22339 + Interview Questions in Biology in Class 11 Page 433 InterviewSolution

21601.	Question : A plant that grows for many years that flowers and set fruits for several season duringthe life span is called as …………………
Answer» geophytes annual biennial ephemerals Solution :geophytes

Discussion

21602.	Question : A plant shows thallus level of organization. It shows rhizoidsand is haploid. It needs water to complete its life cycle because the male gametes are motile. Can you identify the group to which it belongs?
Answer» SOLUTION :BRYOPHYTES

Discussion

21603.	Question : A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to
Answer» Pteridophytes Gymnosperms MONOCOTS Bryophytes Solution :• Bryophytes is such a group of plants in which gametophytic stage is haploid and has thallus. Motile male gametes - special reproduction structure are produced in Antheridia. • These gametes need thin layer of WATER by doing movements to REACH to female reproductive organ - ovary (Archegonia). •While DIVISION of labour is SEEN in pteridophytes, gymnosperms and monocots. Their plant body possesses higher type of body organization.

Discussion

21604.	Question : A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. It may belong to
Answer» PTERIDOPHYTES Gymnosperms Monocots BRYOPHYTES ANSWER :D

Discussion

21605.	Question : A plant showing reticulate venation and a woody stem is a
Answer» PTERIDOPHYTE GYMNOSPERM MONOCOT DICOT

Discussion

21606.	Question : A plant secretion that is a efficient preservative ………..
Answer» AGAR Agar Careegenin Amber Ergot ANSWER :C

Discussion

21607.	Question : A plant requires potassium mainly for?
Answer» SOLUTION :OPENING and CLOSING of STOMATA

Discussion

21608.	Question :A plant requires phosphorus for its …………………………
Answer» SOLUTION :CELL MEMBERS

Discussion

21609.	Question : A plant may have different names in different regions or the country of world. How do botanists solve this problem?
Answer» Solution :To solve this problem, botanists have devised the system of BINOMIAL nomenclature so that a particular species can have unique name for the purpose of scientific STUDY. ICBN ENSURES that such name has not been USED for any other organism. Each name has two components the generic name and the species name. This system of NAMING is called bionomical nomenclature given by Carolus Linnaeus.

Discussion

21610.	Question : A plant in your garden avoids photorespiratory losses , has improved water use efficiency , shows high rates of photosynthesis at hifh temperatures and has improved efficiency of nitrogen utilisation . In which of the following physiological groups would you assign this plant?
Answer» `C_(4)` CAM Nitrogen FIXER `C_(3)` SOLUTION :`C_(4)`

Discussion

21611.	Question : A plant leaf shows reticulate venation. What kind of roots would it have?
Answer» SOLUTION :TAP ROOT.

Discussion

21612.	Question : A plant if transpiring rapidly. Is it due to presence of root pressure?
Answer» SOLUTION :Such transpiring plant will not SHOW ROOT PRESSURE. Instead a negative pressure will be observed .

Discussion

21613.	Question : A plant has 24 chromosomes in microspore mother cell the number of chromosomes in its endosperm will be
Answer» 36 24 12 48 Answer :A

Discussion

21614.	Question : A plant having two genomes and four chromo somes is
Answer» OPHIOGLOSSUM HAPLOPAPPUS Pisum Allium ANSWER :B

Discussion

21615.	Question : A plant growing in a tree as epiphyte accumulates malic acid in dark and cells contains large storage vacuoles. Identify the type of pathway that takes place in this plant.
Answer» `C_(4)` PATHWAY Glycolate Metabolic pathway Di carboxylic ACID pathway CAM pathway Solution :CAM pathway

Discussion

21616.	Question :A plant cell when kept in a solution got plasmolysed. What was the natureof the solution.
Answer» SOLUTION : HYPERTONIC.

Discussion

21617.	Question : A plant cell when kept in a certain solution got plasmolysed. What was the nature of the solution ?
Answer» SOLUTION :The solution is HYPERTONIC.

Discussion

21618.	Question : A plant cell attains turgidity due to:
Answer» electrolysis exosmosis plasmolysis endosmosis

Discussion

21619.	Question : A plant cell is kept in a hypotonic solution. What will happen to the solute potential of this cell?
Answer» SOLUTION : It DECREASES.

Discussion

21620.	Question : A Pinus does not have
Answer» RESIN canals xylem TRACHEIDS ovuliferous SCALES TWO COTYLEDONS

Discussion

21621.	Question : A piece of wood having no vessels (trachea) must be belong to (A) Teak (B) Mango (C) Pine (D) Palm
Answer» Teak MANGO Pine Palm Solution :Pine It is a Gymnosperm. The PLANTS of this group does not possess VESSELS but instead of that they possess TRACHEIDS while Teak, Mango and Palm are angiospermous plant. In xylem of angiosperms vessels, tracheids, parenchymatous cells and xylem FIBRES are present.

Discussion

21622.	Question : A piece of chromatin with 40 H 4 proteins molecules contains _____number of
Answer» 5 10 40 20 Answer :D

Discussion

21623.	Question : A : Phycomycetes are generally called algal fungi. R: It is believed that phycomycetes have evolved from algae (A) A and R both are correct and R is correct explanation of A. (B) A and R are correct but R is not explanation of A. (C) A is correct and R is false. (D) A and R are false
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :A

Discussion

21624.	Question : A : Phylogenetic and natural classifications are similar. R : The organisms related evolutionarily are usually similar morphologically also
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :A

Discussion

21625.	Question : A phylloclade with one or two internodes only is called a ..............
Answer» SOLUTION :caldode

Discussion

21626.	Question : (a) Phycobilins - Proteinaceous pigment (b) Lycopene - Yellow colour (c) Lutein - Red pigment (d) Carotene - Vitamin C
Answer» SOLUTION :PHYCOBILINS - PROTEINACEOUS PIGMENT

Discussion

21627.	Question : A phospholipid molecule is amphipathic and produce two layers coming in contact with H_(2)O. The head of phospholipid molecule is
Answer» at an angle of `40^(@)` at the OUTER surface on the inner SIDE embedded in protein MOLECULES. ANSWER :B

Discussion

21628.	Question : A phosphoglyceride is always made up of
Answer» Only a SATURATED fatty ACID esterified to a GLYCEROL MOLECULE to which a phosphate group is also attached Only an UNSATURATED fatty acid esterified to a glycerol molecule to which a phosphate grouup is also attached A saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached A saturated or unsaturated fatty acid esterified to a phosphate group which is also attached to a glycerol molecule Answer :C

Discussion

21629.	Question : A phospholipid molecule has a head and two tails. Thetails are found :
Answer» at the surfaces of the MEMBRANE in the INTERIOR of the membrane SPANNING the membrane both (a) and (B) SOLUTION :in the interior of the membrane

Discussion

21630.	Question : (A) Petrifaction - Impression (B) Actual remains - Volcanic ash (C ) Tail in Baby - Atavism (D) Homologous Structures - Flippers of Dolphin
Answer» A only A and B B and C D only Answer :B

Discussion

21631.	Question : A person with swollen neck consults a doctor,Doctor advise to avoid iodized salt.Name his disorder.
Answer» SOLUTION :EXOPHTHALMIC GOITRE

Discussion

21632.	Question : A person with swollen neck consults a doctor,Doctor advise to avoid iodized salt State 3 features of the disease
Answer» Solution :1.The ENLARGEMENT of the thyroid GLAND 2.it causes the EYES to protrude 3.This disorder OCCURS more often in females.

Discussion

21633.	Question : A person with cirrhosis of the liver has lower than normal levels of plasma proteins and higher than normal GFR. Explain why a decrease in plasma protein would increase GFR.
Answer» SOLUTION :The net filtration pressure of 10 MMHG is responsible for the renal filtration. Net filtration Pressure = Glomerular hydrostatic pressure - (Colloidal OSMOTIC pressure + Capsular hydrostatic pressure). Therefore, when there is decrease in plasma proteins, the value of Colloidal osmotic pressure + Capsular hydrostatic pressure decreases. This CONTRIBUTES to the INCREASED net filtration pressure resulting in increase of GFR.

Discussion

21634.	Question : A person with blood group A has
Answer» ANTIGEN A and ANTIBODY B antigen B and antibody a both antibodies no antibody and no antigen Solution : antigen A and antibody b

Discussion

21635.	Question : A person with A -ve blood group is injured severly in an accident. His relatives with A +ve and B -ve blood groups were ready to donate blood for him. Infer the consequences if he receives blood from them.
Answer» SOLUTION :ANTIGEN and ANTIBODY interaction/Coagulation of blood/Clotting of blood/Agglutination/Incompatability/Death

Discussion

21636.	Question :A person who is on a long hunger strike and is surviving only on water will have:
Answer» LESS UREA in his urine More sodium in his urine Less AMINO ACIDS in his urine More glucose in his blood Answer :B

Discussion

21637.	Question : A person who is on a long hunger strike and is surviving only on water, will have________
Answer» Less amino acids in his urine More GLUCOSE in his BLOOD Less urea in his urine More sodium in his urine SOLUTION :Less urea in his urine

Discussion

21638.	Question : Apersonwhith normal tidal volumehasarespirtoryrate of 14 breaths per mintue. What will be the total tidal respiratory volumeper mintue ?
Answer» 3800 ml/mt 7000 ml/mt 14000 ml/mt 1300 ml/mt Answer :B

Discussion

21639.	Question : A person surffers punctures in his chest cavity in an accident, without any damage t the lungs, its effect could be
Answer» reduced breathing rate rapid INCREASE in breathing rate no change in respiration cessation of breathing. Solution :Punctures in a person's CHEST MAY lead to LOSS of PRESSURE gradient.

Discussion

21640.	Question : A person undergoing prolonged fasting his urine will be found to contain abnormal quantities of .....
Answer» Fats Amino ACID GLUCOSE KETONES SOLUTION :Ketones

Discussion

21641.	Question :A person suffering from a disease caused by Plasmodium, experiences recurring chills and fever at the time when
Answer» the sporozoites released from RBC s are being rapidly killed and broken down inside SPLEEN the trphozoites reach maximum growth and give out certain toxins the parasite after its rapid multiplication inside RBC s RUPTURES them releasing the merozoites & hemozoin the MICROGAMETOCYTES and macrogameto-cytes are being destroyed by the WBCs Answer :C

Discussion

21642.	Question : A person met with an accident with severe head Injury. He is taken to hospital, where doctors declared 'dead'. But his heart is functioning. Explain the amazing property of heart.
Answer» Solution :1. The type of heart in human is myogenic because the heart beat ORIGINATES from the muscles of the heart. 2. The NERVOUS and endocrine systems work together with paracrine SIGNALS (metabolic activity) to influence the diameter of the arterioles and alter the blood flow. 3. The neuronal control is achieved through autonomic nervous system (sympathetic and parasympathetic). 4. Sympathetic neurons release norepinephrine and adrenal medulla releases epinephrine. 5. The two horinones bind to `beta`-adrenergic receptors and increase the heart rate. 6. The parasympathctic neurons scomm acetylcholine that binds to muscarinic receptor and decreases the heart beat. 7. Vasopressin and ANGIOTENSIN II, involved in the regulation of the kidneys, results in vasoconstriction while natriuretic PEPTIDE promotes vasodilation. Vagus nerve is a parasympathetic nerve that supplies the atrium especially the SA and the AV nodes.

Discussion

21643.	Question : A person is undergoing prolonged fasting, his urine will contain abnormal quantities of
Answer» fats ketones amino acids glucose

Discussion

21644.	Question : A person is unable to sleep normally. He may not get proper secretion of ..............
Answer» Thyroxine Vasopression MELATONIN Oxytocin SOLUTION :Melatonin

Discussion

21645.	Question : A person is having problem with calcium and phosphorus metablism in his body which one of the following glands may not be functionoing properly?
Answer» Parotid Pancreas Adrenal cortes Parathyroid Solution :Parathyroid GLANDS LOCATED behind the thyroid gland, produce a hormone called parathormone. This hormone maintains calcium and PHOSPHORUS balance in the body. Thus, if a person is having PROBLEM with calcium and phosphorus metabloism in this means, his parathyroid glands are not functioningproperly.

Discussion

21646.	Question : A person having bothe antigen Aand antigen B on the surface of RNCs belongs to blood group
Answer» A B AB O Solution :AB

Discussion

21647.	Question : A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal.
Answer» Solution :(1) Digestion of roti (carbohydrates) : (a) Digestion of carbohydrates in oral cavity :In mouth chapati mixes with saliva. In saliva salivary Amylaze (ptylin) enzyme is present which CONVERTS starch of chapati into Maltose, Isomaltose and small dextrin (`alpha`-dextrin). 30% starch is hydrolysed in mouth. Starch `underset"pH 6-8"overset"Salivary amylase"to` Maltose + isomaltose + `alpha`-dextrin. (b) Digestion of carbohydrates in small intestine: From mouth to oesophagus and from there to stomach the path of half digested chapati is regulated by peristalsis (waves of alternate muscular contraction of oesphagus). The food is stored in stomach for 4-5 hours. There is no enzyme present in gastrine causing digestion of carbohydrates. This half digested food is now known as chyme. Following process is seen in intestine. (i) Process of pancreatic juice : The carbohydrate of chyme is hydrolysed into disachharide by pancreatic amylase. Polysachharide (starch) `overset"amylaze"to` Disachharide . (ii) The process of intestinal juice or succus entericus : Succus entericus possesses MALTASE, iso maltase, sucrase (invertase), lactase and a dextrin. These enzymes work on food and convert them into simple compounds like glucose, fructose or galactose. Maltose `overset"Maltase"to` Glucose +Glucose Isomaltose `overset"Isomaltase"to` Glucose + Glucose Sucrose `overset"Sucrase"to` Glucose + Fructose Lactose `overset"Lactase"to` Glucose + Galactose `alpha`-dextrin `overset(alpha- "Dextrinase")to` Glucose . (2) Digestion of protein : Proteins are made of amino acids, during its digestion protein decomposes and gets converted into amino acid. There is no enzyme present for digestion of protein in saliva so protein is digested in stomach. (a) Digestion of protein in stomach: Stomach generally stores food for 4-5 hours gastrin gland secretes gastric juice. It possesses HCI, inactive enzymes, pepsinogen and renin. Following processes are DONE in stomach : Pepsinogen (inactive) `overset"dil HCl"to` Pepsin Protein `overset"Pepsin"to` Peptones + PROTEOSES Prorenin (inactive) `overset"HCl"to` Renin (active) (b) Digestion of protein in small intestine : (i) Process of panereatic juice : Trypsinogen, chymotrypsinogen and procarboxy peptidase are associated with digestion of protein. Trypsinogen `overset"Enterokinase"to` TRYPSIN Proteins `overset"Trypsin"to` Dipeptide Chymotrypsinogen `overset"Trypsin"to` Chymotrypsin Peptones `overset"Chymotrypsin"to` Dipeptides Procarboxypeptidase `overset"Trypsin"to` Carboxypeptidase Proteoses `overset"Carboxypeptidase"to` Dipeptides (ii) The action of intestinal juice succus entericus (intestinal juice) possesses enzyme enterokinase, amino peptise and dipeptise. It shows following processes Peptides `overset"Amino peptidase"to` Amino acid Dipeptides `overset"Dipeptidase"to` Amino acid Megamolecules are converted into simple components. That is an end product of chapati and Dal which are absorbed by villies of intestine. Undigested food is removed as faeces.

Discussion

21648.	Question : Aperson attains a maximum of 4 feet height. What could be the reason for this?
Answer» Hypersecretion of somatotropic HORMONE Hypersecretion of ACTH HYPOSECRETION of TSH Hyposecretion of somatotropic hormone Solution : Hyposecretion of somatotropic hormone

Discussion

21649.	Question : A perennial shrub has compound leaves and solitary zygomorphic and epigynous flowers. Each flower reveals dichlamydeous condition with many stamens and multiple fruits with exalbumius seeds. What is the ratio of advanced and primitive characters in it.
Answer» `1:2` `2:3` `1:1` `3:2` ANSWER :C

Discussion

21650.	Question : A patient was advised to give his blood sample between 10.00 pm and 4.00 am for clinical analysis. Identify the parasite that might have infected him.
Answer» PLASMODIUM vivax Taenia solium Entamoeba histolytica Wuchereria bancrofti Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question : A plant that grows for many years that flowers and set fruits for several season duringthe life span is called as …………………

Question : A plant shows thallus level of organization. It shows rhizoidsand is haploid. It needs water to complete its life cycle because the male gametes are motile. Can you identify the group to which it belongs?

Question : A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to

Question : A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. It may belong to

Question : A plant showing reticulate venation and a woody stem is a

Question : A plant secretion that is a efficient preservative ………..

Question : A plant requires potassium mainly for?

Question :A plant requires phosphorus for its …………………………

Question : A plant may have different names in different regions or the country of world. How do botanists solve this problem?

Question : A plant in your garden avoids photorespiratory losses , has improved water use efficiency , shows high rates of photosynthesis at hifh temperatures and has improved efficiency of nitrogen utilisation . In which of the following physiological groups would you assign this plant?

Question : A plant leaf shows reticulate venation. What kind of roots would it have?

Question : A plant if transpiring rapidly. Is it due to presence of root pressure?

Question : A plant has 24 chromosomes in microspore mother cell the number of chromosomes in its endosperm will be

Question : A plant having two genomes and four chromo somes is

Question : A plant growing in a tree as epiphyte accumulates malic acid in dark and cells contains large storage vacuoles. Identify the type of pathway that takes place in this plant.

Question :A plant cell when kept in a solution got plasmolysed. What was the natureof the solution.

Question : A plant cell when kept in a certain solution got plasmolysed. What was the nature of the solution ?

Question : A plant cell attains turgidity due to:

Question : A plant cell is kept in a hypotonic solution. What will happen to the solute potential of this cell?

Question : A Pinus does not have

Question : A piece of wood having no vessels (trachea) must be belong to (A) Teak (B) Mango (C) Pine (D) Palm

Question : A piece of chromatin with 40 H 4 proteins molecules contains _____number of

Question : A : Phycomycetes are generally called algal fungi. R: It is believed that phycomycetes have evolved from algae (A) A and R both are correct and R is correct explanation of A. (B) A and R are correct but R is not explanation of A. (C) A is correct and R is false. (D) A and R are false

Question : A : Phylogenetic and natural classifications are similar. R : The organisms related evolutionarily are usually similar morphologically also

Question : A phylloclade with one or two internodes only is called a ..............

Question : (a) Phycobilins - Proteinaceous pigment (b) Lycopene - Yellow colour (c) Lutein - Red pigment (d) Carotene - Vitamin C

Question : A phospholipid molecule is amphipathic and produce two layers coming in contact with H_(2)O. The head of phospholipid molecule is

Question : A phosphoglyceride is always made up of

Question : A phospholipid molecule has a head and two tails. Thetails are found :

Question : (A) Petrifaction - Impression (B) Actual remains - Volcanic ash (C ) Tail in Baby - Atavism (D) Homologous Structures - Flippers of Dolphin

Question : A person with swollen neck consults a doctor,Doctor advise to avoid iodized salt.Name his disorder.

Question : A person with swollen neck consults a doctor,Doctor advise to avoid iodized salt State 3 features of the disease

Question : A person with cirrhosis of the liver has lower than normal levels of plasma proteins and higher than normal GFR. Explain why a decrease in plasma protein would increase GFR.

Question : A person with blood group A has

Question : A person with A -ve blood group is injured severly in an accident. His relatives with A +ve and B -ve blood groups were ready to donate blood for him. Infer the consequences if he receives blood from them.

Question :A person who is on a long hunger strike and is surviving only on water will have:

Question : A person who is on a long hunger strike and is surviving only on water, will have________

Question : Apersonwhith normal tidal volumehasarespirtoryrate of 14 breaths per mintue. What will be the total tidal respiratory volumeper mintue ?

Question : A person surffers punctures in his chest cavity in an accident, without any damage t the lungs, its effect could be

Question : A person undergoing prolonged fasting his urine will be found to contain abnormal quantities of .....

Question :A person suffering from a disease caused by Plasmodium, experiences recurring chills and fever at the time when

Question : A person met with an accident with severe head Injury. He is taken to hospital, where doctors declared 'dead'. But his heart is functioning. Explain the amazing property of heart.

Question : A person is undergoing prolonged fasting, his urine will contain abnormal quantities of

Question : A person is unable to sleep normally. He may not get proper secretion of ..............

Question : A person is having problem with calcium and phosphorus metablism in his body which one of the following glands may not be functionoing properly?

Question : A person having bothe antigen Aand antigen B on the surface of RNCs belongs to blood group

Question : A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal.

Question : Aperson attains a maximum of 4 feet height. What could be the reason for this?

Question : A perennial shrub has compound leaves and solitary zygomorphic and epigynous flowers. Each flower reveals dichlamydeous condition with many stamens and multiple fruits with exalbumius seeds. What is the ratio of advanced and primitive characters in it.

Question : A patient was advised to give his blood sample between 10.00 pm and 4.00 am for clinical analysis. Identify the parasite that might have infected him.