerve conductionD. Glycogenesis

Answer» Correct Answer - B
389.

Water remains liquid betweenA. `4^(@)` to `90^(@)C`B. `-4^(@)C " to " 100^(@)C`C. `-10^(@)C " to " 110^(@)`D. `60^(@) " to " 160^(@)C`

Answer» Correct Answer - A
390.

In living system water is involved as a chemical inA. Photosynthesis and respirationB. Synthesis of polymersC. Hydrolysis of bicohemicalsD. All the above

Answer» Correct Answer - D
391.

Life originated inA. LithosphereB. HydrosphereC. AtmosphereD. All the above

Answer» Correct Answer - B
392.

Percentage of water in the body of a living being like human isA. `10 - 20 %`B. `50%`C. `70 - 80 %`D. `90 - 95%`

Answer» Correct Answer - C
393.

Water hasA. High surface tension and low thermal conductivityB. Low surface tension and low thermalC. High surface tension and high thermal conductivityD. High surface tension and low thermal conductivity

Answer» Correct Answer - C
394.

In contact with water, phospholipids formA. Rounded aggregatesB. MonolayerC. BilayerD. All the above

Answer» Correct Answer - C
395.

The living organisms can be undexceptionally distinguished from the non - living things on the basis of their ability forA. Responsivensess to touchB. Interaction with the environment and progressive evolutionC. ReproductionD. Growth and movement

Answer» Correct Answer - c
Reproductiom capacity found only in living being. There are several factors and processes which differentiate living beings with non living beings like reprpduction, respiration, growth etc. but among them reproduction it the only difference which differentiate without any execption living being with non living beings.
396.

Related genera belong to the sameA. speciesB. varietyC. FamilyD. breed.

Answer» Correct Answer - C
Family is a taxomic category which contanis one or more related gerera. All the gerera of a family have some common feaures and they are sparable from gerera of a related family by important charcteristic differencs.
397.

Osmotroph isA. PhagotrophB. ChemoautotrophC. SaprotrophD. Autoroph

Answer» Correct Answer - A
398.

Trinomical nomenclature is used in case ofA. Sympatric speciesB. Allochronic speciesC. Polytypic speciesD. Sibling species

Answer» Correct Answer - C
399.

Which one is a fertile hybrid ?A. MuleB. HinnyC. Both A and BD. Liger.

Answer» Correct Answer - A
400.

Biospecies is based onA. Cytological traitsB. Reproductive isolationC. Genetic isolationD. Both B and C

Answer» Correct Answer - D