22339 + Interview Questions in Biology in Class 11 Page 146 InterviewSolution

7251.	Question : What would happen of HCI is not secreted in the stomach?
Answer» Solution : The GASTRIC juice contains HCl and proenzymes. The proenzyme pepsinogen, on exposure to HCI eets converted into the active ENZYME pepsin which CONVERTS proteins into protecas and peptones (peptides). The HCl PROVIDES an acidio medium` (pH1.8)` which is optimum lix pepsin, kills bacteria and other harmful organisms and avoids putrifaction. So, if HCl is not secreted in STOMATCH, digestion of protein and destruction of harmful micro organisms will be affected.

Discussion

7252.	Question : What would happen if HCI were not secreted in the stomach ?
Answer» SOLUTION :HCL activates PEPSINOGEN, HELPS in digestion of protein. It DESTROYS bacteria/microorganisms entered by mouth in food. If HCl is not secreted then these works are not accomplished.

Discussion

7253.	Question : What would happen if bile is not secreted?
Answer» Solution :(i) No PROPER ALKALINE MEDIUM will be maintained is small intestine which will DECREASE the activity of pancreatic and intestinal enzymes. (II) No emulsification of fats occurs so the fats remain undigested and may appear in the faeces. (iii) Reduces the absorption of fats and fat-soluble vitamins.

Discussion

7254.	Question : What would happen if all the nitrogen fixing bacteria were completely destroyed?
Answer» SOLUTION :If there are present no bacteria on the roots of leguminous PLANTS, there will be no fixation of NITROGEN and the fertility of the soil will be decreased and these plants will BECOME nitrogen deficient.

Discussion

7255.	Question : What would happen if a plasmolysed cell is kept in pure water?
Answer» SOLUTION :The CELL will be deplasmolysed, i.e. it will COME under NORMAL STATE,

Discussion

7256.	Question : What would Earth be like without greenhouse effect?
Answer» Solution :The naturally occurring green house gases in the air, mainly carbon dioxide, methane and water vapour trap RADIATION from the SUN and act like a thermal blanket AROUND our planet earth. Without the greenhouse gases, the earth would have an average temperature of -18° c and be covered in ice. · The green house effect KEEPS the earth warm enough to SUSTAIN life.

Discussion

7257.	Question : What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?
Answer» 63 84 21 42 Answer :A

Discussion

7258.	Question : What would be the cardiac output of a person having 72 beats per minute and a stroke volume of 50 ml ?
Answer» 360 ML 3600 ml 7200 ml 5000 ml Solution :Cardiac OUTPUT = heart RATE `XX` stroke volume = 72/minute `xx` 50 ml = 3600 ml

Discussion

7259.	Question : What would be expected to happen if : You forget to add cytokinin to the culture medium.
Answer» SOLUTION :No SHOOT FORMATION.

Discussion

7260.	Question : What would happen if you forget to add cytokinin to the culture medium ?
Answer» Solution :In absence of cytokinins in culture medium, cells will not DEVELOP shoot buds. Due to loss of cytokinesis, even CELL division FAILS to occur and CALLUS may not be formed efficiently.

Discussion

7261.	Question : What would be expected to happen if GA_(3) is applied to rice seedlings
Answer» SOLUTION :RICE SEEDLINGS will ELONGATE RAPIDLY.

Discussion

7262.	Question : What would be expected to happen if dividing cells stop differentiating.
Answer» Solution :If DIVIDING cells STOP differentiating then it may LEAD to the formation of a mass of cells and may FORM tumour.

Discussion

7263.	Question : What would be expected to happen if : GA_3 is applied to rice seeding.
Answer» SOLUTION :‘Bakane’ (FOOLISH seedling DISEASE), elongation of axis.

Discussion

7264.	Question : What would be expected to happen if : A rotten fruit gets mixed with unripe fruits.
Answer» SOLUTION : RELEASE of ETHYLENE, RIPENING of other FRUITS.

Discussion

7265.	Question : What would be expected to happen if a rotton fruit gets mixed with unripe fruits.
Answer» SOLUTION :RIPENING activity of rotten fruit leads to production of ethylene. As a result, unripe fruits will RIPEN QUICKLY.

Discussion

7266.	Question : What would be expected to happen if : (a) GA_(3) is applied to rice seedlings (b) dividing cells stop differentiating (c) a rotten fruit gets mixed with unripe fruits (d) you forget to add cytokinin to the culture medium.
Answer» Solution :(a) If `GA_(3)` is applied to rice seedlings, then the rice seedlings will exhibit internode ELONGATION and increase in height. (b) If DIVIDING cells stop differentiating, then the plant organs such as leaves and stem will not be formed. The mass of undifferentiated cell is called callus. (c) If a ROTTEN fruit get mixed with unripe FRUITS, then the ethylene produced from the rotten fruit will hasten the ripening of the unripe fruits. (d) If you forget to add cytokinin to the culture medium, then cell division, growth and differentiation will not be OBSERVED.

Discussion

7267.	Question : Where will you look for the sporozoites of the malarial parasite?
Answer» Male SHARK - Claspers HORNE on pelvic fins Female Ascaris -SHARPLY curved posterior end Male frog- A copulatory PAD onthe first digit of the hind limb Female cockroach -Anal cerci ANSWER :A

Discussion

7268.	Question :What will you call a cell not having ER, Golgi body, mitochondria, nuclear membrane etc.?
Answer» SOLUTION : PROKARYOTIC CELL

Discussion

7269.	Question :What will happen to water potential when a solute is added to water ?
Answer» SOLUTION : WATER POTENTIAL will DECREASE.

Discussion

7270.	Question : Whatwill happen to the osmotic pressure when there is an increase in the concentration of solute?
Answer» SOLUTION :With increase in concentration of solute, osmotic PRESSURE will also increase.

Discussion

7271.	Question :Explain what will happen to a plant cell if it is kept in a solution having higher water potential
Answer» SOLUTION :Exosmosis will take place, i.e. CELL will BECOME FLACCID.

Discussion

7272.	Question : What will happen to a plant cell if it is kept in a solutinhaving higher water potential ?
Answer» SOLUTION :ENDOSMOSIS will OCCUR resultingh trugidity

Discussion

7273.	Question : What will happen to a cell placed in a solution of higher concentration ?
Answer» SOLUTION :EXOSMOSIS RESULTING PLASMOLYSIS

Discussion

7274.	Question : What will happen if the stretch receptors of the urinary bladder wall are totally removed?
Answer» URINE will not COLLECT in the bladder Micturition will CONTINUE Urine will continue to collect NORMALLY in the bladder There will be no micturition Answer :C

Discussion

7275.	Question :What will happen if the stretch receptors of the urinary bladder wall are totally removed?
Answer» micturition will CONTINUE URINE will continue to COLLECT NORMALLY in the bladder there will be no micturition urine will not collect in the bladder SOLUTION : there will be no micturition

Discussion

7276.	Question : What will happen if penicillin is a administered to a person without checking for sensitivity?
Answer» Solution :Sensitivity TEST is important before administering penicillin to a PERSON. (i) Hypersensitivity reaction is a major PROBLEM with the USE of penicillin resulting in nausea, volmiting, wheezing and ultimately cardiovascular collapse. (ii) This can be PREVENTED by checking the sensitivity reaction of the patient before administering the antibiotic.

Discussion

7277.	Question : What will happen if excess fertilizers are added to soil?
Answer» Solution :If excess FERTILIZERS are added to soil, exosmosis will take PLACE from the roots due to INCREASED CONCENTRATION of soil solution, ultimately, PLANT will wilt.

Discussion

7278.	Question : What will happen if HCl was secreted in the stomach?
Answer» SOLUTION :GASTRIC DIGESTION will not TAKE PLACE

Discussion

7279.	Question : What will happen if bile duct gets choked ?
Answer» FECES become DRY Acidic chyme will not be neutralised There will be little digestion in INTESTINE Little absorption of FAT will occur Solution :N/A

Discussion

7280.	Question : What will happen if an indoor plant is placed under fan and AC ?
Answer» Solution :Well, plants need heat and humidity and air conditioners remove both from your HOME. Every species of indoor plant is DIFFERENT, and each variety dependson different living conditions. Factors that affect your indoor plants include Brightness of light, Amount of water, Temperature, Humidity and DRAINAGE and potting. Your air conditioningsystem can easily affect some of these conditions. For example, drastic temperature changes in the room can affectcertainvarieties of indoor plant. Similarly, as the temperature of a room increases, the relative humidity in the air will FALL, which could quickly upset some potted plants, Indeed, many plants enjoy stable growing conditions, and the rapid changesthat an air conditionercan cause can easily cause problems. It may affect the growth of the plant and can causedeath.

Discussion

7281.	Question : What will happen if a flaccid cell is placed in hypotonic solution?
Answer» Plasmolysis Exosmosis Endosmosis None of these Answer :C

Discussion

7282.	Question : What will be the P_(O_(2))and P_(CO_(2))in the atmospheric air compared to those in the alveolar air?
Answer» <P>`P_(o_(2))` LESSER, `P_(co_(2))` higher `P_(o_(2))` higher , `P_(co_(2))` lesser `P_(o_(2))` higher, `P_(co_(2))` hogher `P_(o_(2))` lesser, `P_(co_(2))` lesser Answer :B

Discussion

7283.	Question : What will be the water potential of asolution having solutes with respect topure water?
Answer» SOLUTION :Solution with solutes has LOWER WATERPOTENTIAL with respect to WATER.

Discussion

7284.	Question : What will be the pO_2 and pCO_2in the atmospheric air compared to those in the alveolar air ?
Answer» `pO_2` LEASER, `pCO_2` HIGHER `pO_2` higher `pCO_2` leaser `pO_2` higher `pCO_2` higher `pO_2` leaser, `pCO_2` leaser Answer :B

Discussion

7285.	Question : What will be the direction of net osmotic movement of water if a solution 'A', enclosed in a semi permeable membrane, having an osmotic potential of - 30 ' bars and turgor pressure of d'5' bars is submerged in a solution 'B' with an osmotic potential of '-10 ' bars and '0' turgor pressure ?
Answer» EQUAL MOVEMENT in both DIRECTIONS B' to 'A' No movement A' to 'B' Answer :A::B

Discussion

7286.	Question : What was contribution of Virchow?
Answer» SOLUTION :Expanded the cell THEORY and PROPOSED that all cells ARISE from pre-existing cells.

Discussion

7287.	Question : What was added in 1987 as a pollutant to air (Prevention and Control of Pollution) Act, [originally passed in 1981]
Answer» RADIOACTIVE wastes CFCs ground LEVEL ozone noise Answer :D

Discussion

7288.	Question : What vessels carry blood to the kidneys? Is this blood arterial or venous?
Answer» Solution : RENAL artery CARRIES oxygenated (ARTERIAL) blood to the KIDNEY.

Discussion

7289.	Question : What use are phloem fibres put to ?
Answer» Solution :Phloem fibres of plants LIKE JUTE are USED for MAKING ropes.

Discussion

7290.	Question : What type of transpiration is possible in the xerophyte Opuntia ?
Answer» Stomatal Lenticular Cuticular All the above Answer :A

Discussion

7291.	Question : What type of sexual reproduction is seen in Paramecium ?
Answer» SOLUTION :CONJUGATION

Discussion

7292.	Question : What type of placentation is seen in the members of familyFabaceae ?
Answer» SOLUTION :MARGINAL

Discussion

7293.	Question : What type of ovary is found in family-Solanaceae ?
Answer» Solution :The ovary of solanaceae is BICARPELLARY, SYNCARPOUS, bilocular, superior, axile PLACENTATION with swollen placenta and SEPTUM is OBLIQUE.

Discussion

7294.	Question : What type of placenation is seen in sweet pea?
Answer» Basal Axile FREE CENTRAL MARGINAL ANSWER :D

Discussion

7295.	Question :What type of organisms are included in Kingdom Protista ?
Answer» SOLUTION :Diverse forms of PREDOMINANTLY water-dwelling,EUKARYOTIC unicellular micro-organisms.

Discussion

7296.	Question : What type of locomotory movements do you find in Euglenaand Paramecium respectively ?
Answer» SOLUTION :FLAGELLAR and CILIARY MOVEMENTS RESPECTIVELY.

Discussion

7297.	Question : What type of muscles are present in visceral organs ?
Answer» SOLUTION :UNSTRIATED MUSCLES.

Discussion

7298.	Question : What type of mouth parts do you observe in cockroach?
Answer» SOLUTION :CHEWING TYPE.

Discussion

7299.	Question : What type of lining is present in capillaries?
Answer» SOLUTION :ENDOTHELIUM

Discussion

7300.	Question : What type of lining is present in distal convoluted tubule (DCT)?
Answer» SOLUTION :CUBOIDAL EPITHELIAL CELLS.

Discussion

Explore topic-wise InterviewSolutions in .

Question : What would happen of HCI is not secreted in the stomach?

Question : What would happen if HCI were not secreted in the stomach ?

Question : What would happen if bile is not secreted?

Question : What would happen if all the nitrogen fixing bacteria were completely destroyed?

Question : What would happen if a plasmolysed cell is kept in pure water?

Question : What would Earth be like without greenhouse effect?

Question : What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

Question : What would be the cardiac output of a person having 72 beats per minute and a stroke volume of 50 ml ?

Question : What would be expected to happen if : You forget to add cytokinin to the culture medium.

Question : What would happen if you forget to add cytokinin to the culture medium ?

Question : What would be expected to happen if GA_(3) is applied to rice seedlings

Question : What would be expected to happen if dividing cells stop differentiating.

Question : What would be expected to happen if : GA_3 is applied to rice seeding.

Question : What would be expected to happen if : A rotten fruit gets mixed with unripe fruits.

Question : What would be expected to happen if a rotton fruit gets mixed with unripe fruits.

Question : What would be expected to happen if : (a) GA_(3) is applied to rice seedlings (b) dividing cells stop differentiating (c) a rotten fruit gets mixed with unripe fruits (d) you forget to add cytokinin to the culture medium.

Question : Where will you look for the sporozoites of the malarial parasite?

Question :What will you call a cell not having ER, Golgi body, mitochondria, nuclear membrane etc.?

Question :What will happen to water potential when a solute is added to water ?

Question : Whatwill happen to the osmotic pressure when there is an increase in the concentration of solute?

Question :Explain what will happen to a plant cell if it is kept in a solution having higher water potential

Question : What will happen to a plant cell if it is kept in a solutinhaving higher water potential ?

Question : What will happen to a cell placed in a solution of higher concentration ?

Question : What will happen if the stretch receptors of the urinary bladder wall are totally removed?

Question :What will happen if the stretch receptors of the urinary bladder wall are totally removed?

Question : What will happen if penicillin is a administered to a person without checking for sensitivity?

Question : What will happen if excess fertilizers are added to soil?

Question : What will happen if HCl was secreted in the stomach?

Question : What will happen if bile duct gets choked ?

Question : What will happen if an indoor plant is placed under fan and AC ?

Question : What will happen if a flaccid cell is placed in hypotonic solution?

Question : What will be the P_(O_(2))and P_(CO_(2))in the atmospheric air compared to those in the alveolar air?

Question : What will be the water potential of asolution having solutes with respect topure water?

Question : What will be the pO_2 and pCO_2in the atmospheric air compared to those in the alveolar air ?

Question : What was contribution of Virchow?

Question : What was added in 1987 as a pollutant to air (Prevention and Control of Pollution) Act, [originally passed in 1981]

Question : What vessels carry blood to the kidneys? Is this blood arterial or venous?

Question : What use are phloem fibres put to ?

Question : What type of transpiration is possible in the xerophyte Opuntia ?

Question : What type of sexual reproduction is seen in Paramecium ?

Question : What type of placentation is seen in the members of familyFabaceae ?

Question : What type of ovary is found in family-Solanaceae ?

Question : What type of placenation is seen in sweet pea?

Question :What type of organisms are included in Kingdom Protista ?

Question : What type of locomotory movements do you find in Euglenaand Paramecium respectively ?

Question : What type of muscles are present in visceral organs ?

Question : What type of mouth parts do you observe in cockroach?

Question : What type of lining is present in capillaries?

Question : What type of lining is present in distal convoluted tubule (DCT)?