1512 + Interview Questions in Biology in Class 9 Page 25 InterviewSolution

1201.	Question :In the hierarchy of classification which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
Answer» SOLUTION :The group of SPECIES. will have SMALLEST number of organism with a maximum characteristic in common. The group of .KINGDOM. will have LARGEST number of organisms.

Discussion

1202.	Question : Between which two groups of plants, do the Gymnosperms occupy their position?
Answer» PTERIDOPHYTA and DICOTS Thallophyta and MONOCOTS Pteridophyta and ANGIOSPERMS Monocots and Dicots SOLUTION :Pteridophyta and Angiosperms

Discussion

1203.	Question : In the given photosynthetic experiment, what will happen to the leaf closed with black paper in starch test? Why?
Answer» Solution :The part of LEAF closed with black PAPER does not turn blue - black, when it is TESTED with iodine solution for the presence of starch. The leaf closed with black paper did not RECEIVE the SUNLIGHT and was unable to manufacture starch.

Discussion

1204.	Question : Becoming exposed to or infected with an infectious microbie does not necessarily can developing noticeable disease! Explain.
Answer» Solution :(1) When a person.s IMMUNE response is strong, he or she can KILL the pathogens that enter the body. (2) The cells associated with immune system can then successfully remove the infectious pathogens. (3) Such INDIVIDUAL REMAINS disease free. (4) So even when exposed to infectious microbe, it may not develop noticeable disease.

Discussion

1205.	Question : In ....................., the food materials are kept inside a cold room in a temperature range of 23^(@)C to 30^(@)C .
Answer» SOLUTION :DEEP FREEZING

Discussion

1206.	Question : Balanoglossus is a ciliary feeder.
Answer» ANSWER :TRUE

Discussion

1207.	Question :In the figure of the earthworm given below, the horizontal lines throughout the body represent the ...
Answer» cells of the body. CELL WALLS separating the cells of the body. vertically arranged muscles of the body. SEPTA separating the segments of the body. Solution :septa separating the segments of the body.

Discussion

1208.	Question : In the cell , lipid molecules are synthesized by
Answer» plastids rough ENDOPLASMIC reticulum Golgi complex smooth endoplasmic reticulum Answer :D

Discussion

1209.	Question : Bacterial diseases
Answer» ANSWER :TYPHOID, TUBERCULOSIS

Discussion

1210.	Question : Bacteria residing in the large intestine produced ………….
Answer» ANSWER :VITAMINE K

Discussion

1211.	Question : In the categories of classification, which level comes just after (below) the kingdom ?
Answer» GENUS DIVISION / PHYLUM Class Species SOLUTION :Division / Phylum

Discussion

1212.	Question : …………..bacteria can cause acene. (Streptococci, Staphylococci, Pneumococci).
Answer» ANSWER :STAPHYLOCOCCI

Discussion

1213.	Question :In the animals of which phylum, is the circulatory system met with for the first time?
Answer» Nematoda ANNELIDA Arthropoda Mollusca Solution :Annelida

Discussion

1214.	Question : Average heart beat is ……
Answer» ANSWER :72 times/minute

Discussion

1215.	Question : Augusta Ada Lovelace was honored as the first programmer for programming________
Answer» SOLUTION :ARITHMETIC OPERATIONS

Discussion

1216.	Question : In sclerenchyma, the cell wall is
Answer» LIGNIFIED suberised pectinised cutinised ANSWER :A

Discussion

1217.	Question : In response to light, the Auxin……… the cells of a stem. So that the plant bends towards the light
Answer» candenese solidifies moves elongates Answer :D

Discussion

1218.	Question : ATP is called energy currency of the cell.
Answer» Solution :The energy REQUIRED for various chemical activities needed for life is released by MITOCHONDRIA in the form of ATP. The body USES energy STORED in ATP for making new chemical compounds and for mechanical work. HENCE, ATP is called energy currency of the cell. 9. 9. Match the following properly:

Discussion

1219.	Question : In rainy season, while walking along road-side, Vivek asked his father, a botanist, whether some small green, non-flowering, leafy and thalloid plants, having little differentiation of body and growing along pavement are of any use to us. Vivek's father answered that these plants are small but they play very important role in maintaining green cover of the land (i) To which group these small thalloid, green, non-flowering plants belong ? (ii) In what way broyophytes are useful to us ? (iii) Which other groups of plants act ascolonizers of barren rocks and make and suitable for growth of higher plants ? Do these plants play some rol in pollution monitoring.
Answer» SOLUTION :(i) These are amphibians of plant kingdom and are known as Bryophytes (ii) These plants bind soil particles and thus prevent soil erosion. They also HELP in colonization of barren LANDS (iii) Lichens. Lichens are GOOD indicators of atomosphere of atmospheric QUANTITY.

Discussion

1220.	Question : At the time of low tide the beaches are exposed and variety of marine animals are seen. But they do not die. Marine biologists go on a study trip and learn about the structures of these animals. What values do you observe in marine biologists?
Answer» Solution :MARINE biologists are knowledge SEEKERS. They PREPARE the data BANK on the species that are seen. They SHOW values of sincerity and dedication towards their work.

Discussion

1221.	Question : In plants of which group are the seeds develop Inside an organ that is modified to become a fruit?
Answer» SOLUTION :ANGIOSPERMS

Discussion

1222.	Question : At the time of low tide the beaches are exposed and variety of marine animals are seen. But they do not die. Marine biologists go on a study trip and learn about the structures of these animals. What kind of animals must be surviving? How?
Answer» Solution :Animals that are provided with THICK shells such as crabs, bivalves, conches, etc. survive. They WITHDRAW their body parts inside the shell. Their gill regions remain moist due to sea WATER. They are ALSO TOLERANT for the changing salinity and temperature. Therefore they survive.

Discussion

1223.	Question :In plant cell, ....... is a non-living organelle. (cell membrane, cytoplasm, cell wall)
Answer» SOLUTION :CELL WALL

Discussion

1224.	Question : In plant cell, cytoplasm is a living matter.
Answer» ANSWER :1

Discussion

1225.	Question : Assertion : Urea is excreted out through the kidneys Reason : Urea is a toxic substance.
Answer» If both Assertion and Reason are TRUE and Reason is the correct EXPLANATION of Assertion If both Assertion and Reason are true but Reason is not the correct explanation of Assertion If Assertion is true but Reason is FALSE If both Assertion and Reason are false Answer :A

Discussion

1226.	Question : In phylum the have many pores in their body called……………. And ………………….. The evaluation of water.
Answer» SOLUTION :OSTIA, OSCULUM

Discussion

1227.	Question : Assertion : In both the sexes gonads perform dual function Reason : Gonads are also called primary sex organs
Answer» If both Assertion and REASON are TRUE and Reason is the correct explanation of Assertion If both Assertion and Reason are true but Reason is not the correct explanation of Assertion If Assertion is true but Reason is false If both Assertion and Reason are false Answer :A

Discussion

1228.	Question : Assertion : Haemoglobin contains iron.Reason : Iron deficiency leads to anaemia.
Answer» If both ASSERTION and Reason are TRUE and the Reason is the CORRECT explanation of Assertion. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. If Assertion is true but Reason is FALSE. If both Assertion and reason is false. ANSWER :A

Discussion

1229.	Question : In phylum Celentreat, the organisms exist in two different body namely a ……….. And a……………
Answer» SOLUTION :POLYP, MEDUSA

Discussion

1230.	Question : Assertion : AGMARK is a quality control agency. Reason : ISI is a symbol of quality.
Answer» If both Assertion and Reason are TRUE and the Reason is the CORRECT explanation of Assertion. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. If Assertion is true but Reason is FALSE. If both Assertion and reason is false. ANSWER :D

Discussion

1231.	Question :In phylum Mollusca, the body of organisms arc divided into head, thorax and abdomen
Answer» SOLUTION :In PHYLUM mollusca the body of ORGANISMS is divided into HEAD, muscular foot and visceral mass.

Discussion

1232.	Question : In phylum Arthropoda, the organisms have jointed legs.
Answer» ANSWER :TRUE

Discussion

1233.	Question : Ascaris, wuchereria, roundworm are the examples of phylum ............(Platyhelminthes, Nematoda, Annelida)
Answer» SOLUTION :NEMATODA

Discussion

1234.	Question :Arun was provided with two plants to study the external features of root and leaf. He found that root of one plant is tap root and leaf of other plant has parallel venation. The type of plants respectively are....... .
Answer» DICOT PLANT, MONOCOT plant monocot plant, dicot plant both are dicot PLANTS both are monocot plants SOLUTION :dicot plant, monocot plant

Discussion

1235.	Question : In mixed cropping….is grown as a subsdiary crop along with wheat as a main crop.
Answer» ANSWER :GRAM or MUSTARD

Discussion

1236.	Question : Artifical insemination is done in the case of (cows/bees) 2. Foot-and-mouth disease is caused by (bacteria /virus ). 3. A cow can yield milk ( throughout/at a certain time of ) the year 4. Desi hens by (fewer/more eggs)
Answer» SOLUTION :1. COWS 2. BACTERIA, 3. THROUGHOUT 4. fever

Discussion

1237.	Question : In many ferms compound leaves are found.
Answer» ANSWER :T

Discussion

1238.	Question : Arthropods use different organs for respiration. Which of the following correctly lists the organs with the organisms which use them?
Answer» GILLS (insects), book lungs (PRAWNS), tracheal system (spiders) Gills (SCORPIONS)book lungs (prawns)tracheal system (spiders) Gills (crustaceans), tracheal system (insects), book lungs (spiders) Gills (crustaceans), tracheal system (MILLIPEDES),book lungs (insects) ANSWER :C

Discussion

1239.	Question : In ………..manure, livestock excreta is not used. (compost, green, vermi-compost)
Answer» ANSWER :GREEN GRAM (MOONG)

Discussion

1240.	Question : Artifical insemination is applied to
Answer» COWS goals buffaloes all of the above Answer :D

Discussion

1241.	Question : Hypotonic solution, Hypertonic solution and Iosotonic solution.
Answer» SOLUTION :

Discussion

1242.	Question :Are these measures adequate ? If not, whatimprovements would you suggest ?
Answer» SOLUTION :The measures are inadequate as compared tothe amount of solid WASTE that is generated every DAY from each house. The improvements in this solid waste management can be done by REDUCING the load of solid wastes. This has to be done by separating solid wastes into degradable and non-degradable categories at HOME, offices,schools and every establishment.

Discussion

1243.	Question : Hybridisation.
Answer» SOLUTION :CROSSING betweengenetically dissimilar PLANTS is called HYBRIDISATION.

Discussion

1244.	Question : ………..are the main fooder crops. (Groundnut and castro, castor and linseed , oat and sudan grass)
Answer» ANSWER :OAT and SUDAN GRASS

Discussion

1245.	Question : Human heart is of ……. Shape.
Answer» ANSWER :CONICAL.

Discussion

1246.	Question : Are the answers to the above questions necessarily thesame or different ? Why
Answer» SOLUTION :To some extent they are the same, because of the conditions that are essential for good health are maintained, then automatically the chances of getting a disease will be minimized. But at the same time, we can SAY that they are different because being health or good health MEANS physical, mental and social well-being while being disease force means not SUFFERING from a PARTICULAR disease.

Discussion

1247.	Question : How would you take the sample to prepare temporary stained mount of human cheek cells ? Draw diagram of the structure you would see under the microscope.
Answer» Solution :For taking sample, we will scrap the INSIDE of our CHEEK with the help of TOOTH PICK or an ice-cream SPOON.

Discussion

1248.	Question : Are the answers to the above questions necessarily the same or different? Why?
Answer» Solution :Disease is basically problem with one individual, but health is a broader TERM that encompasses the entire community or society. Person MAY not be sick with a PARTICULAR disease but still his health may not be good. Similarly, there may not be a disease prevalent in a family but family.s social as well as mental conditions may not be healthy as the head of the family is a drunkard. The surroundings in which one stays also decide the health. The contamination. pollution and the prevalence of insect pests, etc. can deteriorate the health of the residents. Therefore, the answers to the TWO questions OUGHT to be different.

Discussion

1249.	Question : How would you explain 'endosmosis' and 'exosmosis' ?
Answer» Solution :Endosmosis is the entry of WATER MOLECULES into the cell through selectively permeable plasma membrane when SURROUNDED by hypotonic solution. Exosmosis is the EXIT of water molecules from the cells through selectively permeable plasma membrane when surrounded by HYPERTONIC solution.

Discussion

1250.	Question : Are Jelly fish and star fish similar to fishes? Give reasons.
Answer» SOLUTION :No. JELLY fish and starfish are not similar to FISHES because jelly fish belongs to Cnidarians. STAR fish belongs to Echinodermata. Fishes belongs to class PISCES.

Discussion

Explore topic-wise InterviewSolutions in .

Question :In the hierarchy of classification which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?

Question : Between which two groups of plants, do the Gymnosperms occupy their position?

Question : In the given photosynthetic experiment, what will happen to the leaf closed with black paper in starch test? Why?

Question : Becoming exposed to or infected with an infectious microbie does not necessarily can developing noticeable disease! Explain.

Question : In ....................., the food materials are kept inside a cold room in a temperature range of 23^(@)C to 30^(@)C .

Question : Balanoglossus is a ciliary feeder.

Question :In the figure of the earthworm given below, the horizontal lines throughout the body represent the ...

Question : In the cell , lipid molecules are synthesized by

Question : Bacterial diseases

Question : Bacteria residing in the large intestine produced ………….

Question : In the categories of classification, which level comes just after (below) the kingdom ?

Question : …………..bacteria can cause acene. (Streptococci, Staphylococci, Pneumococci).

Question :In the animals of which phylum, is the circulatory system met with for the first time?

Question : Average heart beat is ……

Question : Augusta Ada Lovelace was honored as the first programmer for programming________

Question : In sclerenchyma, the cell wall is

Question : In response to light, the Auxin……… the cells of a stem. So that the plant bends towards the light

Question : ATP is called energy currency of the cell.

Question : At the time of low tide the beaches are exposed and variety of marine animals are seen. But they do not die. Marine biologists go on a study trip and learn about the structures of these animals. What values do you observe in marine biologists?

Question : In plants of which group are the seeds develop Inside an organ that is modified to become a fruit?

Question : At the time of low tide the beaches are exposed and variety of marine animals are seen. But they do not die. Marine biologists go on a study trip and learn about the structures of these animals. What kind of animals must be surviving? How?

Question :In plant cell, ....... is a non-living organelle. (cell membrane, cytoplasm, cell wall)

Question : In plant cell, cytoplasm is a living matter.

Question : Assertion : Urea is excreted out through the kidneys Reason : Urea is a toxic substance.

Question : In phylum the have many pores in their body called……………. And ………………….. The evaluation of water.

Question : Assertion : In both the sexes gonads perform dual function Reason : Gonads are also called primary sex organs

Question : Assertion : Haemoglobin contains iron.Reason : Iron deficiency leads to anaemia.

Question : In phylum Celentreat, the organisms exist in two different body namely a ……….. And a……………

Question : Assertion : AGMARK is a quality control agency. Reason : ISI is a symbol of quality.

Question :In phylum Mollusca, the body of organisms arc divided into head, thorax and abdomen

Question : In phylum Arthropoda, the organisms have jointed legs.

Question : Ascaris, wuchereria, roundworm are the examples of phylum ............(Platyhelminthes, Nematoda, Annelida)

Question :Arun was provided with two plants to study the external features of root and leaf. He found that root of one plant is tap root and leaf of other plant has parallel venation. The type of plants respectively are....... .

Question : In mixed cropping….is grown as a subsdiary crop along with wheat as a main crop.

Question : Artifical insemination is done in the case of (cows/bees) 2. Foot-and-mouth disease is caused by (bacteria /virus ). 3. A cow can yield milk ( throughout/at a certain time of ) the year 4. Desi hens by (fewer/more eggs)

Question : In many ferms compound leaves are found.

Question : Arthropods use different organs for respiration. Which of the following correctly lists the organs with the organisms which use them?

Question : In ………..manure, livestock excreta is not used. (compost, green, vermi-compost)

Question : Artifical insemination is applied to

Question : Hypotonic solution, Hypertonic solution and Iosotonic solution.

Question :Are these measures adequate ? If not, whatimprovements would you suggest ?

Question : Hybridisation.

Question : ………..are the main fooder crops. (Groundnut and castro, castor and linseed , oat and sudan grass)

Question : Human heart is of ……. Shape.

Question : Are the answers to the above questions necessarily thesame or different ? Why

Question : How would you take the sample to prepare temporary stained mount of human cheek cells ? Draw diagram of the structure you would see under the microscope.

Question : Are the answers to the above questions necessarily the same or different? Why?

Question : How would you explain 'endosmosis' and 'exosmosis' ?

Question : Are Jelly fish and star fish similar to fishes? Give reasons.