24277 + Interview Questions in Biology in Class 12 Page 452 InterviewSolution

22551.	Question : Adaptations are the attributes of the organism that enables it to survive and reproduce in its habitat. Give the adaptations of :kangaroo rat in desert
Answer» SOLUTION :Kangaroo rat in North American deserts is capable of meeting all its WATER requirements through its INTERNAL FAT oxidation.

Discussion

22552.	Question : Adaptations are the attributes of the organism that enables it to survive and reproduce in its habitat. Give the adaptations of :Cactus plant in desert
Answer» SOLUTION :Desert plants have athick cutical on their LEAF surfaces and have their stomata ARRANGED in a deep PITS to minimise WATER loss through transpiration

Discussion

22553.	Question : ADA is an enzyme which is deficient in geneticdisorde SCID.What is the fullform of ADA ?
Answer» Adenosinedeoxyaminase ADENOSINE DEAMINASE Aspartatedeaminase ARGININE deaminase ANSWER :B

Discussion

22554.	Question : Adaptation of a species is its:
Answer» ecdysis metamorphosis acquired character hereditary character Answer :D

Discussion

22555.	Question : Adam's Apple represents:
Answer» ARYTENOID cartilage Cricoid cartilage Thyroid cartilage All of the above Answer :C

Discussion

22556.	Question : Adam's apple is a protrusion of cricoid cartilage.
Answer» ANSWER :THYROID CARTILAGE

Discussion

22557.	Question : ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA ?
Answer» ADENOSINE DEOXY aminase Adenosine deaminase Aspartate deaminase Arginine deaminase Answer :B

Discussion

22558.	Question : ADA is an enzyme which is deficient in a genetic disorder SCID, What is the full form of ADA ?(A) Adenosine deoxyaminase(B) Adenosine deaminase(C) Aspartate deaminase(D) Arginine deaminase
Answer» ADENOSINE deoxyaminase Adenosine DEAMINASE Aspartate deaminase ARGININE deaminase SOLUTION :ADA STANDS for Adenosine deaminase.

Discussion

22559.	Question : ADA deficiency is caused by(A) Deletion(B) Translocation(C) Substitution(D) Inversion
Answer» DELETION TRANSLOCATION Substitution Inversion SOLUTION :Deletion

Discussion

22560.	Question : Actually, the Bt toxin protein exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin due to the :-
Answer» ACIDIC PH of the gut ALKALINE pH of the gut Neutral pH of the gut Either acidic or alkaline pH of the gut Answer :B

Discussion

22561.	Question : Actual site of transcription intiation in Lac operon is
Answer» PROMOTER region Operator Inhibitor Structural genes Answer :A

Discussion

22562.	Question : _____acts as second messenger in the cell.
Answer» ANSWER :CAMP

Discussion

22563.	Question : Active transport is transport :
Answer» REQUIRE SPECIAL MEMBRANE proteins Highly selective Requires ATP energy All of the above Answer :D

Discussion

22564.	Question : Active transport is observed during
Answer» ABSORPTION of MINERALS by root hairs Loading of minerals in xylem Loading of SUCROSE in SIEVE elements All the above Answer :D

Discussion

22565.	Question : Activetransportinvoles
Answer» MOVEMENT of moleculesfromlowertohigherconcentration expenditureof energy it ISAN uphill TASK all of the above Answer :D

Discussion

22566.	Question : Tubular secretion takes place in _____ part of nephron.
Answer» Malphigian body Loop of Henle Proximal CONVOLUTED tubule Both B and C Answer :D

Discussion

22567.	Question : Active K^(+) exchange mechanism for opening and closing of stomata was given by
Answer» Khorana Levitt Devlin Sachs Answer :B

Discussion

22568.	Question : Active immunity was stared by :
Answer» EDWARD Jenner L.Pasteur Jones E. Salk A. Flemming Answer :A

Discussion

22569.	Question : Active immunity means:
Answer» RESISTANCE developed before disease Resistance developed after disease Increased heartbreak Increase FLOW of BLOD ANSWER :B

Discussion

22570.	Question : Active immunity develops from..........
Answer» ANTIBODIES WEAKENED GERMS in injection live germs in injection blood TRANSFUSION SOLUTION :antibodies

Discussion

22571.	Question :Activated sludge should have the ability to settle quickly so that it can :
Answer» be RAPIDLY pumped back from sedimentation tank to aeration tank absorb pathogenic BACTERIA PRESENT in waste water while SINKING to the bottom of the settling tank be discarded and anaerobically digested absorb colloidal ORGANIC matter Answer :A

Discussion

22572.	Question : Activated sludge should have the ability to settle quickly so that it can(A) Be rapidly pumped back from sedimentation tank to aeration tank(B) Absorb pathogenic bacteria present in waste water while sinking to the bottom of the settling tank(C) Be discarded and anaerobically digested(D) Absorb colloidal organic matter
Answer» Be rapidly pumped back from sedimentation tank to aeration tank Absorb pathogenic bacteria present in waste WATER while sinking to the bottom of the settling tank Be DISCARDED and ANAEROBICALLY digested Absorb COLLOIDAL organic matter Solution : Activated sludge should have the ability to settle quickly so that it can be rapidly pumped back from sedimentation tank to aeration tank.

Discussion

22573.	Question : Action potentials are generated due to
Answer» out FLUX of `K^(+)` influx of `K^(+)` influx of `NA^(+)` outflux of `Na^(+)` ANSWER :C

Discussion

22574.	Question : Action spectrum of photosynthesis resembles roughly the
Answer» CHOLOROPHYLL a Chlorophyll B Carotene Xanthophyll Answer :A

Discussion

22575.	Question : Actinosteleis not present in
Answer» Psilotum Lycopodium serratum Selaginella Asteroxylon ANSWER :B

Discussion

22576.	Question : Action potentials are generated at maximum frequency by
Answer» BUNDLE of His PURKINJE FIBRES SAN ventricles Answer :C

Discussion

22577.	Question : Actin is a tadpole shaped protein.true or false
Answer» ANSWER :MYOSIN

Discussion

22578.	Question : “Actin binding” sites are found on :-
Answer» ACTIN protein Tropomyosin Myosin Troponin Answer :C

Discussion

22579.	Question :Acrosome reaction of sperm is triggered by
Answer» Capacitation Release of lysin Release of fertilizin Influx of `NA^(+)` ANSWER :C

Discussion

22580.	Question : {:((a),"Cryopreservation", -, "Preservation by " ),(,,,"cooling"),((b), "Protective agents" ,-,"Dimethyl"),(,,, "sulphoxide "),((c),"Organogenesis " , -, "Cell culture "),((d), "Somatic ", -, "Allium sativum" ),(,"embryogenesis",,):}
Answer» ANSWER :(C) ORGANOGENESIS - CELL CULTURE

Discussion

22581.	Question : Acrosome formation in spermatogenesis occurs in which stage ?
Answer» FIRST MEIOTIC division SECOND meiotic division Growth PHAGE Spermiogenesis Answer :D

Discussion

22582.	Question : Acrosome of spermatozoa is formed from :
Answer» Lysosome Mitochondria Ribosomes Golgibodies Answer :D

Discussion

22583.	Question : Acrosome
Answer» SOLUTION :Location : It is a structure located at the anterior part of a sperm. Function : It possesses hyleuronidase protease enzyme that HELPS in entering into OVUM.

Discussion

22584.	Question : Acrosome is reiated to .
Answer» Ovum Sperm Oocyte Spermatocyte Answer :B

Discussion

22585.	Question : Acrosomal reaction of the sperm occurs due to
Answer» Its contact with zona pellucida of the ova Reactions within the uterine environment of the female Reactions within the epididymal environment of the male Androgens prouced in the uterus Solution :One sperm among three glycoprotein works as a consumer and connects with supplementary molecule located on the head surface of sperm cell. The connection of head sperm cell with consumer molecule `ZP_(3)` induces acrosome of sperm cell to release HYDROLYTIC enzyme (spermlycin) The lycin released from sperm possesses following (i) Hyleuronedase that performs hydrolysis of hyleuronic acid of cell of FOLLICLE. (ii) Enzyme entering in corona, induces HYDROYSIS of stroma parts of radiate corona surrounded by secondary oocyte (iii) Zona lycin induces digestion of Acrosin zona pelusida. Above all enzymes dissolve corona radiate and zona pellusida and reach sperm till cytoplasm MEMBRANE of ovum. The effect of above changes occurring in head of sperm is called PROCESS of acrosome.

Discussion

22586.	Question : Acromian process is found in :-
Answer» Humerus Radius Ulna Scapula Answer :D

Discussion

22587.	Question : Acording to accepted concept of hormone action ,if receptor molecules are removed from target organ,then the target organ will
Answer» Not respond to the HORMONE Continue to respind to the hormone without any difference Contuniue to respond to the hormonebut in the OPPOSITE way Continue to respind to the hormone but will require HIGHER concentration Answer :A

Discussion

22588.	Question : Acid rains are caused due to :
Answer» `SO_2` only `CO_2`only `NO_2`and `SO_2` `SO_3` and `CO_2` ANSWER :C

Discussion

22589.	Question : Acid rain is caused by increase in the atmospheric concentration of(A) SO_(2) and NO_(2)(B) SO_(3) and CO(C) CO_(2) and CO(D) O_(3) and dust
Answer» `SO_(2)` and `NO_(2)` `SO_(3) and CO` `CO_(2) and CO` `O_(3)` and DUST ANSWER :A

Discussion

22590.	Question : Achilles tendon is associated with
Answer» GLUTEUS MUSCLE HAMSTRING muscle quadriceps muscle gastrocnemius muscle ANSWER :D

Discussion

22591.	Question : Acetylcholine takes part in
Answer» ENHANCING MEMBRANE permeability synaptic delay none of the above Answer :B

Discussion

22592.	Question : Achiasmatic meiosis has been reported in
Answer» SCORPION fly some grasshoppers scorpion SPECIES of copopoda and lepidotera all of the above Answer :D

Discussion

22593.	Question : Acetyl CoA is produced from pyruvate by:
Answer» OXIDATIVE decarboxylation Oxidative photophosphorylation Oxidative hydrogenation. Oxidative photorespiration Answer :A

Discussion

22594.	Question : Acetic acid is produced by
Answer» ASPERGILLUS niger Lactobacillus bulgaricas Candida lypolytic none of these Answer :D

Discussion

22595.	Question : Acetobacter suboxidans produce
Answer» VITAMIN C vitamin `B_12` vitamin `B_2` vitamin D ANSWER :A

Discussion

22596.	Question : Acetic acid is produced by the use of micro-organismi called
Answer» Aspergillus niger ACETOBACTER acet Clostridium butyline Lactobacillus bulgaricus Solution :1-(ii),2-(IV),3-(iii),4-(iv)

Discussion

22597.	Question : Acetic acid is produced by(A) Aspergillus niger(B) Lactobacillus(C) Acetobacter aceti(D) Clostridium butyricum
Answer» ASPERGILLUS NIGER LACTOBACILLUS ACETOBACTER ACETIC Clostridium butyricum Solution :Acetobacter acetic

Discussion

22598.	Question : Acetabulum is the part of:
Answer» PELVIC girdle Pectoral girdle Fore arm Upper arm Answer :A

Discussion

22599.	Question : Acetabularia used in Hammerling's nucleocytoplamic experiments is
Answer» UNICELLULAR fungus Multicellular fungus Unicellular UNINUCLEATE GREEN alga Unicellular MULTINUCLEATE green alga Answer :C

Discussion

22600.	Question : Accumulation of which substance makes a muscle fatigued ?
Answer» ANSWER :LACTIC ACID

Discussion

Explore topic-wise InterviewSolutions in .

Question : Adaptations are the attributes of the organism that enables it to survive and reproduce in its habitat. Give the adaptations of :kangaroo rat in desert

Question : Adaptations are the attributes of the organism that enables it to survive and reproduce in its habitat. Give the adaptations of :Cactus plant in desert

Question : ADA is an enzyme which is deficient in geneticdisorde SCID.What is the fullform of ADA ?

Question : Adaptation of a species is its:

Question : Adam's Apple represents:

Question : Adam's apple is a protrusion of cricoid cartilage.

Question : ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA ?

Question : ADA is an enzyme which is deficient in a genetic disorder SCID, What is the full form of ADA ?(A) Adenosine deoxyaminase(B) Adenosine deaminase(C) Aspartate deaminase(D) Arginine deaminase

Question : ADA deficiency is caused by(A) Deletion(B) Translocation(C) Substitution(D) Inversion

Question : Actually, the Bt toxin protein exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin due to the :-

Question : Actual site of transcription intiation in Lac operon is

Question : _____acts as second messenger in the cell.

Question : Active transport is transport :

Question : Active transport is observed during

Question : Activetransportinvoles

Question : Tubular secretion takes place in _____ part of nephron.

Question : Active K^(+) exchange mechanism for opening and closing of stomata was given by

Question : Active immunity was stared by :

Question : Active immunity means:

Question : Active immunity develops from..........

Question :Activated sludge should have the ability to settle quickly so that it can :

Question : Action potentials are generated due to

Question : Action spectrum of photosynthesis resembles roughly the

Question : Actinosteleis not present in

Question : Action potentials are generated at maximum frequency by

Question : Actin is a tadpole shaped protein.true or false

Question : “Actin binding” sites are found on :-

Question :Acrosome reaction of sperm is triggered by

Question : {:((a),"Cryopreservation", -, "Preservation by " ),(,,,"cooling"),((b), "Protective agents" ,-,"Dimethyl"),(,,, "sulphoxide "),((c),"Organogenesis " , -, "Cell culture "),((d), "Somatic ", -, "Allium sativum" ),(,"embryogenesis",,):}

Question : Acrosome formation in spermatogenesis occurs in which stage ?

Question : Acrosome of spermatozoa is formed from :

Question : Acrosome

Question : Acrosome is reiated to .

Question : Acrosomal reaction of the sperm occurs due to

Question : Acromian process is found in :-

Question : Acording to accepted concept of hormone action ,if receptor molecules are removed from target organ,then the target organ will

Question : Acid rains are caused due to :

Question : Acid rain is caused by increase in the atmospheric concentration of(A) SO_(2) and NO_(2)(B) SO_(3) and CO(C) CO_(2) and CO(D) O_(3) and dust

Question : Achilles tendon is associated with

Question : Acetylcholine takes part in

Question : Achiasmatic meiosis has been reported in

Question : Acetyl CoA is produced from pyruvate by:

Question : Acetic acid is produced by

Question : Acetobacter suboxidans produce

Question : Acetic acid is produced by the use of micro-organismi called

Question : Acetic acid is produced by(A) Aspergillus niger(B) Lactobacillus(C) Acetobacter aceti(D) Clostridium butyricum

Question : Acetabulum is the part of:

Question : Acetabularia used in Hammerling's nucleocytoplamic experiments is

Question : Accumulation of which substance makes a muscle fatigued ?