24277 + Interview Questions in Biology in Class 12 Page 408 InterviewSolution

20351.	Question : Bombay green banana cultivation is the result of
Answer» MASS selection PURELINE selection Clonal selection NATURAL selection Answer :C

Discussion

20352.	Question : Bombinator threatens its adversary by
Answer» SPRINKLING blood Exposing its belly having orange red PATCHES producing HISSING sound both B and C Answer :d

Discussion

20353.	Question : Bohr effect is related with
Answer» reduced CARBON level in lymph reduced oxygen level in HAEMOGLOBIN oxidised phosphorus level in BLOOD reduced carbon level in blood ANSWER :B

Discussion

20354.	Question : Body wall of Hydra is_______.
Answer» ANSWER :DIPLOBLASTIC,

Discussion

20355.	Question : Body having meshwork of cells, internal cavities lined withfood filtering flagellated cells and indirect development are the characteristic of phylum
Answer» COELENTERATA Porifera Mollusca Protozoa Answer :B

Discussion

20356.	Question :BOD values of different samples of water are given :- Which of the above given sample will have least number of Daphnia ?
Answer» A B C D Solution :DAPHNIA is fresh-water INDICATOR

Discussion

20357.	Question : BOD values of different samples of water are given. Sample A BOD = 5, Sample B BOD = 12 , Sample C BOD = 2, Sample D BOD = 7 Which of the above - given sample will have the least number of Daphnia ?
Answer» A B C D Answer :B

Discussion

20358.	Question : BOD of waste water is estimated by measuring the amount of(A) Total organic matter(B) Biodegradable organic matter(C) Oxygen evolution(D) Oxygen consumption
Answer» Total organic matter Biodegradable organic matter Oxygen evolution Oxygen consumption Solution :BOD of WASTE water is refers to the AMOUNT of oxygen that would be consumed if all the organic matter in ONE liter of water were oxidised by bacteria. The BOD test measures the rate of uptake of oxygen by micro-organisms in a SAMPLE of water.

Discussion

20359.	Question : BOD stands for.......
Answer» Biological OXIDATION DEMAND Biotic Oxygen Deficient Biological Oxygen DEFICIT BIOCHEMICAL Oxidation Deficit Solution : Biological Oxidation Demand

Discussion

20360.	Question : BOD of waste water is estimated by measuring the amount of :
Answer» TOTAL ORGANIC matter biodegradable organic matter oxygen evolution oxygen consumption Answer :D

Discussion

20361.	Question : "BOD is commonly calculated as an index of water pollution."Do you agree with this statement ? Why ?
Answer» Solution :Yes BOD is the measure of organic MATTER present in the water/greater the BOD, more is the POLLUTING POTENTIAL.

Discussion

20362.	Question : BOD means.....(A) amount of oxygen needed for degradation in water(B) it is a measure of the organic matter in a water(C) it is a measure of inorganic matter in soil(D) both (A) and (B)
Answer» amount of oxygen needed for degradation in water it is a MEASURE of the ORGANIC MATTER in a water it is a measure of inorganic matter in SOIL both (A) and (B) SOLUTION : both (A) and (B)

Discussion

20363.	Question : "BOD must be low in fresh water" a . Expand BOD. b. Define BOD. c. Write the importance of BOD.
Answer» Solution :a. BIOLOGICAL OXYGEN Demand. b. This is the amount of oxygen that would be consumed if all the organic matter in one litre of water were oxidised by the microbes. c. BOD is the measure of the orgainic matter present in water because BOD test MEASURES the rate of uptake of oxygen by microbes in a sample water. The GREATER the BOD in SEWAGE , more is its polluting potential.

Discussion

20364.	Question : "BOD is commonly calculated as an index of water pollution." Explain BOD
Answer» SOLUTION :BOD -BIOCHEMICAL OXYGEN DEMAND/Biological oxygen demand.

Discussion

20365.	Question : Elaborate BOD. BOD is an index of water pollution. Explain.
Answer» Solution :The AMOUNT of oxygen required for microbial breakdown of biodegradable ORGANIC matter is called BOD. It is higher in polluted WATER and lesser in DRINKING water. When large amount of sewage water enters into the ponds, rivers, lakes, seas and oceans, it reduces the amount of free oxygen. This depletes the respiratory oxygen levels and causes suffocation for aquatic fauna there by killing aquatic life. BOD is measured to assess the quality of water with respect to the amount of organic load.

Discussion

20366.	Question : BOD in a river water :-
Answer» Remain UNCHANGED when ALGAL bloom occur Increases when sewage gets mixed with river water Give number of Salmonella in water Has no relationship with ORGANIC MATTER present in river water Answer :B

Discussion

20367.	Question : BOD is a parameter of.......
Answer» Organic substances present in water. Industrial WASTE, which has been released in water PONDS, RIVER. PROPORTION of CO which is combined with Hb During dark phase, REQUIRED `O_2`proportion in green plants Solution :Organic substances present in water.

Discussion

20368.	Question : BOD is a measure of :
Answer» amount of oxygen NEEDED by green plants during night industrial WASTES poured into WATER-bodies amount of CO inseparably combined with haemoglobin Extent to which water is POLLUTED with organic compounds Answer :D

Discussion

20369.	Question : Bluegreen algae are placed in the kingdom:
Answer» Plantae Protista Fungi Monera Answer :D

Discussion

20370.	Question : Blue revolution is rapid increase in milk production.
Answer» ANSWER :FISH PRODUCTION

Discussion

20371.	Question : Blue Revolution
Answer» SOLUTION :Through aquaculture and pisciculture we have been able to increase the production of aquatic PLANTS and animals, both fresh WATER and marine. This has led to the development and flourishing of the FISHERY Industry. The revolution in fishery is known as blue revolution.

Discussion

20372.	Question : Blue green pigment is
Answer» Phycocyanin PHYCOERYTHRIN PLASTOCYANIN `P_(680)` Answer :D

Discussion

20373.	Question : Blue-green algae belong to
Answer» eukaryotes prokaryotes Rhodophyceae Chlorophyceae Solution :(b) Blue-green ALGAE or cyanobacteria are the largestt GRAM negative, aerobic, photoautotrophic, nitrogen-fixing, simplest CHLOROPHYLL containingthallophytes/prokaryotes. They neither have a definite nucleus nor definite plastid with GRANA. They also lack flagella, chlorophyll-b, MESOSOME, meiosis and membrane bound organelles (except ribosome of 70S type).

Discussion

20374.	Question : Blue copper protein complex contained in some molluscs in their piasma for O_2 transport is
Answer» Haemocyanin Chlcirocruorirt Bilirubin Haemoglobin Answer :A

Discussion

20375.	Question : Blue-baby syndrome is caused by drinking water contaminated with
Answer» Carbonates Phosphates SULPHATES Nitrates Answer :D

Discussion

20376.	Question : Blue - baby syndromeis caused by .
Answer» cadmium pollution mercury POISONING CHRONIC EXPOSE to arsenic excess nitrate in DRINKING water Answer :D

Discussion

20377.	Question : Blue blindness
Answer» X-linked RECESSIVE trait Autosomal DOMINANT trait X-linked dominant trait Autosomal recessive trait Answer :D

Discussion

20378.	Question : Blub acts as a propagule in
Answer» Onion Garlic Agava Both a and b Answer :D

Discussion

20379.	Question : Blood with corpuscles or plasma is absent in cockroach as
Answer» Diffusion of gases takes PLACE through integument Exchange of gases occur through tracheae Insects does not REQUIRE oxygen Blood only CARRIES respiratory gases Answer :B

Discussion

20380.	Question : Blood vessels carrying least and maximum amount of urea are&respectively. Choose the option that fills the blanks correctly.
Answer» RENAL vein and HEPATIC vein Hepatic vein and renal vein Renal artery and hepatic PORTAL vein Hepatic vein and renal artery Answer :B

Discussion

20381.	Question : Blood vessel in earthworm which has valves is
Answer» Dorsal Ventral Lateral Integumentary Answer :A

Discussion

20382.	Question : Blood trasfusion is not possible between
Answer» O (DONAR)-A(RECIPIENT) O(donar)-B(recipient) O(donar)-AB(recipient) O(recipient)-AB(donar) ANSWER :D

Discussion

20383.	Question : Blood transfusion is ……….. grafting.
Answer» Auto Iso HOMO XENO ANSWER :C

Discussion

20384.	Question : Leeches have a ___________ feeding habit.
Answer» SOLUTION :SANGUIVOROUS.

Discussion

20385.	Question : Blood stains are found at the site of a murder. If DNA profiling technique is to be used for identifying the criminal, which of the following is ideal for use?
Answer» SERUM ERYTHROCYTES Leucocytes Platelets ANSWER :C

Discussion

20386.	Question : Blood protein connected antibodies are
Answer» Albumin B-globulin Gammaglobulin a- globulin Answer :C

Discussion

20387.	Question : Blood pressure is under the control of:
Answer» Adrenal Thyroid Thymus Pituitary Answer :A

Discussion

20388.	Question : Blood pressure in the pulmonary artery is
Answer» same as that in aorta more than that in the carotid more than that in PULMONARY vein less than that in venacavae Answer :C

Discussion

20389.	Question : Blood platelets are found only in the blood of
Answer» Birds Reptiles Mammals Amphibians Answer :C

Discussion

20390.	Question : Blood pigment of annelids is
Answer» prostomium peristomium cingulum parietal peritoneum Answer :B

Discussion

20391.	Question : "Blood of a man is tested positive for cannabinoid."Which part of the body is affected by these ?
Answer» SOLUTION :Brain/Cardio VASCULAR SYSTEM/Nervous system

Discussion

20392.	Question : "Blood of a man is tested positive for cannabinoid."What are these ?
Answer» SOLUTION :Group of CHEMICAL which INTERACT with cannabinoid receptors of brain/Drugs/Narcotics

Discussion

20393.	Question : "Blood of a man is tested positive for cannabinoid."From where these are extracted naturally ?
Answer» SOLUTION :From the INFLORESCENCE of CANNABIS sativa/Ganja/Hemp plant/Cannabis.

Discussion

20394.	Question : Blood is a fluid connective tissue derived from ……….. .
Answer» ectoderm mesoderm endoderm epithelium Answer :B

Discussion

20395.	Question : Blood in_____ vein carries the least amount of nitrogenous wastes.
Answer» ANSWER :RENAL VEIN

Discussion

20396.	Question : Bloodhelps to maintain waterbalanceinthe body .
Answer» ANSWER :TRUE

Discussion

20397.	Question : _____blood group is called universal donor.
Answer» ANSWER :O-blood GROUP

Discussion

20398.	Question : _____blood group are called universal recipient.
Answer» ANSWER :AB

Discussion

20399.	Question : Blood flow from arteries to capillaries is regulated by
Answer» ARTERIOLES PRE CAPILLARY sphincters valves in the heart tunica EXTERNA of arteries Answer :A

Discussion

20400.	Question : Blood do not become acidic although it carries CO_(2) because :-
Answer» `CO_(2)` is continously diffused through tissues `CO_(2)` combines with `H_(2)O` to FORM `HCO_(3)` In `CO_(2)` transport buffers playsan IMPORTANT role `CO_(2)` is absorbed by WBC Answer :3

Discussion

Explore topic-wise InterviewSolutions in .

Question : Bombay green banana cultivation is the result of

Question : Bombinator threatens its adversary by

Question : Bohr effect is related with

Question : Body wall of Hydra is_______.

Question : Body having meshwork of cells, internal cavities lined withfood filtering flagellated cells and indirect development are the characteristic of phylum

Question :BOD values of different samples of water are given :- Which of the above given sample will have least number of Daphnia ?

Question : BOD values of different samples of water are given. Sample A BOD = 5, Sample B BOD = 12 , Sample C BOD = 2, Sample D BOD = 7 Which of the above - given sample will have the least number of Daphnia ?

Question : BOD of waste water is estimated by measuring the amount of(A) Total organic matter(B) Biodegradable organic matter(C) Oxygen evolution(D) Oxygen consumption

Question : BOD stands for.......

Question : BOD of waste water is estimated by measuring the amount of :

Question : "BOD is commonly calculated as an index of water pollution."Do you agree with this statement ? Why ?

Question : BOD means.....(A) amount of oxygen needed for degradation in water(B) it is a measure of the organic matter in a water(C) it is a measure of inorganic matter in soil(D) both (A) and (B)

Question : "BOD must be low in fresh water" a . Expand BOD. b. Define BOD. c. Write the importance of BOD.

Question : "BOD is commonly calculated as an index of water pollution." Explain BOD

Question : Elaborate BOD. BOD is an index of water pollution. Explain.

Question : BOD in a river water :-

Question : BOD is a parameter of.......

Question : BOD is a measure of :

Question : Bluegreen algae are placed in the kingdom:

Question : Blue revolution is rapid increase in milk production.

Question : Blue Revolution

Question : Blue green pigment is

Question : Blue-green algae belong to

Question : Blue copper protein complex contained in some molluscs in their piasma for O_2 transport is

Question : Blue-baby syndrome is caused by drinking water contaminated with

Question : Blue - baby syndromeis caused by .

Question : Blue blindness

Question : Blub acts as a propagule in

Question : Blood with corpuscles or plasma is absent in cockroach as

Question : Blood vessels carrying least and maximum amount of urea are&respectively. Choose the option that fills the blanks correctly.

Question : Blood vessel in earthworm which has valves is

Question : Blood trasfusion is not possible between

Question : Blood transfusion is ……….. grafting.

Question : Leeches have a ___________ feeding habit.

Question : Blood stains are found at the site of a murder. If DNA profiling technique is to be used for identifying the criminal, which of the following is ideal for use?

Question : Blood protein connected antibodies are

Question : Blood pressure is under the control of:

Question : Blood pressure in the pulmonary artery is

Question : Blood platelets are found only in the blood of

Question : Blood pigment of annelids is

Question : "Blood of a man is tested positive for cannabinoid."Which part of the body is affected by these ?

Question : "Blood of a man is tested positive for cannabinoid."What are these ?

Question : "Blood of a man is tested positive for cannabinoid."From where these are extracted naturally ?

Question : Blood is a fluid connective tissue derived from ……….. .

Question : Blood in_____ vein carries the least amount of nitrogenous wastes.

Question : Bloodhelps to maintain waterbalanceinthe body .

Question : _____blood group is called universal donor.

Question : _____blood group are called universal recipient.

Question : Blood flow from arteries to capillaries is regulated by

Question : Blood do not become acidic although it carries CO_(2) because :-