4951 + Interview Questions in Biology in Class 10 Page 24 InterviewSolution

1151.	Question : The tricuspid valve occurs between the
Answer» RIGHT AURICLE and right ventricle pulmonary AORTA carotico-systemic aorta and LEFT ventricle left ventricle Answer :A

Discussion

1152.	Question : The transpiration in plants will be lowest
Answer» when there is HIGH HUMIDITY in the ATMO sphere there is excess of water in the cell environmental conditions are very dry high WIND velocity Answer :A

Discussion

1153.	Question : The transgenic animals are those that have
Answer» FOREIGN DNA in some of its cells foreign DNA in all its cells foreign RNA in all its cells both (a) and © Answer :B

Discussion

1154.	Question : The transfer of energy from organism to organism in a natural community establishes
Answer» food chains BIOLOGICAL CONTROL NATURAL BARRIERS all the above Answer :A

Discussion

1155.	Question : The total …………………… of the universe remains constant because it can neither be created nor destroyed.
Answer» ANSWER :ENERGY

Discussion

1156.	Question : The total number of bones in the body of man is
Answer» 205 206 216 636 Answer :B

Discussion

1157.	Question : The tissue respiration refers to
Answer» inspiration external respiration internal respiration expiration ANSWER :C

Discussion

1158.	Question : The thin long thread like structures consisting of two identical strands…………………
Answer» Hybrid Chromosomes Genes DNA and RNA Answer :B

Discussion

1159.	Question : Which theory states that life arose from pre-existing life. Explain.
Answer» ANSWER :BIOGENESIS

Discussion

1160.	Question : Fill in the blanks: (i) The degenerated and non-functional organs found in an organism are called______. (ii) The theory of natural selection for evolution was proposed by ____.
Answer» ANSWER :CHARLES DARWIN

Discussion

1161.	Question : The theory of idea embodies that life on Earth is a divine creation . . . . . . . . .
Answer» CHEMICAL REACTION SPECIAL CREATION spontaneous generation Biogenesis Answer :B

Discussion

1162.	Question : The theory of evolution of species by natural selection was given by
Answer» MENDEL DARWIN MORGAN Lamarck Answer :B

Discussion

1163.	Question : The theory of evolution indicates that :
Answer» man evolved from MONKEYS monkeys evolved from man man evolved from DINOSAURUS man and APES had a COMMON ancestor. Answer :D

Discussion

1164.	Question : The testes are abdominal in
Answer» ELEPHANT goat kangaroo rabbit Answer :A

Discussion

1165.	Question : The terms cistron, recon and muton were proposed by
Answer» Bateson J. Lederberg S.Benzer T.H.Morgan Answer :C

Discussion

1166.	Question : The term Silver Revolution is connected to,
Answer» Jute Milk Eggs Petroleum Answer :C

Discussion

1167.	Question : The term producer for plants is misnomer. Explain why?
Answer» SOLUTION :Plants convert the ENERGY of the Sun into food. They take the raw MATERIALS from the biosphere and energy of the Sun and prepare the food by a process known as PHOTOSYNTHESIS. In fact, plants only convert SOLAR energy into chemical energy and do not, in real sense, synthesise food.

Discussion

1168.	Question : The term parthenogenesis was coined by
Answer» Grobber Balfour Boveri Owen. Answer :D

Discussion

1169.	Question : The term 'nonessential amino acids' is applied to fatty acids that are
Answer» SYNTHESISED in the BODY water-soluble required by the body but not essential useless Answer :A

Discussion

1170.	Question :The term genome is used for
Answer» DIPLOID SET of CHROMOSOMES polyploid set of chromosomes triploid set of chromosomes HAPLOID set of chromosomes Answer :D

Discussion

1171.	Question : The term Ethnobotany was coined by. . . . . . . . . .
Answer» Khorana J.W. Harshberger Ronald Ross Hugo DE Vries Answer :B

Discussion

1172.	Question : The term Chromosomes was coined by
Answer» Johanssen Waldeyer Bender Flemming Solution :N/A

Discussion

1173.	Question : The temperature of scrotum remains …………………. below the body temperature.
Answer» ANSWER :`2-3^(@)C`

Discussion

1174.	Question : The tectorial membrane is found in
Answer» the EYE of frogs the eye of mammals the EAR of mammals the TONGUE of frogs and mammals Answer :C

Discussion

1175.	Question : The technique to harness the water energy is called ________.
Answer» HYDRO power electrical energy tidal energy hydraulic fracturing Solution :HYDROPOWER

Discussion

1176.	Question : The teacher had just finished the chapter on environment in her class X lecture. She then placed four types of carry bags on the table in the classroom. These were cloth carry bag, paper carry bag, polythenecarry bag and jute carry bag. The teacher asked Anushka to choose any two bags which she thinks are the most environment-friendly. Anushka thought for a while and then picked up cloth carry bag and jute carry bag. (a) Explain why, Anushka did not choose the polythene carry bag though it is long lasting and water-proof ? (b) What is the reason for not choosing the paper bag ? (c ) Why did Anushka choose only cotton cloth bag and jute bag ? (d) What values are displayed by Anushka in making her choices ?
Answer» Solution :(a) Anushka did not choose a polythene carry bag because polythene is a PLASTIC which is a non-biodegradable material. Polythene bags lie scattered here and there and cause a lot of pollution. It is also not possible to dispose of OLD polythene bags by burning because they produce extremely HARMFUL gases on burning. (b) Anushka did not choose the paper bag because though paper is biodegradable material but it is MADE from wood for which many forest trees have to be cut down regularly. So, Anushka did not choose paper bag to save trees by preventing deforestation. (c ) Anushka chose cloth bag and jute bag because cloth bag is made of cloth which comes from cotton crop grown in fields. Similarly, jute for making jute bag is obtained from jute crop grown in fields by the farmers. Since both cotton and jute are grown as crops in fields and they are biodegradable too, therefore, making of cloth bag and jute bag does not harm the environment in any way. (d) The values displayed by Anushka are (i) Awareness (or knowledge) of biodegradable and non-biodegradable materials, and (II) Concern for the environment.

Discussion

1177.	Question : The taxonomical aid(s) used for the identification of both plants and animals is /are
Answer» keys Museum Herbarium Both A and B Answer :D

Discussion

1178.	Question : The tail of a lizard is cut. One of the following statements is true regarding it.
Answer» The TAIL regrows The tail doesn't regrow A NEW BODY REGENERATE with the tail A new tail and a new body regenerate to both the CUT parts Answer :A

Discussion

1179.	Question : The synthesis and release of thyroxine from the thyroid gland is stimulated by
Answer» LH TSH ACTH FSH Answer :B

Discussion

1180.	Question : The synthesis of enzymes in the cell is under the control of ……………………………..
Answer» ANSWER :GENES

Discussion

1181.	Question : Blood vessels that supply blood to the cardiac muscles are ................
Answer» SOLUTION :CORONARY

Discussion

1182.	Question : The superiority of the hybrid obtained by cross breeding is called as ______
Answer» SOLUTION : HETEROSIS or HYBRID VIGOUR

Discussion

1183.	Question : The suffix 'S' used with the description of ribosomal units stands for
Answer» SOLUBILITY SURFACE area size sedimentation COEFFICIENT SOLUTION :N/A

Discussion

1184.	Question : Roots not only absorb fluid from soil, but returns a portion of their percullar secretions back into it. Who proved it from his experiments?
Answer» Solution :1) A Belgian scientist Jan Baptist Von Helmont (1648) conducted an experiment that continued for FIVE years . 2) Von Helmont took a small willow tree and planted it in a large pot with soil. 3) Before he did this, he CAREFULLY measured the mass of the DRY soil and mass of the tree. 4) He covered the soil with a lid so that NOTHING could fall on to the surface of the soil and add to its mass. 5) There were holes in the lid so that the tree could grow out of the soil and that air and water could reach the roots. 6) Von Helmont left the tree for five years, giving it only rain water to absorb. 7) At the end of five years he measured the mass of the tree and the mass of the drysoil for a second time. 8) The results of this expe f iment are shown below . 9) This experiment changed the BELIEF of hundreds of years . This is because Von Helmont arrived at a result that a) The substances needed for the growth of a plant do not come from the soil only . b) The plant grow because of the water it gets.

Discussion

1185.	Question : The study of interrelationship between living organisms and their environment is called
Answer» phytogeograpby ECOLOGY PHYTOSOCIOLOGY ECOSYSTEM ANSWER :B

Discussion

1186.	Question : Study of cancer .
Answer» SOLUTION :ONCOLOGY

Discussion

1187.	Question : The structures in a human that provide balance are located in the
Answer» OUTER ear middle ear inner ear eustachian tubes Answer :C

Discussion

1188.	Question : The stomata in angiosperms open and close due to
Answer» the PRESENCE of gases inside the leaves their genetic constitution turgour pressure of GUARD cells turgour pressure of subsidiary cells ANSWER :C

Discussion

1189.	Question : The start signal in mRNA for protein synthesis is,
Answer» AUG UAG GUA UGA Answer :A

Discussion

1190.	Question : The stam of fruit tree X fixed in soil is cut in a slanting way. The upper part of stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed ovet the rooted cut stem of tree X in such a way that their cut surfaces fit. together propery. While joining the two cut stems, care is taken to make sure taken to make sure that the layerZ of one cut stem is in contact wiht layer Z of the other cut stem. The joint of cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stem grow together and become one fruit tree producing leaves, flowers and frits. (a) What is the name of this method of producing plantsor trees ? (b) What name is givne to the cut stem of tree X having roots? (c) What name is given to the cut stem of tree Y which has no roots but has some leaves (d) Name the layer Z. (e) Why should the layer Z of one cut stem be in contact with the layer Z of the other cut steam ? (f) Name any four fruit trees which areusually bred by this technique. (g) State any one advantage of producing fruit tress by this technique
Answer» SOLUTION :N//A

Discussion

1191.	Question : The stage when plasmolysis just begins and the plasma lemma starts receding the cells walls is called
Answer» deplasmolysis plasmolysis incipient plasmolysis all of the above ANSWER :C

Discussion

1192.	Question : The spider webs are made up of,
Answer» KERATIN Myosin Glutelin Fibroin Answer :A

Discussion

1193.	Question : The sperm produces substances of enzymatic nature of sperm lysins. In mammals it is called
Answer» hyaluronidase androgamone HYALURONIC ACID cryanogamone Answer :A

Discussion

1194.	Question : The speed at which impulses are conducted increase with
Answer» increasing DIAMETER of the soma increasing diameter of the AXON increasing NUMBER of DENDRITES increasing branching of the dendrites Answer :B

Discussion

1195.	Question : The specific function of liver is
Answer» excretion digestion histolysis glycogenesis and GLYCOGENOLYSIS ANSWER :D

Discussion

1196.	Question : The species, which are in danger of extinction, are referred lo as
Answer» ENDANGERED SPECIES vulnerable species threatened species RARE species ANSWER :A

Discussion

1197.	Question : The species, which are in danger of extinction are ref en-ed to as
Answer» ENDANGERED SPECIES VULNERABLE species THREATENED species RARE species Answer :A

Discussion

1198.	Question : The special feature of bile juice is that it,
Answer» has no enzyme has AMYLASE CONTAINS lipase contains water Answer :A

Discussion

1199.	Question : The source of O_(2) liberated in photosynthesis
Answer» PHOTOSYNTHETIC enzyme carbohydrate PRESENT in leaf water carbon DIOXIDE ANSWER :C

Discussion

1200.	Question : The source of O_2 liberated in photosynthesis is _________ .
Answer» SOLUTION :BYPRODUCT

Discussion

Explore topic-wise InterviewSolutions in .

Question : The tricuspid valve occurs between the

Question : The transpiration in plants will be lowest

Question : The transgenic animals are those that have

Question : The transfer of energy from organism to organism in a natural community establishes

Question : The total …………………… of the universe remains constant because it can neither be created nor destroyed.

Question : The total number of bones in the body of man is

Question : The tissue respiration refers to

Question : The thin long thread like structures consisting of two identical strands…………………

Question : Which theory states that life arose from pre-existing life. Explain.

Question : Fill in the blanks: (i) The degenerated and non-functional organs found in an organism are called______. (ii) The theory of natural selection for evolution was proposed by ____.

Question : The theory of idea embodies that life on Earth is a divine creation . . . . . . . . .

Question : The theory of evolution of species by natural selection was given by

Question : The theory of evolution indicates that :

Question : The testes are abdominal in

Question : The terms cistron, recon and muton were proposed by

Question : The term Silver Revolution is connected to,

Question : The term producer for plants is misnomer. Explain why?

Question : The term parthenogenesis was coined by

Question : The term 'nonessential amino acids' is applied to fatty acids that are

Question :The term genome is used for

Question : The term Ethnobotany was coined by. . . . . . . . . .

Question : The term Chromosomes was coined by

Question : The temperature of scrotum remains …………………. below the body temperature.

Question : The tectorial membrane is found in

Question : The technique to harness the water energy is called ________.

Question : The taxonomical aid(s) used for the identification of both plants and animals is /are

Question : The tail of a lizard is cut. One of the following statements is true regarding it.

Question : The synthesis and release of thyroxine from the thyroid gland is stimulated by

Question : The synthesis of enzymes in the cell is under the control of ……………………………..

Question : Blood vessels that supply blood to the cardiac muscles are ................

Question : The superiority of the hybrid obtained by cross breeding is called as ______

Question : The suffix 'S' used with the description of ribosomal units stands for

Question : Roots not only absorb fluid from soil, but returns a portion of their percullar secretions back into it. Who proved it from his experiments?

Question : The study of interrelationship between living organisms and their environment is called

Question : Study of cancer .

Question : The structures in a human that provide balance are located in the

Question : The stomata in angiosperms open and close due to

Question : The start signal in mRNA for protein synthesis is,

Question : The stage when plasmolysis just begins and the plasma lemma starts receding the cells walls is called

Question : The spider webs are made up of,

Question : The sperm produces substances of enzymatic nature of sperm lysins. In mammals it is called

Question : The speed at which impulses are conducted increase with

Question : The specific function of liver is

Question : The species, which are in danger of extinction, are referred lo as

Question : The species, which are in danger of extinction are ref en-ed to as

Question : The special feature of bile juice is that it,

Question : The source of O_(2) liberated in photosynthesis

Question : The source of O_2 liberated in photosynthesis is _________ .

Question : Fill in the blanks: (i) The degenerated and non-functional organs found in an organism are called__. (ii) The theory of natural selection for evolution was proposed by .