22339 + Interview Questions in Biology in Class 11 Page 344 InterviewSolution

17151.	Question : Holdfast, stipe and frond constitute the plant body in case of
Answer» RHODOPHYCEAE Chlorophyceae Phaeophyceae All of the above Answer :C

Discussion

17152.	Question : HMM
Answer» SOLUTION : HEAVY MEROMYOSIN

Discussion

17153.	Question : HLA complex is associated with
Answer» 9TH CHROMOSOME X-chromosome 11th chromosome 6th chromosome Answer :D

Discussion

17154.	Question :HIV is a type of
Answer» adeno VIRUS Retrovirus Adeno ASSOCIATED virus Rhabdo virus ANSWER :B

Discussion

17155.	Question : Histone proteins are seen in the DNA of _____
Answer» Pseudokaryotes Prokaryotes Mesokaryotes EUKARYOTES Solution :Eukaryotes

Discussion

17156.	Question : Histone proteins are seen in the DNA of __________.
Answer» Pscudokaryotes Prokaryotes Mesokaryotes Eukaryotes Answer :D

Discussion

17157.	Question : Histone octamer acts as the core of the nucleo some. The type of histone which is not a component of octamer?
Answer» `H_2A` `H_2B` `H_4` `H_1 ` ANSWER :D

Discussion

17158.	Question : Histogens can be observed in
Answer» SECONDARY MERISTEM LATERAL meristem APICAL meristem Intercalary meristem Answer :C

Discussion

17159.	Question : Histogen theory was proposed by
Answer» SCHMIDT Nageli Strasburger Hanstein Answer :D

Discussion

17160.	Question : Histogen theory of Stem. Explain.
Answer» Solution :Histogen theory is prooposed by Hanstein (1868) and supported by Strassburgur. The shoot apex comprises three distinct ZONES. 1. Dermatogen : It is a outermost LAYER. It gives rise to epidermis. 2. PERIBLEM : It is a middle layer. It gives rise to cortex. 3. Plerome : It is INNERMOST layer. It gives rise to stele.

Discussion

17161.	Question : Histamine, serotonin and heparin are secreted by
Answer» monocytes neutrophils eosinophils basophils Answer :D

Discussion

17162.	Question : Hirudinaria is(A) Locust(B) Blood sucking leech(C) Roundworm(D) Hookworm
Answer» Locust Blood SUCKING leech Roundworm Hookworm ANSWER :B

Discussion

17163.	Question : Hip joint, knee joint, ankle joint, elbow joint.
Answer» ANSWER :HIP JOINT

Discussion

17164.	Question : Hip joint is an example of __joint.
Answer» ANSWER :BALL and SOCKET JOINT

Discussion

17165.	Question : Hinge joint occurs between:
Answer» HUMERUS and radio-ulna Femur and PELVIC GIRDLE Humerus and PECTORAL girdle SKULL and atlas Solution :Humerus and radio-ulna

Discussion

17166.	Question : Hinge joint is present between
Answer» femus and ulna humerus and ulna femur and PECTORAL GIRDLE femur and PELVIC girdle

Discussion

17167.	Question : Hinge joint is found at the a
Answer» hip knee shoulder all

Discussion

17168.	Question : Hilum is found in
Answer» embryo seed coat radicle chalaza Answer :B

Discussion

17169.	Question : Hill reaction is not the true form of light reaction.
Answer» SOLUTION :Hill reaction is not the actual LIGHT reaction due to the REASON that reduction of ferricyanide to FERROCYANIDE is an evidence of light reaction exhibited by Robin Hill (1937).

Discussion

17170.	Question : Highly durable and commercial valuable wood of the following is
Answer» SPRING WOOD HEART wood Late wood Sapwood Answer :B

Discussion

17171.	Question : Highly thickened wall and very narrow lumen are characteristic features of
Answer» SCLEREIDS Fibres Collenchyma Parenchyma Answer :B

Discussion

17172.	Question : Higher the metabolic rate of the animal, higher is its ______
Answer» SOLUTION :HEART BEAT RATE or PULSE rate

Discussion

17173.	Question : Highest concentration of salt is found in
Answer» RENAL cortex renal medulla renal pelvis glomerulus

Discussion

17174.	Question :High prolactin secretion during lactation supresses LH secretion and ........
Answer» SOLUTION :(OVULATION)

Discussion

17175.	Question : High frequency sound waves vibrate the basilar membrane
Answer» NEAR the helicotrema near the oval WINDOW in the middle of cochlea from oval window to helicotrema Solution :HIGH FREQUENCY sound waves VIBRATE the basilar membrane near the oval window.

Discussion

17176.	Question : High carboxyhaemoglobin content indicates that the patient has inhaled excess of
Answer» A) CARBON disulphide B) CHLOROFORM C) carbon dioxide D) carbon MONOXIDE Solution :carbon monoxide

Discussion

17177.	Question : High blood pressure leads to heart diseases and also affects vital organs like .......... and .........
Answer» ANSWER :BRAIN, KIDNEY

Discussion

17178.	Question : High carbon dioxide concentrations will not cause stomata to open
Answer» ANSWER :1

Discussion

17179.	Question : High blood pressure is
Answer» 120/80 MM of HG 140/80 mm of Hg 140 / 90 mm of Hg 140/90 mm ofHg orhigher ANSWER :D

Discussion

17180.	Question : Hiccough (hiccup) is due to activity of
Answer» INTERCOSTAL muscles Food in AIR tract Diaphragm Inadequate OXYGEN in environment Solution :Diaphragnm

Discussion

17181.	Question : HGT could have played a major role in evolution of life on earth.
Answer» Solution :In eukaryotic genes, the expressed sequences are called exons are intervening non-coding sequences are called introns. Introns or mobile DNA SEQUENCE can splice themselves out of, as well as into SPECIFIC .target sites. ACTING like mobile transposon-like elements (mediating transfer of genes between organisms). Such transfer is called as HGT- Horizontal Gene Transfer. This COULD have occurred between different lineages of cells and played a major role in the evolution of life on earth.

Discussion

17182.	Question : hexokinase : transferase : : amylase : ……………..
Answer» SOLUTION :HYDROLASE

Discussion

17183.	Question : Heterotrophic eukaryotes, without cell wall are included in
Answer» Monera Fungi ANIMALIA PROTISTA ANSWER :C

Discussion

17184.	Question : Heterotrichy means having
Answer» PROSTRATE and erect filaments Rhizoids and PHOTOSYNTHETIC branches Long and short branches Branches DIFFERENTIATED into NODES and internodes Answer :A

Discussion

17185.	Question : Heterotrichous nature of thallus is found in
Answer» FUNARIA Fritschiella and Ectocmpous Stigeoclonium and Coleochaete All of these ANSWER :D

Discussion

17186.	Question : State whether the following statements are true or false. Heterospory refers to the production of two different kindsof spores, one of which gives rise to male gametophyte andthe other female gametophyte. A. TrueB. False
Answer» ANSWER :1

Discussion

17187.	Question : Heterospory i.e., formation of two types of spores - microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom ?
Answer» Solution :• Heterospory are two different SIZED and of different sex spores produced by sporophyte. • Small spores are known as microspores germinate to give RISE to male and megaspores germinate to give rise to female gametophyte. • Pteridophytes ACT as INTERMEDIATE between bryophytes and gymnosperms in evolution of plants. All bryophytes are homosporous and all gymnosperms are heterosporous. In this condition cross fertilization takes place due to Dimorphism.

Discussion

17188.	Question : Heterospory is originated in …………………. .
Answer» GYMNOSPERMS PTERIDOPHYTES Bryophytes ALGAE ANSWER :B

Discussion

17189.	Question : Heterospory is first noticed in
Answer» gymnosperm pteridophytes gymnosperm ferns Answer :(B)

Discussion

17190.	Question : Heterospory is a development towards seed habit. Do you agree ?
Answer» Solution :Yes. Production of two types of spores by a plant is called heterospory . Eg: Selaginella. 2. Large spores are called mesaspores and small spores are called microspores. Megaspore `to` Female gametophytes `to` ARCHEGONIA `to`egg. Microspore `to` male gemetophyte `to` Antheridia `to` Antherozoids. 3. The two gemetophytes REMAIN protected inside the respective spores in the sporophytic phase. 4. Microspores are dispersed by wind and reach the Megaspore. The antherozoid fuses with the egg to formzygote. 5. THUS the gemetophytic generation is completed in the sporophyte plant itself. Only after ZYGOTE formation the female GAMETOPHYTE is shed from the sporophyte. 6. This is a basic requisite for seed habit.

Discussion

17191.	Question : Heterospory and origin of seed habit was noticed for the first time in
Answer» Isoetes Lycopodium Selaginella Dryopteris Solution :HETEROSPORY and origin of SEED HABIT was NOTICED for the time in Selaginella/heterosporous pteridophyte.

Discussion

17192.	Question : Heterosporous pteridophyte is
Answer» Salvinia Lycopodium Pteris Funaria ANSWER :A

Discussion

17193.	Question : Heterosporous aquatic ferns are
Answer» LYCOPODIUM, Selaginella Equisetum, Selaginella Azolla, Salvinia Dryopteris, Pteris Answer :C

Discussion

17194.	Question : Heterophylly is mainly seen in ……………………
Answer» XEROPHYTES mesophytes lithophytes HYDROPHYTES Solution :hydrophytes

Discussion

17195.	Question : Heterocyst is found in
Answer» Nostoc chrysophytes slime moulds dinoflagellates

Discussion

17196.	Question : Hetero-chromatin is
Answer» Darkly STAINED part of CHROMATIN LIGHTLY stained part of cristae Lightly stained part of grana Scattered LOBES in cytoplasm Answer :A

Discussion

17197.	Question : Heterochromatin differs from euchromatin in
Answer» Chemical NATURE Degree of staining Activeness of genes (2) and (3) Answer :D

Discussion

17198.	Question : Heritable changes in or more characteristics of a population of ___ from one generation to other is called evolution.
Answer» Individuals species genus organisms Answer :B

Discussion

17199.	Question : How do herbivores digest cellulose?
Answer» Solution :Human cannot digest cellulose but herbivores can digest them with the help of bacteria PRESENT in the gut which produces enzymes CELLULASE. This is an EXAMPLE of MUTUALISM.

Discussion

17200.	Question : Herat is called double pump.
Answer» Solution :Blood has to pass through LUNGS to enter into LEFT section from right SECTIONS of heart. So heart is called as double PUMP. Right side sections of heart push blood into lungs and left side setions push blood towards the whole body.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Holdfast, stipe and frond constitute the plant body in case of

Question : HMM

Question : HLA complex is associated with

Question :HIV is a type of

Question : Histone proteins are seen in the DNA of _____

Question : Histone proteins are seen in the DNA of __________.

Question : Histone octamer acts as the core of the nucleo some. The type of histone which is not a component of octamer?

Question : Histogens can be observed in

Question : Histogen theory was proposed by

Question : Histogen theory of Stem. Explain.

Question : Histamine, serotonin and heparin are secreted by

Question : Hirudinaria is(A) Locust(B) Blood sucking leech(C) Roundworm(D) Hookworm

Question : Hip joint, knee joint, ankle joint, elbow joint.

Question : Hip joint is an example of __joint.

Question : Hinge joint occurs between:

Question : Hinge joint is present between

Question : Hinge joint is found at the a

Question : Hilum is found in

Question : Hill reaction is not the true form of light reaction.

Question : Highly durable and commercial valuable wood of the following is

Question : Highly thickened wall and very narrow lumen are characteristic features of

Question : Higher the metabolic rate of the animal, higher is its ______

Question : Highest concentration of salt is found in

Question :High prolactin secretion during lactation supresses LH secretion and ........

Question : High frequency sound waves vibrate the basilar membrane

Question : High carboxyhaemoglobin content indicates that the patient has inhaled excess of

Question : High blood pressure leads to heart diseases and also affects vital organs like .......... and .........

Question : High carbon dioxide concentrations will not cause stomata to open

Question : High blood pressure is

Question : Hiccough (hiccup) is due to activity of

Question : HGT could have played a major role in evolution of life on earth.

Question : hexokinase : transferase : : amylase : ……………..

Question : Heterotrophic eukaryotes, without cell wall are included in

Question : Heterotrichy means having

Question : Heterotrichous nature of thallus is found in

Question : State whether the following statements are true or false. Heterospory refers to the production of two different kindsof spores, one of which gives rise to male gametophyte andthe other female gametophyte. A. TrueB. False

Question : Heterospory i.e., formation of two types of spores - microspores and megaspores is a characteristic feature in the life cycle of a few members of pteridophytes and all spermatophytes. Do you think heterospory has some evolutionary significance in plant kingdom ?

Question : Heterospory is originated in …………………. .

Question : Heterospory is first noticed in

Question : Heterospory is a development towards seed habit. Do you agree ?

Question : Heterospory and origin of seed habit was noticed for the first time in

Question : Heterosporous pteridophyte is

Question : Heterosporous aquatic ferns are

Question : Heterophylly is mainly seen in ……………………

Question : Heterocyst is found in

Question : Hetero-chromatin is

Question : Heterochromatin differs from euchromatin in

Question : Heritable changes in or more characteristics of a population of ___ from one generation to other is called evolution.

Question : How do herbivores digest cellulose?

Question : Herat is called double pump.