22339 + Interview Questions in Biology in Class 11 Page 231 InterviewSolution

11501.	Question : Study the diagram given alongsideshowing a plant cell kept in a strong sugar solution. Name the parts a, b, c, and d.
Answer» Solution :a . Cell wall B. vacuole C. cell MEMBRANE d. CYTOPLASM.

Discussion

11502.	Question : Study of ticks and mites is ...........
Answer» Acarology Entomology Malacology Carcinology Answer :A

Discussion

11503.	Question : Study of reptiles is known as :
Answer» Serpentology Herpentology Ichthyology None of these Answer :B

Discussion

11504.	Question : Study of replies and amphibians is
Answer» batrachology Herepetology ORNITHOLOGY Ichthyology Answer :B

Discussion

11505.	Question : Study of fungus is called as ……………..
Answer» PHYCOLOGY MYCOLOGY ALGOLOGY BIOLOGY Answer :B

Discussion

11506.	Question : Study of fruits is called as ...........
Answer» homology POMOLOGY horticulture apology Solution :pomology

Discussion

11507.	Question : The study of fishes is called
Answer» HERPETOLOGY Batrachology ICHTHYOLOGY ORNITHOLOGY ANSWER :C

Discussion

11508.	Question : Studyof amphibians is
Answer» Batrachology ORNITHOLOGY ICHTHYOLOGY Entomology Answer :A

Discussion

11509.	Question : Study of algae is called …………………. .
Answer» BIOLOGY MYCOLOGY BRYOLOGY PHYCOLOGY ANSWER :D

Discussion

11510.	Question :Study carefully the following stages of life cycle of malarial parasite i.e., plasmodium. Arrange these stages in the correct sequence and select the correct answer1) Sporozoites leave the blood stream and enter the liver cells of man 2) Sporozoites present in the salivary glands of female Anopheles mosquito are injected into the blood stream of man 3) The parasite reproduces asexually in RBCs, resulting in bursting of RBCs and causing the cycles of fever, released parasites infect new RBCS 4) The parasite reproduces asexually in liver cells, ultimately causing the rupturing of cells 5) Two types of gametocytes i.e., microgametocytes and macrogametocytes develop in the RBCs. 6) Female Anopheles mosquito takes up the gametophytes with blood meal of an infected person ) mature infective stage of the parasite i.e., sporozoites migrate to the mosquito's salivary glands 8) Fertilization and development stages of the parasite takes place in crop of mosquito
Answer» `2 to 1 to 4 to 3 to 5 to 6 to 8 to 7` `2 to 4 to 1 to 3 to 5 to 6 to 8` `1 to 2 to 4 to 3 to 5 to 6 to 8 to 7` `6 to 8 to 7 to 4 to 5 to 2 to3 to 1` Answer :A

Discussion

11511.	Question : Studycarefullythe given flow chart and fill in the blanks(A) , (B) , (C ) and (D )
Answer» ANSWER :C

Discussion

11512.	Question : Students can construct their own aquaponic system with materials available in their laboratory. An old aquarium or any water tight container can be converted into simple aquaponics system Materials Required: Aquarium tank/ any water tight container, a floating Styrofoam platform (thermocol), growing medium-coconut fibre. An air pump and air stone, nutrient solution (vermiwash or can buy commercially available nutrient solution), plastic cups and seeds. Cut a floating thermocol platform to fit the tank. Make holes on the platform to insert plastic cups with the growing medium. Fill the aquarium tank with water and nutrients. An air pump supplies air to the air stone that bubbles the nutrient solution and supplies oxygen to the roots. Place the floating platform on top of the nutrient solution and place the plastic cups with plants into the holes in the platform. Now your simple hydroponics system is ready to build a aquaponic system fishes can be introduced into the tank instead of nutrient solution.
Answer» Solution :Students can PERFORM this ACTIVITY under the GUIDANCE of their TEACHER.

Discussion

11513.	Question : Structuresthat supplement respiration in birdsare
Answer» LUNGS AIR BLADDERS air SACS tracheae Answer :C

Discussion

11514.	Question : Structures involved in radial conduction in primary dicot stem are
Answer» VASCULAR bundles Vascular RAYS Medullary rays CONJUNCTIVE tissue Answer :C

Discussion

11515.	Question : Structures between two adjacent cells which is an effective transport pathway -
Answer» Plasmodesmata Secondary WALL layer Middle lamella Primary wall layer Answer :a

Discussion

11516.	Question : Structure which provide shape to chromosome is called
Answer» Telomere Satellite CENTROMERE CHROMOMERE ANSWER :C

Discussion

11517.	Question : Structure and function are correlatable in living organisms. Can you justify this by taking plasma membrane as an example ?
Answer» Solution :The structure and function of CELL membrane is related to each other. Cell membrane possesses protein, lipid and carbohydrates protein works as Ion passage in membrane. Minerals, hormones play a ROLE in TRANSPORT of cellular information. Plants absorb minerals from the SOIL actively, cell membrane acts as protein carrier. Oligo saccharide cell acts as identification place and prevents entry of external substances into the cell. In plant and animal cells, polar hydrophillic end of lipid is arranged outside and non polar hydrophobic is arranged inside. This structure is RESPONSIBLE for the movement of membrane.

Discussion

11518.	Question : Structure and function of a tissue is mainly dependent on
Answer» Its cytoplasmic CONTENTS Its location in the PLANT body Its DISTRIBUTION in the plant kingdom Its origin Answer :B

Discussion

11519.	Question : Structurally, the amphicribal vascular bundles closely resemble to
Answer» PROTOSTELE Siphonostele Solanostele Dictyostele Answer :A

Discussion

11520.	Question : Structurally chlorophyll a and b are different as:
Answer» Chl a has a METHYL GROUP and Chl b has an aldehyde group Chl a has a CARBOXYL group and Chl b has an aldehyde group Chl a has an aldehyde group and Chl b has a methyl group Chl a has an ETHYL group and Chl b has an aldehyde group Answer :A

Discussion

11521.	Question : Structural organisation in animals attains different levels as cell-organ-organ system.What is missing in this chain ? Mention the significance of such an organisation.
Answer» Solution :Many CELLS unite to form a tissue. Many tissues unite to form an organ and many organs unite to form organ system. The body is made up of thousands of cells in HYDRA in which each CELL WORKS independently while in complex body system (eg. human) crores of cells unite and do various functions w hich are connected to each other by connective tissue.

Discussion

11522.	Question : Structural and functional gap between telodendrites of one neuron and dentries of another neuron are
Answer» synapse synaptic vesicle neurogimy all the none Answer :A

Discussion

11523.	Question : Strong acidic food in the stomach stimulates the secretion of secretin from duodenal wall What is the role of secretin in digestion?
Answer» SOLUTION :The SECRETIN STIMULATES the secretion of WATER and bicarbonates

Discussion

11524.	Question : Stromatolites are the colonies of cyanobacteria bind with……..
Answer» CALCIUM carbonate calcium HYDROXIDE magnesium SULPHATE calcium SILICATE. Answer :A

Discussion

11525.	Question : Stroke volume of heart is
Answer» 70 ML blood 7 ml blood 7 L blood 7000 L blood Answer :A

Discussion

11526.	Question : Striga collects
Answer» Only WATER from the HOST Only FOOD from the host Water and food from the host Water and MINERALS from the host ANSWER :D

Discussion

11527.	Question : Striated muscles gets fatigued rapidly.
Answer» Solution :Contraction and relaxation of muscle fibres is RAPID. Glycogen is used up ANAEROBICALLY which produces lactic ACID. At this times, muscles do not SHOW reaction towards stimulation. Such stage of muscles is FATIGUED contition.

Discussion

11528.	Question : Stress hormone is
Answer» oxytocin adrenaline vasopressin sex HORMONE

Discussion

11529.	Question : Streptomyces is included in
Answer» Fungi Actinomycetes Eubacteriales VINUS ANSWER :B

Discussion

11530.	Question : Strcture that helpin swimming in Nereis
Answer» PSEUDOPODIA TENTACLES parapodia tube feet Answer :C

Discussion

11531.	Question : Stratum corneum contains
Answer» CHITIN Keratin CELLULOSE Mucus Answer :B

Discussion

11532.	Question : Stratified squamous epithelium covers moist surfaces likebuccal cavity
Answer» TRUE False Answer :TRUE

Discussion

11533.	Question : Stratified epithelial cells have limited role in secretion. Justify their role in our skin.
Answer» Solution :Stratified epithelium : It has epithelium CELLS. Its bottom layer is made up of columnar or cuboidal cells. It is a type of com pound epithelium and its outer layer possesses WATER proof protein. It is CALLED keratin. The layer of dead cells is called dead layer.During wear and tear it is removed at some DISTANCE. So th e ir fu nction is LIM ited in absorption and secretion. The main function of stratified epithelium is protection of body against mechanical and chemical stress.

Discussion

11534.	Question : Stratified epithelium is found in :
Answer» SEMINIFEROUS tubule Fallopian tube Nasal CAVITY KIDNEY tubule Answer :C

Discussion

11535.	Question : Stratified Epithelium :
Answer» Solution :LOCATION : In trachea and INNER surface of LARGE RESPIRATORY tubes.Function : To remove mucus.

Discussion

11536.	Question : Straifiedepitheliaare builtfor the protection ortoresistabration. Howare the simpleepitheliabetterat ?
Answer» SOLUTION :The simple epithelia are better at ABSORPTION, SECRETION of mucus, enzymes and other substances.

Discussion

11537.	Question : Storingcarbohydrates in theformof polysaccharides hasfollowingadvantahes :
Answer» diuringtheirformation, manymoleculesof waterareremovedfrommonosaccharide ( dehydrationsynthesis ), condensingthebulkto bestored . whennecessary,polysaccsrides arebrokendownbyenzymesfor thereleare ofenergy Unikesmallcarbohydrates, polysaccharidesarerela-tivelteasy to STORE. All of these Answer :D

Discussion

11538.	Question : Strach sheath
Answer» SOLUTION :Location : In ENDODERMIS of SUNFLOWER stem, inner perenchmatous taus CELLS POSSESS starch grains. Function : That stores starch .

Discussion

11539.	Question : Storage tissue is
Answer» COLLENCHYMA PARENCHYMA SCLERENCHYMA Phloem Answer :B

Discussion

11540.	Question : Storage product of most algae is
Answer» Fat Starch Glycogen Cellulose Answer :B

Discussion

11541.	Question : Storage leaves are observed in …………………… family.
Answer» SOLANACEAE Cucurbitaceae Crassulaceae Musaceae Solution :Crassulaceae

Discussion

11542.	Question : Storage leaves are found in
Answer» PISUM Zizyphus ALLIUM Acacia Answer :D

Discussion

11543.	Question : Stone wort refers to …….
Answer» Chara Gelidium ANABAENA Chlamydomonas Answer :A

Discussion

11544.	Question : Stomatal opening and closure are due to
Answer» Presence of gasses INSIDE leaves Gene action pressure offered by GUARD cells Pressure offered by subsidiary cells Answer :C

Discussion

11545.	Question : Stomatal opening and closing involves the role of various ions. In the given figure arrows depict the movement of certain ions during stomatal opening in light. Identify the ions (P,Q,R and S) and select the correct option.
Answer» <P>`{:(P,Q,R,S),("Malate"^(2-),K^(+),CI^(-),H^(+)"):}` `{:(P,Q,R,S),(K^(+),H^(+),CI^(-),"Malate"^(2-)):}` `{:(P,Q,R,S),(H^(+),K^(+),CI^(-),"Malate"^(2-)):}` `{:(P,Q,R,S),(K^(+),"Malate"^(2-),H^(+),CI^(-)):}` Solution :In light, Starch is converted into phosphoenol pyruvic ACID `(PEP)` in the pressure of `PEP`case enzyme. `PEP`combines with `CP_(2)` to form OAA and then malic acid. Malic acid dissociates into malate ions `(malate^(2-))` and `H^(+)` ions in the guard cells. `H^(+)` ions are transported to epidermal cells and `K^(+)` ions are taken into the guard cells in exchange of `H^(+)` (ion exchange). Some `CI^(-)` ions are also taken in to neutralize some of the `K^(+)` ions. `H^(+) - K^(+)` exchange is an active PROCESS which involves inolvement of `ATP`. Increased `K^(+)` and malate ion concentration in the vacuole of guard cells causes SUFFICIENT osmotic pressure to absorb water from surrounding cells, resulting in increased turgor of guard cells and thus opening of stomata.

Discussion

11546.	Question : Stomatal movements are influenced by a number of environmental factors, Which of the following statements is //are incorrect regarding this? (ii)Blue light keeps stomata open during the day pormoting the movement of K_(+) ions into guard cells. (ii) Increased CO_(2) concentraation reduces the pH of guard cells which promotes conversion of sugar into starch ultimately causing closure of stomata. (iii) Abscisic acid under stress conditions, causes repid movement of K_(+) ions into guard cells. Highly concentratedsucrose or salt solution when applied over to stomata results in stomata opening.
Answer» `(i)` and `(II)` `(iii)` and `(iv)` `(iii)`only `(iv)` only SOLUTION :Abscisic acid `(ABA)`, is called as stress hormone as it causes closing of stomata under water stress conditions by causing rapid MOVEMENT of `K^(+)` IONS out of the guard cells. HIGHLY concentrated sucrose `//`salt solution results in stomatal closure.

Discussion

11547.	Question : Stomatal apparatus consists of
Answer» GUARD CELLS only SUBSIDIARY cells only Stomatal pore only All the above Answer :D

Discussion

11548.	Question : Stomata open when guard cells:
Answer» sense an increase in `CO_2` in the air spaces of the leaf flop open due to a decrease in turgor pressure become more TURGID due to an influx of K, FOLLOWED by the osmotic flow of water accumulate water by ACTIVE transport Answer :C

Discussion

11549.	Question : Stomata open at night and close during day in (a)succulents(b) hydrophytes(c) mesophytes(d) epiphytes
Answer» succulents hydrophytes mesophytes epiphytes Answer :A

Discussion

11550.	Question : Stomata of CAM plants :
Answer» Are always open Open during the DAY and CLOSE at night Open during the night and close during the day NEVER open Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Study the diagram given alongsideshowing a plant cell kept in a strong sugar solution. Name the parts a, b, c, and d.

Question : Study of ticks and mites is ...........

Question : Study of reptiles is known as :

Question : Study of replies and amphibians is

Question : Study of fungus is called as ……………..

Question : Study of fruits is called as ...........

Question : The study of fishes is called

Question : Studyof amphibians is

Question : Study of algae is called …………………. .

Question : Studycarefullythe given flow chart and fill in the blanks(A) , (B) , (C ) and (D )

Question : Structuresthat supplement respiration in birdsare

Question : Structures involved in radial conduction in primary dicot stem are

Question : Structures between two adjacent cells which is an effective transport pathway -

Question : Structure which provide shape to chromosome is called

Question : Structure and function are correlatable in living organisms. Can you justify this by taking plasma membrane as an example ?

Question : Structure and function of a tissue is mainly dependent on

Question : Structurally, the amphicribal vascular bundles closely resemble to

Question : Structurally chlorophyll a and b are different as:

Question : Structural organisation in animals attains different levels as cell-organ-organ system.What is missing in this chain ? Mention the significance of such an organisation.

Question : Structural and functional gap between telodendrites of one neuron and dentries of another neuron are

Question : Strong acidic food in the stomach stimulates the secretion of secretin from duodenal wall What is the role of secretin in digestion?

Question : Stromatolites are the colonies of cyanobacteria bind with……..

Question : Stroke volume of heart is

Question : Striga collects

Question : Striated muscles gets fatigued rapidly.

Question : Stress hormone is

Question : Streptomyces is included in

Question : Strcture that helpin swimming in Nereis

Question : Stratum corneum contains

Question : Stratified squamous epithelium covers moist surfaces likebuccal cavity

Question : Stratified epithelial cells have limited role in secretion. Justify their role in our skin.

Question : Stratified epithelium is found in :

Question : Stratified Epithelium :

Question : Straifiedepitheliaare builtfor the protection ortoresistabration. Howare the simpleepitheliabetterat ?

Question : Storingcarbohydrates in theformof polysaccharides hasfollowingadvantahes :

Question : Strach sheath

Question : Storage tissue is

Question : Storage product of most algae is

Question : Storage leaves are observed in …………………… family.

Question : Storage leaves are found in

Question : Stone wort refers to …….

Question : Stomatal opening and closure are due to

Question : Stomatal opening and closing involves the role of various ions. In the given figure arrows depict the movement of certain ions during stomatal opening in light. Identify the ions (P,Q,R and S) and select the correct option.

Question : Stomatal apparatus consists of

Question : Stomata open when guard cells:

Question : Stomata open at night and close during day in (a)succulents(b) hydrophytes(c) mesophytes(d) epiphytes

Question : Stomata of CAM plants :