4951 + Interview Questions in Biology in Class 10 Page 41 InterviewSolution

2001.	Question :Seeds are called products of sexual reproduction because they
Answer» GIVE rise to new plants are formed by FUSION of gametes are formed by fusion of pollen tubes can survive for LONGER periods Answer :B

Discussion

2002.	Question : See the adjacent picture.Which type of pollination will occur in this? Why do you think so?
Answer» Solution :(1) Self pollination occurs if stamens and carpels matures at the same time. (2) If they MATURE at different times cross pollination occurs. Cross pollination occurs in this plant . (3) For cross pollination to occur the pollen grains are to be carried to from other plants BELONGING to the same species. (4) The mechanism of DISPERSAL of pollen grains from one plant is facilitated mostly by wind and insects. (5) Cross pollination is believed to be advantageous for the plant. (6) Bbcause the seeds produced by the flower will contain another source of GENETIC material which may contain genes which are advantageous to the survival of the seedlings.

Discussion

2003.	Question : Secretion of which glands makes transport and nutrition of sperms easier ?
Answer» Solution :The fluid secretion of PROSTATE gland and SEMINAL vesicles makes TRANSPORT and nutrition of sperms EASIER.

Discussion

2004.	Question : Secretion of the sex hormones starts at the puberty stage.
Answer» ANSWER :1

Discussion

2005.	Question : Secondary Consumers
Answer» SOLUTION :FROG, TIGER

Discussion

2006.	Question : Sea cucumbers are
Answer» scavengers predators parasites filter FEEDERS ANSWER :D

Discussion

2007.	Question : Scion is a term in relation to
Answer» LAYERING cutting grafting micropropagation Answer :C

Discussion

2008.	Question : Scientific name of organisms should be given
Answer» SPECIES genus Subspecies genus Species variety Genus species Answer :D

Discussion

2009.	Question : Schistosoma is known as
Answer» BLOOD FLUKE CHINESE LIVER fluke dog tapeworm lung fluke ANSWER :A

Discussion

2010.	Question : Sanjay is sitting in the exam hall. Before the start of the exam, he sweats a lot, with increased rate of heart beat. Why does this condition occur?
Answer» SOLUTION :This is DUE to the SECRETION of the hormone Adrenaline in Adrenal medulla of Adrenal gland.

Discussion

2011.	Question : 'Salk' vaccine is used for vaccination against
Answer» SMALL pox polio rabies measles Answer :B

Discussion

2012.	Question : Salivary amylase works at a pH of:
Answer» 7.4 4.2 6.8 10.4 Answer :C

Discussion

2013.	Question : Salivary amylase secreted by salivary glands is responsible for which eventin mouth ?
Answer» Break-down of protein in AMINO acid Break-down of fat in lipids Break-down of starch in SUGAR Both (b) and (c) Solution :Salivary amylase converts starch into sugar. PROTEINS are digested by pepsin and TRYPSIN while fats are digested by lipase.

Discussion

2014.	Question : Saliva has the enzyme
Answer» pepsin ptyalin trypsin rennin ANSWER :B

Discussion

2015.	Question : Salamander is a
Answer» annelid mollusc amphibian bird ANSWER :C

Discussion

2016.	Question : Sacrolemma is found over
Answer» heart skeletal MUSCLE fibre nerve fibre heart muscle Answer :B

Discussion

2017.	Question : What are sacred groves? What is their role in conservation?
Answer» Solution :(i) The forest conserved in the name of God and CONSIDERED to be sacred is called as sacred GROVE. (ii) Sacred groves are in fact .Sanctuaries.conserved by the society and not by the government forest department. (iii) As they have been conserved in the name of god, they have SPECIAL protection. (IV) These clusters of thick forests are present not only in Western Ghats of India but in the entire country. (v) More than 1300 sacred groves have been reported in India. (vi) They are called .Deorai.in local language and because of God, people do not cut the TREES. This helps in their conservation.

Discussion

2018.	Question : What are sacred groves ?
Answer» Solution :The forest conserved in the NAME of God and considered to be SACRED is CALLED sacred groves.

Discussion

2019.	Question : Sachin Tendulkar, a world famous name in cricket world who holds almost all batting records. His son Arjun hasn't such cricket skill. Like this, Amitabh Bachchan, a great actor in bollywood but his son Abhishek hasn't succeed like him. Arjun is short and Abhishek is tall. What you think about height ?
Answer» SOLUTION :Height is INHERITED from PARENTS. Sachin is not tall as Amitabh. So Arjun.s height is not as tall as Abhishek.

Discussion

2020.	Question : Sachs classified tissue system in plants into __________ types.
Answer» FIVE TYPES two types THREE types four types SOLUTION :three types

Discussion

2021.	Question : Sachin Tendulkar, a world famous name in cricket world who holds almost all batting records. His son Arjun hasn't such cricket skill. Like this, Amitabh Bachchan, a great actor in bollywood but his son Abhishek hasn't succeed like him. Which type of traits, you called batting, acting, etc. ?
Answer» SOLUTION :Batting, ACTING, ETC. are acquired TRAITS which are developcd by an individual during his life-time.

Discussion

2022.	Question : Sachin Tendulkar, a world famous name in cricket world who holds almost all batting records. His son Arjun hasn't such cricket skill. Like this, Amitabh Bachchan, a great actor in bollywood but his son Abhishek hasn't succeed like him. Is skill like batting or acting inherited ? Why or why not ?
Answer» SOLUTION :No, skill like BATTING or acting is not INHERITED because it is acquired TRAIT.

Discussion

2023.	Question :Russian scientist who proposed the theory of origin of life was
Answer» Oparin Miller Haldane Fox Answer :A

Discussion

2024.	Question : Rupturing of follicles and discharge of ova is known as
Answer» copulation conjugation ovulation oviposition Answer :C

Discussion

2025.	Question : Route taken by pollen tube for enetering ovule is
Answer» integument micropyle chalaza any of the above Answer :D

Discussion

2026.	Question : Rounded seeds (dominant trait) were crossed with wrinkled seeds recessive trait). (i) What type of seeds will be produced in F_(1) generation ? (ii) By self pollination F_(1) seeds, what percentage of seeds will be rounded shape in F_(2) generation ? Explain with diagram.
Answer» Solution :(i) All seeds of `F_(1)` GENERATION will have ROUND seeds. (II) In `F_(2)` generation `75%` seeds will be round. `{:("Diagram"),("ParentRoundWrinkled"),("RRrr"),("GametesR"),(F_(1)" GenerationRr(Round)"):}` `{:(F_(2)" generation","Round","Wrinkled"),(,"3","1"):}`

Discussion

2027.	Question : Roots in some gymnosperms have fungal or algalassociation. Give example, their names and role in the plants.
Answer» Solution :Pinus has fungal association to FORM MYCORRHIZA which helps in ABSORPTION of water and minerals. Cycas has algal association in coralloid ROOTS which are ASSOCIATED with `N_(2)` fixing cyanobacteria.

Discussion

2028.	Question :Root hairs are thin walled, slender extension of Parenchyma cells.
Answer» Solution :CORRECT Statement: Root HAIRS are THIN walled, slender extension of EPIDERMAL cell.

Discussion

2029.	Question : Roothairsare
Answer» CORTICAL CELL PROJECTION of EPIDERMAL cell unicellular both B and c Solution :projection of epidermal cell

Discussion

2030.	Question : Rings of cartilage are present in trachea. Why ?
Answer» Solution :From nostril, the air passes through pharynx into lungs via TRACHEA. INCOMPLETE C-shaped rings of cartilageare PRESENTIN the trachea which ENSURE thatthe air-passage does not collapse whenthere is no air in it.

Discussion

2031.	Question : Rickets and K washiorkor are
Answer» DEFICIENCY diseases hereditary diseases infection disease communicable disease Answer :A

Discussion

2032.	Question : Rice Research Institute is situated at
Answer» Trivandrum Cuttack Coimbatore Shimla ANSWER :B

Discussion

2033.	Question : Rice normally grows well in alluvial soil,but______ia a rice variey produced by mutation breeding that grow well in saline soil
Answer» SOLUTION :Atomita-2 RICE

Discussion

2034.	Question : Ribosomes of bacteria , mitochondria and chloroplasts are
Answer» 50 S 80 S 70 S 30 S Solution :N/A

Discussion

2035.	Question : Ribosomes are classified as per their
Answer» size weight sedimentation rate volume Solution :N/A

Discussion

2036.	Question : Ribosome was discovered by
Answer» SCHLEIDEN palade muller ochoa Solution :N/A

Discussion

2037.	Question : Rhizopus spreads rapidly on a slice of bread due to which factors (i) formation of round shaped sporangia. (ii) presence of tubular branched hyphae. (iii) availability of nutrients and moisture on bread slice. (iv) presence of large number of spores.
Answer» (i) and (iv) (ii) and (iii) (ii) and (iv) (iii) and (iv) SOLUTION :Spores of Rhizopus present in AIR germinate on a MOIST piece of bread and SPREAD rapidly on it.

Discussion

2038.	Question : Rh factor may be responsible for
Answer» TURNER's syndrome AIDS sickle CELL anaemia erythroblastosis foetalis Answer :D

Discussion

2039.	Question : Rh factor was discovered by
Answer» WILLIAM Harvey Landsteiner Robert Hook C. DE Duve ANSWER :B

Discussion

2040.	Question : Rh factor is named after
Answer» Drosophila a Monkey a Rat a MAN ANSWER :B

Discussion

2041.	Question : Retrovirus has the following as its genetic material
Answer» SINGLE STRANDED DNA double stranded DUPLEX DNA DNA-RNA hybrid RNA Answer :D

Discussion

2042.	Question : Retina is most sensitive at
Answer» OPTIC disc periphery FOVEA centralis macula lutea Answer :C

Discussion

2043.	Question :Restriction enzymes are isolated chiefly from
Answer» algae fungi protozoans procaryotes Answer :D

Discussion

2044.	Question : Restriction endonucleases cut the DNA molecule at specific positions known as_____.
Answer» SOLUTION :MOLECULAR SCISSORS

Discussion

2045.	Question : Restriction endonucleases are utilised in genetic engineering techniques as
Answer» molecular CEMENT for combining DNA BITS into long CHAINS molecular scalpels for cutting DNA at specific sites molecular scalpels for cutting DNA break up molecular BUILD up nucleotides in tandem Answer :B

Discussion

2046.	Question : ______refers to the changes in the environmental condition,that re detected by receptors present in the body.
Answer» SOLUTION :Stimulus refer to the CHANGES in the ENVIRONMENTAL condition, which are DETECTED by RECEPTORS.

Discussion

2047.	Question : Respiratory pigment present in the blood of a cockroach is
Answer» haemoglobin haemocyanin haemoerythrin None of these Answer :D

Discussion

2048.	Question : Respiratory enzymes are present in bacteria on
Answer» mitochondria Golgi complex plasma membrane endoplasmic RETICULUM ANSWER :C

Discussion

2049.	Question : Reproduction is essentially a phenomenon that is not for survival of an individual but for the stability of a species. Justify.
Answer» Solution :(a) Organisms NEED energy for survival which they obtain from life processes such as nutrition and respiration. (b) REPRODUCTION needs a lot of energy. (c) Genetic material is transferred from one generation to the next as a RESULT of reproduction through DNA copying. (d) DNA copying takes place with high constancy and considerable variations, that is, ADVANTAGES to the species for stability in the changing environment.

Discussion

2050.	Question : Reproduction is essentially a phenomenon that is not for survival of an individual but for continuation of a species. Justify.
Answer» Solution :For survival, an individual needs energy which it obtains from life processes such as nutrition and respiration. Reproduction does not provide energy for survival. INSTEAD, reproduction ensures transfer of genetic material from one generation to the next which HELPS in CONTINUATION of SPECIES. Hence, it is an important phenomenon for maintaining continuity of species.

Discussion

Explore topic-wise InterviewSolutions in .

Question :Seeds are called products of sexual reproduction because they

Question : See the adjacent picture.Which type of pollination will occur in this? Why do you think so?

Question : Secretion of which glands makes transport and nutrition of sperms easier ?

Question : Secretion of the sex hormones starts at the puberty stage.

Question : Secondary Consumers

Question : Sea cucumbers are

Question : Scion is a term in relation to

Question : Scientific name of organisms should be given

Question : Schistosoma is known as

Question : Sanjay is sitting in the exam hall. Before the start of the exam, he sweats a lot, with increased rate of heart beat. Why does this condition occur?

Question : 'Salk' vaccine is used for vaccination against

Question : Salivary amylase works at a pH of:

Question : Salivary amylase secreted by salivary glands is responsible for which eventin mouth ?

Question : Saliva has the enzyme

Question : Salamander is a

Question : Sacrolemma is found over

Question : What are sacred groves? What is their role in conservation?

Question : What are sacred groves ?

Question : Sachs classified tissue system in plants into __________ types.

Question :Russian scientist who proposed the theory of origin of life was

Question : Rupturing of follicles and discharge of ova is known as

Question : Route taken by pollen tube for enetering ovule is

Question : Rounded seeds (dominant trait) were crossed with wrinkled seeds recessive trait). (i) What type of seeds will be produced in F_(1) generation ? (ii) By self pollination F_(1) seeds, what percentage of seeds will be rounded shape in F_(2) generation ? Explain with diagram.

Question : Roots in some gymnosperms have fungal or algalassociation. Give example, their names and role in the plants.

Question :Root hairs are thin walled, slender extension of Parenchyma cells.

Question : Roothairsare

Question : Rings of cartilage are present in trachea. Why ?

Question : Rickets and K washiorkor are

Question : Rice Research Institute is situated at

Question : Rice normally grows well in alluvial soil,but______ia a rice variey produced by mutation breeding that grow well in saline soil

Question : Ribosomes of bacteria , mitochondria and chloroplasts are

Question : Ribosomes are classified as per their

Question : Ribosome was discovered by

Question : Rhizopus spreads rapidly on a slice of bread due to which factors (i) formation of round shaped sporangia. (ii) presence of tubular branched hyphae. (iii) availability of nutrients and moisture on bread slice. (iv) presence of large number of spores.

Question : Rh factor may be responsible for

Question : Rh factor was discovered by

Question : Rh factor is named after

Question : Retrovirus has the following as its genetic material

Question : Retina is most sensitive at

Question :Restriction enzymes are isolated chiefly from

Question : Restriction endonucleases cut the DNA molecule at specific positions known as_____.

Question : Restriction endonucleases are utilised in genetic engineering techniques as

Question : ______refers to the changes in the environmental condition,that re detected by receptors present in the body.

Question : Respiratory pigment present in the blood of a cockroach is

Question : Respiratory enzymes are present in bacteria on

Question : Reproduction is essentially a phenomenon that is not for survival of an individual but for the stability of a species. Justify.

Question : Reproduction is essentially a phenomenon that is not for survival of an individual but for continuation of a species. Justify.