22339 + Interview Questions in Biology in Class 11 Page 200 InterviewSolution

9951.	Question : The primary producers of the deep-sea ecosystem are:
Answer» Blue-green algae Coral reefs Green algae Chemosynthetic BACTERIA ANSWER :D

Discussion

9952.	Question : The primary host of plasmodium is
Answer» Man Male culex Sheep FEMALE anopheles Answer :D

Discussion

9953.	Question : The primary growth in plants results from:
Answer» PRIMARY cambium cambium promeristem LATERAL meristems Solution :promeristem

Discussion

9954.	Question : The priciple of vaccination is based upon the following property of immune system
Answer» Memory Diversity Specificity All of these Answer :A

Discussion

9955.	Question : The pricipal function of loop of Henle is (a) reabsorption of Na+(b) reabsorption of Cl−(c) to concentrate urine(d) dilution of urine
Answer» REABSORPTION of `NA^(+)` reabsorption of `CL^(-)` to CONCENTRATE URINE dilution of urine

Discussion

9956.	Question : Comment upon the following : In ascent of sap, the sap moves upwards against the force of gravity.
Answer» SOLUTION :ROOT PRESSURE.

Discussion

9957.	Question : The pressure responsible for keeping thestem upright.
Answer» SOLUTION :TURGOR PRESSURE.

Discussion

9958.	Question : ……….the pressure contributed by an individual gas in a mixture of gases.
Answer» SOLUTION :PARTIAL PRESSURE

Discussion

9959.	Question : The presence of two types of nuclei, a macronucleus and a micronucleus, is characteristic of protozoans are grouped under the class ………………. .
Answer» SPOROZOA FLAGELLATE SARCODINA ciliata ANSWER :D

Discussion

9960.	Question : The presence of plasmamebrane in animal cell was first reported by
Answer» SCHLEIDEN Schwann Robert HOOKE A.V.Leeuwenhoek ANSWER :B

Discussion

9961.	Question : The presence of mesoderm :
Answer» restricts the development of a COELOM is associated with the ORGAN level of ORGANIZATION is associated with the development of MUSCLES both (B) and (c) Answer :D

Discussion

9962.	Question :The presence of leghaemoglobin in root nodules was first recognised by ……………………………..
Answer» SOLUTION :ALLEN and Allen

Discussion

9963.	Question : The presence of ketone bodies in the urine is called ...
Answer» SOLUTION :KETONURIA

Discussion

9964.	Question : The presence of earthworm in the garden soil can be traced out by
Answer» MOISTURE in soil burrows worm castings all the above ANSWER :C

Discussion

9965.	Question : The presence of corollary corona, sagittate anthers and dumb-bell shaped stigma are the characteristic features of .........
Answer» MUSA paradisiaca Hibiscus rosa-sinensis Catheranthus roseus Ravenala mafagascariensis Answer :C

Discussion

9966.	Question : The presence of cap cell is characteristic of……….
Answer» Chara Gelidium Cladophora Oedogonium ANSWER :D

Discussion

9967.	Question : The presence of casparian strips is a characteristic featureof ......
Answer» SOLUTION :ENDODERMIS

Discussion

9968.	Question : The preoral segment in earthworms is called:
Answer» PROSTOMIUM peristomium clitellum MOUTH ANSWER :A

Discussion

9969.	Question : The pre clitellar, clitellar and post clitellar regions lie respectively from
Answer» 1-12, 13-15, 16- LAST 1-13, 14-17, 18 - last 1-11, 12-16, 17-last 1-13,14-16, 17 - last ANSWER :D

Discussion

9970.	Question : The practice of subjecting seeds to low temperature for a short period of time to induce flowering is known as "_____________".
Answer» ANSWER :VERNALISATION

Discussion

9971.	Question :The practice of breeding and raising livestock is called as ..........
Answer» SOLUTION :ANIMAL HUSBANDRY

Discussion

9972.	Question : The practice of breaking of rocks during rainy season by inserting wooden pegs in them is based on the phenomenon of
Answer» IMBIBITION pressure turgor pressure OSMOSIS pressure wall pressure Solution :Imbibition pressure generated during germination of seeds and spores is so enormous that it can break asphalt roads and concrete pavements. In older times, the imbibition pressure was used in breaking the rocks and stones Dry wooden stakes If driven into a small crack in a ROCK and then SOAKED can develop enough pressure to split the rock.

Discussion

9973.	Question : The P_rform absorbs red light in .........
Answer» 730 620 660 635 Solution :660

Discussion

9974.	Question : The ''power house'' of a cell is
Answer» RIBOSOME GOLGI complex mitochondrion lysosome ANSWER :C

Discussion

9975.	Question : The postganglionc fibres are located in (a) parasympathetic system(b) sympathetic system(c) brain(d) spinal cord
Answer» PARASYMPATHETIC system sympathetic system brain spinal CORD

Discussion

9976.	Question : The potential difference across the membrane of nerve fibre when it does not shown any physiological activity is called resting potential. It is about
Answer» -6OmV` -8OmV` +6OmV` +9OmV(E)-36mV` ANSWER :B

Discussion

9977.	Question : The posterior part of the retina, Which is just opposite to the lens is
Answer» cornea yellow spot fovea centralis Both (B) and c Answer :B

Discussion

9978.	Question : The position of root apical meristem is
Answer» BEHIND CENTRAL CYLINDER Subterminal LATERAL Behind cambium Answer :B

Discussion

9979.	Question : The portions of apical meristems which are separated fromthe axis and remain intercalated between permanent cells are called …….
Answer» SOLUTION :INTERCALARY MERISTEMS

Discussion

9980.	Question : The porphyrin ring has a metal atom "____" in the centre.
Answer» SOLUTION :MAGNESIUM

Discussion

9981.	Question : Theporphyrin head of chlorophyll has …….pyrrole rings.
Answer» 1 2 3 4 Answer :D

Discussion

9982.	Question : The polysaccharide used in evalutingthe function of humannephron is attined form the _____of Dahlia plant.
Answer» ROOT STEM SEEDS FRUIT ANSWER :A

Discussion

9983.	Question : The polysaccharide formed from fructose monomers only is :
Answer» INSULIN LIGNIN CELLULOSE AMYLOSE ANSWER :A

Discussion

9984.	Question :The pollen grain is related to the embryosac as
Answer» Male gametophyte is to the egg Male gametophyte is to the FEMALE gametophyte Sperm is to the egg Sperm is to the female gametophyte ANSWER :B

Discussion

9985.	Question : The pointed portion of the elbow is
Answer» ACROMION PROCESS GLENOID CAVITY OLECRANON process symphysis Solution :olecranon process

Discussion

9986.	Question : The point in eye of mammals from which optic nerves and blood vessels leave the eye ball is called
Answer» YELLOW spot blind spot pars optica none of these

Discussion

9987.	Question : The point from which leaf arises is called as ……………………..
Answer» internode intranode NODE code Solution :node

Discussion

9988.	Question : The ploidy of the aleurone cell when a "4n" female plant is crossed with "2n" male plant
Answer» 5n 4n 3n 2n Answer :A

Discussion

9989.	Question :The plasma membrane is more permeable to
Answer» POLYSACCHARIDES PROTEINS Glycoproteins Phospholipids Answer :D

Discussion

9990.	Question : The plasma membrane is a fully permeable membrane.
Answer» ANSWER :FALSE

Discussion

9991.	Question : The plasma membrane covering the neuron is called …………….
Answer» SOLUTION :NEURILEMMA

Discussion

9992.	Question :The plants with unilocular, bilocular, trilocularovaries respectively are
Answer» Derris, CAPSICUM, Yucca GLYCINE, Lycopersicon, Gloriosa Pisum, Datura, Gloriosa Arachis, SOLANUM, Pisum ANSWER :B

Discussion

9993.	Question : The plants that grows on dry habitats are called …………………………
Answer» mesophytes XEROPHYTES lithophytes psammophytes Solution :xerophytes

Discussion

9994.	Question : The plants that flower during winter are "____________" plants and the ones that flower during summer are "_________" plants.
Answer» ANSWER :Short-day, Long-day

Discussion

9995.	Question :The plants that first became dominant in the Mesozoic era after the mass extinctions of the Palaeozoic era were the :
Answer» FERNS HORSETAILS FLOWERING plants GYMNOSPERMS SOLUTION :gymnosperms

Discussion

9996.	Question : The plants such as (i) and date palm are called (ii). The staminate and pistillate flowers in these plants are found in separate indivuals. The information in which alternative completes the given statement?
Answer» `{:("i",ii),("papaya","MONOECIOUS"):}` `{:("i",ii),("papaya","dioecious"):}` `{:("i",ii),("COCONUT","dioecious"):}` `{:("i",ii),("coconut","monoecious"):}` Answer :B

Discussion

9997.	Question : The plants also having the hormones like human being. What are they ? Explain the physiological effect of any one.
Answer» Solution :The plants also having the hormones like human being. They are called Phylohormones. Example: Giberillin, Auxin, Cytokinin, ethylene, Abscissic acid. Physiological effeet of of Cytokinins : Cytokinin promotes cell division in the presence of auxin (IAA). Induces cell enlargement associated with IAA and gibberellins. Cytokinin can break the dormancy of certain light-sensitive seeds like tobacco and induces SEED germination. Cytokinin promotes the growth of lateral bud in the presence of apical bud. Application of cytokinin delays the process of aging by nutrient mobilization. It is known as Richmond LANG effect. Cytokinin (i) increases rate protein synthesis (ii) induces the formation of inter-fascicular cambium. (iii) Overcomes apical dominance (iv) induces formation of NEW LEAVES, chloroplast and lateral shoots. Plants ACCUMULATE solutes very actively with the help of cytokinins.

Discussion

9998.	Question : The plant with asymmetric flower is
Answer» Cassia Canna Crocus Cajanus ANSWER :B

Discussion

9999.	Question : The plant of Liliaceae family as medicine
Answer» Tulip Gloriosa Aloevera Mulithi Answer :A

Discussion

10000.	Question : The plant hormone produced by Rhizobium for nodulation is
Answer» IBA NAA `2, 4-D` IAA Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question : The primary producers of the deep-sea ecosystem are:

Question : The primary host of plasmodium is

Question : The primary growth in plants results from:

Question : The priciple of vaccination is based upon the following property of immune system

Question : The pricipal function of loop of Henle is (a) reabsorption of Na+(b) reabsorption of Cl−(c) to concentrate urine(d) dilution of urine

Question : Comment upon the following : In ascent of sap, the sap moves upwards against the force of gravity.

Question : The pressure responsible for keeping thestem upright.

Question : ……….the pressure contributed by an individual gas in a mixture of gases.

Question : The presence of two types of nuclei, a macronucleus and a micronucleus, is characteristic of protozoans are grouped under the class ………………. .

Question : The presence of plasmamebrane in animal cell was first reported by

Question : The presence of mesoderm :

Question :The presence of leghaemoglobin in root nodules was first recognised by ……………………………..

Question : The presence of ketone bodies in the urine is called ...

Question : The presence of earthworm in the garden soil can be traced out by

Question : The presence of corollary corona, sagittate anthers and dumb-bell shaped stigma are the characteristic features of .........

Question : The presence of cap cell is characteristic of……….

Question : The presence of casparian strips is a characteristic featureof ......

Question : The preoral segment in earthworms is called:

Question : The pre clitellar, clitellar and post clitellar regions lie respectively from

Question : The practice of subjecting seeds to low temperature for a short period of time to induce flowering is known as "_____________".

Question :The practice of breeding and raising livestock is called as ..........

Question : The practice of breaking of rocks during rainy season by inserting wooden pegs in them is based on the phenomenon of

Question : The P_rform absorbs red light in .........

Question : The ''power house'' of a cell is

Question : The postganglionc fibres are located in (a) parasympathetic system(b) sympathetic system(c) brain(d) spinal cord

Question : The potential difference across the membrane of nerve fibre when it does not shown any physiological activity is called resting potential. It is about

Question : The posterior part of the retina, Which is just opposite to the lens is

Question : The position of root apical meristem is

Question : The portions of apical meristems which are separated fromthe axis and remain intercalated between permanent cells are called …….

Question : The porphyrin ring has a metal atom "____" in the centre.

Question : Theporphyrin head of chlorophyll has …….pyrrole rings.

Question : The polysaccharide used in evalutingthe function of humannephron is attined form the _____of Dahlia plant.

Question : The polysaccharide formed from fructose monomers only is :

Question :The pollen grain is related to the embryosac as

Question : The pointed portion of the elbow is

Question : The point in eye of mammals from which optic nerves and blood vessels leave the eye ball is called

Question : The point from which leaf arises is called as ……………………..

Question : The ploidy of the aleurone cell when a "4n" female plant is crossed with "2n" male plant

Question :The plasma membrane is more permeable to

Question : The plasma membrane is a fully permeable membrane.

Question : The plasma membrane covering the neuron is called …………….

Question :The plants with unilocular, bilocular, trilocularovaries respectively are

Question : The plants that grows on dry habitats are called …………………………

Question : The plants that flower during winter are "____________" plants and the ones that flower during summer are "_________" plants.

Question :The plants that first became dominant in the Mesozoic era after the mass extinctions of the Palaeozoic era were the :

Question : The plants such as (i) and date palm are called (ii). The staminate and pistillate flowers in these plants are found in separate indivuals. The information in which alternative completes the given statement?

Question : The plants also having the hormones like human being. What are they ? Explain the physiological effect of any one.

Question : The plant with asymmetric flower is

Question : The plant of Liliaceae family as medicine

Question : The plant hormone produced by Rhizobium for nodulation is

Question : The plants that flower during winter are "____" plants and the ones that flower during summer are "_" plants.