22339 + Interview Questions in Biology in Class 11 Page 244 InterviewSolution

12151.	Question : Sea anemone belongs to phylum
Answer» PROTOZOA PORIFERA COELENTERATA ECHINODERMATA SOLUTION :echinodermata

Discussion

12152.	Question : Scutellum :
Answer» SOLUTION :In monocot plants, embryonal REGION consists of ONE LARGE and shield shaped cotyledon known as SCUTELLUM.

Discussion

12153.	Question :Scutellum is :
Answer» a PROTECTIVE COVERING of the RADICLE a protective covering of the PLUMULE an ENDOSPERM a shield-shaped cotyledo Solution :a shield-shaped cotyledo

Discussion

12154.	Question :Sculpturing of exine of pollen is important in
Answer» MITOTIC STUDIES physiological studies taxonomic studies medicinal studies Answer :C

Discussion

12155.	Question : Scuba divers need to face the problem of
Answer» NITROGEN NARCOSIS low OXYGEN content high CARBON DIOXIDE content lower pressure Solution :nitrogen narcosis

Discussion

12156.	Question : Sclerites are joined to each other by thin and flexible membrane called
Answer» arthrodial membrane epicranial STRUCTURES Basement membrane NONE ANSWER :A

Discussion

12157.	Question : Scolopidia are
Answer» CUTICULAR RECEPTORS subcuticular receptors both 1 & 2 none of the above ANSWER :B

Discussion

12158.	Question : Sclerenchymatous cells in their cell walls have largepercentage of :
Answer» SILICA LIGNIN PECTIN cellulose Solution :lignin

Discussion

12159.	Question : Sclerieds present in
Answer» FRUIT WALL of nuts pulp of guava seed COAT of legumes All of these Answer :D

Discussion

12160.	Question : Sclerenchyma is a simple supportive tissue of highly thick walled cells.
Answer» ANSWER :TRUE

Discussion

12161.	Question : Sclerenchyma is mechanical tissue because it has
Answer» SECONDARY wall THICK lignified cell wall PITS has BORDERED pits Answer :B

Discussion

12162.	Question : Sclerenchyma fibres and sclereidsare both types of sclerenchyma.
Answer» SOLUTION :Both are highly THICKENED due to deposition of lignin and cellulose. Both are DEAD at MATURITY.

Discussion

12163.	Question : Scientists and their contribution for taxonomy.
Answer» Solution :1. ECOSYSTEM- A.G. Tansley, 1935 2. Biodiversity- Walter Rosen, 1985 3. Taxonomy- AP de Candolle 4. Father of Taxonomy (classical)-ARISTOTLE 5. Father of modern taxonomy, Founder of modern SYSTEMATICS- Carolus Linnaeus 6. Aristotle- Historia Animalium 7. Theophrastus- Father of Botany 8. Species- John Ray (1627-1708) 9. Five KINGDOM classification- R.H. Whittaker (1969) 10. Three domain classification- Carl Woese (1977) 11. Seven kingdom classification- Cavalier- Smith (1987) 12. Binomial nomenclature- Carolus Linnaeus 13. John Ray- Methodus Plantarum Nova and Historia Generalis Platarum 14. Trinomial nomenclature- Huxley and Stricklandt 15. Charles Darwin- Origin of species 16. Ernst Haeckal- Cladogram

Discussion

12164.	Question : Scientist who named the unicellular particles as 'animalcules'.
Answer» Aristotle Robert Brown ANTONIE VON LEEUWENHOEK Robert Hooke Solution :Antonie von Leeuwenhoek

Discussion

12165.	Question : Scientist who named the cytoplasm as "Sarcode" is____
Answer» Dajardin Corti Purkinje Hugo VAN Mohl Solution :Dujardin

Discussion

12166.	Question : Scientist who described chromosomes for the first time is………………………………………
Answer» Robert BROWN ANON VAN Leeuwenhoek Boveri Anton SCHNEIDER Solution :Anton Schneider

Discussion

12167.	Question : Scientific name of Mango : Mangifera indica :: wheat : ……..
Answer» SOLUTION :TRITICUM AESTIVUM

Discussion

12168.	Question : Scientific name of king cobra is ………………….. .
Answer» NAJA naja AMPHIBIANS Naja HANNAH Vipera russelli SOLUTION :Naja Hannah

Discussion

12169.	Question : Scientific name of Indian rubber tree is
Answer» Calotropis CATHARANTHUS Ficus ELASTICA HEVEA brasiliensis Answer :C

Discussion

12170.	Question : Scientific name for modern human ____
Answer» SOLUTION :HOMO sapieams

Discussion

12171.	Question : Science involved in soure of energy development, form and time.....
Answer» ENERGY science Exchange science Redox science Bio energy science Answer :D

Discussion

12172.	Question : Schleiden and Schwann (1838) :
Answer» Solution :Together formulated the CELL theory. Schleiden was a German botanist and SCHWANN was a British ZOOLOGIST.

Discussion

12173.	Question : Schizogenous cavity is seen in
Answer» HELIANTHUS PINUS CUCURBITA Both 1 and 2 Answer :D

Discussion

12174.	Question : Scapigerous inflorescence is seen in ..........
Answer» ALLIUM sativum Allium CEPA Aloevera Maenodorum SOLUTION :Allium cepa

Discussion

12175.	Question : Scales in Osteichthyes are
Answer» CYCLOID or ctenoid placoid or cycloid palcoid or ctenoid all the above ANSWER :A

Discussion

12176.	Question : Scales are found in
Answer» PISCES rabbit human rat

Discussion

12177.	Question : Scalariform conjugation takes place in
Answer» OEDOGONIUM SPIROGYRA Ulothrix Volvox ANSWER :B

Discussion

12178.	Question : Scalebarkscan beobserved in ……………
Answer» GUAVA Quercus Coconut Neem Answer :A

Discussion

12179.	Question : Scalariform conjugation is seen in ………
Answer» NOSTOC ZYGNEMA Ulothrix Volvox Answer :B

Discussion

12180.	Question : Saxicolous lichen grow on……………..
Answer» GROUND BARK WOOD ROCK ANSWER :D

Discussion

12181.	Question : Satiety centres of brain are present in
Answer» CEREBRAL hemispheres hypothalamus cerebellum MEDULLA oblongata Solution :NA

Discussion

12182.	Question : Satellite .DNA. is useful tool in
Answer» ORGAN transplantation Sex DETERMINATION FORENSIC science Genetic engineering Answer :C

Discussion

12183.	Question : Satellite DNA is important because it
Answer» shows high DEGREE of polymorphism in population and also the same degree of polymorphism in an individual, which is HERITABLE from PARENTS to children. does not code for PROTEINS and is same in all members of the population codes for enzymes needed for DNA replication codes for proteins needed in CELL cycle. Answer :A

Discussion

12184.	Question : SARS is caused by a variant of
Answer» PNEUMOCOCCUS pneumonia COMMON COLD by CORONA VIRUS Asthma Bronchitis Solution :Common cold by Corona virus

Discussion

12185.	Question : Sarcomere is distance between: ...........
Answer» TWO I-BANDS A and I bands Two CONSECUTIVE Z-lines Z and A bands Solution :Two consecutive Z-lines

Discussion

12186.	Question : Sarcomere, actin filaments, myosin fillaments, sarcoplasmic reticulum.
Answer» ANSWER :Sarcoplasmic RETICULUM

Discussion

12187.	Question : Saprophyte is an organism that depends on dead plant or animal tissue for a source of nutrition and metabolic energy. Which ot the following is the most appropriate definition of a fungus?
Answer» EUKARYOTIC MULTICELLULAR heterotroph Parasitic, eukaryotic plant Saprophytic plants Saprophytic heterotroph Answer :D

Discussion

12188.	Question : Sapwoodcan alsobe termedas ………….
Answer» Duramen POROUS wood PHELLOGEN Alburnum Answer :D

Discussion

12189.	Question : Sarcolemma, sacrcoplasm and sarcoplasmic reticulum refer to a particular type of cell in our body. Which is this cell and to what parts of that cell do these names refer to ?
Answer» Solution :All theseare parts of muscle. FIBRE, surrounding COVERING is CALLED sarcolemma, its cytoplasm is SARCOPLASM and endoplasmic reticulum is sarcoplasmic tubular system which stores `Ca^(++)` .

Discussion

12190.	Question : Saprophytic protists that form plasmodium are
Answer» Fungi Slime moulds Sporozoans Ciliates Answer :B

Discussion

12191.	Question : What is sarcomere?
Answer» SOLUTION : In muscle fibre, region between two consecutive Z line is termed as sarcomere. Each sarcomere has ONE A DISC and two HALF I-disc. It is strunctural and functional unit of muscle fibre.

Discussion

12192.	Question : Saprobic fungi derive nutrients from :
Answer» non-living ORGANIC MATTER root hairs living ORGANISMS both (a) and (B) SOLUTION :non-living organic matter

Discussion

12193.	Question : Sap wood is meant for conduction of sap.
Answer» ANSWER :TRUE

Discussion

12194.	Question : Sap wood/Heart wood is dark brown in colour.
Answer» ANSWER :HEART WOOD

Discussion

12195.	Question : SAN, AVN, Bundle of His and Purkinje fibres constitute the conducting sysytem of the heart. Which among the above is the pacemaker of the heart?
Answer» SOLUTION :SINUS AURICULAR NODE (SAN)

Discussion

12196.	Question : SAN can generatemaximum numberof actionpotential of .
Answer» `70 -75 "MIN"^(-1)` `70-75 "SEC"^(-1)` `70- 75 hr^(-1)` Till death Answer :A

Discussion

12197.	Question : SAN, AVN, Bundle of His and Purkinje fibres constitute the conducting sysytem of the heart. What happens to the heart when the bundle of His is removed from the heart?
Answer» Solution :Cardiac failure due to ABSENCE of VENTRICULAR systole leading to absence of HEART FUNCTION and cardiac impulse

Discussion

12198.	Question : Sam's optometrist tells him that his intraocularpressure is high. What is this condition called and which fluid does it involve ?
Answer» Solution : The aqueous humour PRESENT in between iris and lens and the cornea and iris is produced and drained at the same rate, maintaining a constant intra OCULAR pressure of about 16 MM Hg. Any block in the canal of schlemm increases the intra ocular pressure of aqueous humour. This condition is CALLED "Glaucoma". Due to pressure, optic nerve and the retina are compressed This leads to blindness.

Discussion

12199.	Question : Saltatory conduction of impulse occurs in
Answer» liver cells non-myelinated nerve FIBRES myelinated nerve fibres None of these Solution :The fatty myelin sheath of myelinated nerve fibres prevents the flow of ions between external fluid and fluid present within the axon.At the NODE of Ranvier, the INSULATING myelin sheath is absent and thus, the ionic flow occurs at these POINTS only.Therefore, the action potential jumps from node to node, due to which the transmission of IMPULSE is more rapid in myelinated fibres. This is called the saltatory conduction of nerve impulse.

Discussion

12200.	Question : Salt is applied to tennis lawns to kill weeds. How does salting tennis lawns help in killing of weeds without affecting the grass ?
Answer» Solution :The salt solution is a HYPERTONIC solution which is responsible for exo osmosis. 1 cup salt can be easily dissolved in 2 cup of water. While it is SPRINKLED on weeds it starts destroying it. This way the concentration of salt increases. If weeds STILL EXIST they are removed from the FORM.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Sea anemone belongs to phylum

Question : Scutellum :

Question :Scutellum is :

Question :Sculpturing of exine of pollen is important in

Question : Scuba divers need to face the problem of

Question : Sclerites are joined to each other by thin and flexible membrane called

Question : Scolopidia are

Question : Sclerenchymatous cells in their cell walls have largepercentage of :

Question : Sclerieds present in

Question : Sclerenchyma is a simple supportive tissue of highly thick walled cells.

Question : Sclerenchyma is mechanical tissue because it has

Question : Sclerenchyma fibres and sclereidsare both types of sclerenchyma.

Question : Scientists and their contribution for taxonomy.

Question : Scientist who named the unicellular particles as 'animalcules'.

Question : Scientist who named the cytoplasm as "Sarcode" is____

Question : Scientist who described chromosomes for the first time is………………………………………

Question : Scientific name of Mango : Mangifera indica :: wheat : ……..

Question : Scientific name of king cobra is ………………….. .

Question : Scientific name of Indian rubber tree is

Question : Scientific name for modern human ____

Question : Science involved in soure of energy development, form and time.....

Question : Schleiden and Schwann (1838) :

Question : Schizogenous cavity is seen in

Question : Scapigerous inflorescence is seen in ..........

Question : Scales in Osteichthyes are

Question : Scales are found in

Question : Scalariform conjugation takes place in

Question : Scalebarkscan beobserved in ……………

Question : Scalariform conjugation is seen in ………

Question : Saxicolous lichen grow on……………..

Question : Satiety centres of brain are present in

Question : Satellite .DNA. is useful tool in

Question : Satellite DNA is important because it

Question : SARS is caused by a variant of

Question : Sarcomere is distance between: ...........

Question : Sarcomere, actin filaments, myosin fillaments, sarcoplasmic reticulum.

Question : Saprophyte is an organism that depends on dead plant or animal tissue for a source of nutrition and metabolic energy. Which ot the following is the most appropriate definition of a fungus?

Question : Sapwoodcan alsobe termedas ………….

Question : Sarcolemma, sacrcoplasm and sarcoplasmic reticulum refer to a particular type of cell in our body. Which is this cell and to what parts of that cell do these names refer to ?

Question : Saprophytic protists that form plasmodium are

Question : What is sarcomere?

Question : Saprobic fungi derive nutrients from :

Question : Sap wood is meant for conduction of sap.

Question : Sap wood/Heart wood is dark brown in colour.

Question : SAN, AVN, Bundle of His and Purkinje fibres constitute the conducting sysytem of the heart. Which among the above is the pacemaker of the heart?

Question : SAN can generatemaximum numberof actionpotential of .

Question : SAN, AVN, Bundle of His and Purkinje fibres constitute the conducting sysytem of the heart. What happens to the heart when the bundle of His is removed from the heart?

Question : Sam's optometrist tells him that his intraocularpressure is high. What is this condition called and which fluid does it involve ?

Question : Saltatory conduction of impulse occurs in

Question : Salt is applied to tennis lawns to kill weeds. How does salting tennis lawns help in killing of weeds without affecting the grass ?