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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Bubbles of oxygenGreenwaterplantSnailАB(b) Explain the physiological process as mentioned abovein (a).(c) What is the purpose of keeping a snail in test-tube'B' ?(d) Why does test-tube 'B' have more bubbles ofoxygen ?(e) Give an example of a water plant that can be used inthe above experiment. hydoilla |
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Answer» Answer: Good morning DEAR friend ☺️❤️ Explanation: |
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| 2. |
155. The stain used to visualise mitochondria is(a) fast green(b) safranın(c) acetocarmine(d) janus green |
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| 3. |
66. The digestive juice without enzymes-A) Glastric juice B) Pancreatic juiceo intestinal juiceB Bile juice |
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Answer» Answer: bile juice is correct |
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| 4. |
Which is the first step involved in the separation of a mixture of sand , common salt and ammonium chloride?(1 Point)Magnetic separationSublimationChromatographySedimentation and Decantation |
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Answer» sublimation Explanation: |
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| 5. |
What is autolysis(a) Self-replication(b) Self-digestion(c) Self-food producer(d) Food decomposer |
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Answer» Answer: |
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| 6. |
Each ejaculate of a man contains about how many Sperms?a.200 b. 2000 c. 200,000 d. 200,000,000 |
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Answer»
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| 7. |
Mitochondria are the sites ofrespiration in the cell. They oxidizecarbohydrates and fats present inthe cell to produce carbon dioxide,water and a lot of energy. Theenergy so released is stored in theform of ATP molecules. Sincemitochondria in the cell are used tosynthesize energy so, they are alsocalled: |
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Answer» POWERHOUSE of the CELL |
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| 8. |
Which one of the following is not present in plasma membraneA) PhospholipidsB) AlbuminsC) OligosaccharidesD) Spectrins |
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Answer» ANSEWR is no.1 phospholipids |
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| 9. |
19.Cells in the meristematic tissues are :i) small and have thin cell wallii) living with prominent nucleus and abundant cytoplasmiii) compactly arranged without intercellular spacesiv) continuously dividing cellsA) i and ivB) i, ii and ivC) only ivD)i,ii,iii and iv |
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Answer» Explanation: THANK you |
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| 10. |
Which statement best describes ecological succession?a) is always caused by human intervention.b) It occurs after a disturbance.c) It never occurs in a predictable pattern.d) It is a series of rapid changes in an ecosystem |
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Answer» Answer: The statement which BEST describes about ecological succession is that the one which states that It is a SERIES of 'rapid CHANGES' in an ecosystem. Explanation: 'Ecological Succession' refers to the series of changes which happens in an ecosystem as time passes..... please mark as BRAINLIEST. |
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| 11. |
The accessory component produced during photosynthesis-i. O2 ii. Glucose iii. NADP iv. All of them |
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Answer» Answer: option II Glucose Explanation: mark as the BRAINLIEST ANSWERS and FOLLOW me |
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| 12. |
THE DISEASE KALA AZAR IS CAUSED BY A MICRO ORGANISM KNOWN AS :-(A) planar.ia(B) leech.(C) leishmania.(D) plasmoodium . |
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Answer» (D) PLASMOODIUM WRITE answer |
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| 13. |
3. Exosmosis occurs in-i. Hypotonic solution ii. Hypertonic solution iii. Both a and b iv. None of them |
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Answer» Exosmosis OCCURS in- i. Hypotonic solution II. HYPERTONIC solution iii. Both a and B iv. None of them ➡Exosmosis occurs in Hypertonic solution. What is Exosmosis? Exosmosis is the MOVEMENT of water outside the cells when a cell is placed in a hypertonic solution. The cell becomes flaccid by the movement of water outside. |
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| 14. |
Which of the following type of yeast is used to absorb toxins released during production of palm oil? *1 pointWhich of the following type of yeast is used to absorb toxins released during production of palm oil? *1 point |
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Answer» Answer: What was used before palm oil? PETROCHEMICALS and animal fats were used, so replacing these OPTIONS with palm oil was the most ETHICAL CHOICE at the time. Palm oil has a long carbon chain of fatty acids which makes it easy to manufacture derivatives for personal care and cleaning product |
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| 15. |
Which one is the trace element in plants?i. C ii. N iii. B iv. O |
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Answer» Answer: 3 >b Explanation: mark me BRAINLIST and follow me |
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| 16. |
Which one is a semi permeable membrane?i. Filter paper ii. Plant cell wall iii. Plasma membrane |
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Answer» Answer: |
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| 17. |
Cells in the meristematic tissues are :i) small and have thin cell wallii) living with prominent nucleus and abundant cytoplasmiii) compactly arranged without intercellular spacesiv) continuously dividing cellsA) i and ivB) i, ii and ivC) only ivD) i, ii, iii and iv |
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| 18. |
C. SHORT ANSWER TYPE1. What happens to the energy liberated in respiration ?2. Why is it usually difficult to demonstrate respirationin green plants ? |
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Answer» 1. The energy liberated during RESPIRATION is utilised for carrying out various life processes. Some of the energy liberated during the breakdown of 03 glucose molecules, is in the FORM of HEAT, but a large part of of it is converted into chemical energy Called Adinosine triphosphate ( ATP) . 2. Evolution of CO2 is an indicator to demonstrate respiration in living organisms. CO2 produced during respiration in PLANTS gets utilized during photosynthesis and thus, there is no evolution of CO2. Therefore, it is difficult to demonstrate respiration in green plants as there is no evolution of CO2 during day time. HOPE IT HELPS U.. PLZZ MARK AS A BRAINLISTS.. |
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| 19. |
Striated muscles are:a) Multinucleate and unbranched b)Uninucleate and spindle shaped c)Uninucleate and branched d)Multinucleate and branched |
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Answer» Answer is A i. E., MULTINUCLEATE and UNBRANCHED. |
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| 20. |
18.Which types of tissues are more common in plants ?A) Tissues with living cellsB) Tissues with semi living cellsC) Tissues with dead cellsD) Tissues with living and semi living cells. |
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| 21. |
Which types of tissues are more common in plants ?A) Tissues with living cellsB) Tissues with semi living cellsC) Tissues with dead cellsD) Tissues with living and semi living cell. |
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Answer» Answer: |
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| 22. |
I· A baby is not able to tell her/his caretakers that she/he issick. What would help us to find out(a) that the baby is sick?(b) what is the sickness? |
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| 23. |
4. The most common type of ground tissue isA) epidermisB) collenchymaC) sclerenchymaD) parenchyma |
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| 24. |
•AQUEOS solution d rodicum coride salonsulphate & Calcium chloride are tollten in thereparate test tubes. Usina avue as varSodium sulphate |
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Answer» Explanation: When we REACT Barium Chloride and Sodium Chloride Or Barium Chloride and Calcium chloride, no CHANGES take place as there is no exchange of ion (Cl-). When we react Barium chloride with Sodium Sulphate, exchange of ions takes place. It form an insoluble PRECIPITATE (BaSO4). BaCl2 + NaSO4 ---> BaSO4 + NaCl |
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| 25. |
1. Name the following: () Neurotransmitter that conducts nerve impulsethrough synapse.(ii) Part of brain that maintains balance.(iii) Part of nervous system that acts violently duringemergency(iv) lons responsible for the conduction of nerveimpulse.(V) A neurotransmitter stored at the terminal end ofthe axon.[ICSE 2008](vi) The biological term given to the protectivemembranes of the brain.[ICSE 2009](vii) The parts of human brain concerned with(a) seat of memory (b) coordinates muscularactivity(ICSE 2012](viii) Part of brain associated with memory.[ICSE 2014](ix) The part of the brain that carries impulses fromone hemisphere of the cerebellum to the other.[ICSE 2016] |
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Answer» sorry for such a long question I didn't have time Explanation: Hope some other GUYS would HELP U sorry because my classes are going on |
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| 26. |
Identify corect statement from the following []î) A hypothesis isa possible answer that can betestedii, variables are the factors that can effect the outcomesof the Investigationli, Always hypothesis will be true .if hypothesis Is Incorrecttest canbe done with othe variablesoptions 1 a,c,d 2a,b,d,3b,c,d4a,b,c,d, |
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Answer» HYPOTHESIS is a POSSIBLE answer that can be tested Explanation: |
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| 27. |
Thin walled and loosely packed cells are present in :A) collenchyma B) chlorenchyma C) aerenchyma D)both B and C |
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Answer» D) both in CHLORENCHYMA and AERENCHYMA |
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| 28. |
AG 117:221. ਹਰਪ੍ਰੀਤ ਸਿੰਘ ਪੰਜਾਬ ਦਾ ਵਸਨੀਕ ਹੈ।ਅਪ੍ਰੈਲ ਤੋਂਕਣਕ ਦੀ ਕਟਾਈ ਕਰਨ ਤੋਂ ਬਾਅਦ ਵਿਹਲਾ ਹੋ ਕੇਆਪਣੇ ਦੋਸਤ ਨਾਲ ਮੁੰਬਈ ਘੁੰਮਣ ਗਿਆ।ਉਸਨੇਦੇਖਿਆ, ਉੱਥੇ ਕੁਝ ਲੋਕ ਕਿਸ਼ਤੀਆਂ ਵਿੱਚ ਬੈਠ ਕੇ,ਸਮੁੰਦਰ ਵਿੱਚ ਜਾਲ ਸੁੱਟ ਕੇ ਕੁਝ ਕੱਢ ਰਹੇ ਸਨ। ਦੱਸੋ,ਉਹ ਕਿਹੜੀ ਕਿਰਿਆ ਕਰ ਰਹੇ ਸਨ? |
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Answer» what??? what it is ????? ????????????? ???????????? |
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| 29. |
-32. Two solutions have pH respectively equal to 2 and 6. Which solution is more aca solution?31. What is the nature of a solution whose pH is 7?33.What is the pH value of human blood?16hnd what type of cor |
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Answer» GOOD morning dear friend ☺️❤️ GOD bless you Explanation: have a great day ☺️❤️ God bless you stay home stay HEALTHY ☺️❤️ |
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| 30. |
A phylogenetic classification is based on:(A) external features alone.(B) floral characters alone.(C) origin and relationship of plant or animal group.(D) none of the above. |
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Answer» Answer: c |
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| 31. |
A group of cells similar in structure, and performing similar functions is calledA) tissueC) cellsD) organ systemB) organ |
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Answer» D) ORGAN system. plz MARK me as brainliest |
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| 32. |
2020. Learn MoreB +5 ptsਪੰਜਾਬ ਦੀ ਧਰਤੀ 'ਤੇ ਰਚਿਆ ਗਿਆ ਸਭਤੋਂ ਪੁਰਾਣਾ ਵੇਦ ਕਿਹੜਾ ਹੈ ?*ਉ) ਰਿਗਵੇਦਅ) ਸਾਮਵੇਦ) ਯਜੁਰਵੇਦ |
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Answer» Answer: Argh! Explanation: I BEG you......... |
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| 33. |
1Estimate the net charge of a peptide Ser-Glu-Pro-Ile-Met-Ala-Pro-Val-Glu-Tyr-Pro-Lys at pH 7.0 and at pH 12.0.Typical ranges observed for pk, values of groups in protein: a-carboxyl group (3.5-4.0), side chain carboxylgroup (4.0-4.8), a-amino group (8.0-9.0), phenolic group (9.5-10.5), side chain amino group (9.8-10.4).a. -1, -4b. -4,-1C. -4,-4d. -1, -1 |
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Answer» Answer: |
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| 34. |
An individual female with Down's syndrome is best represented by(A) 44 autosomès + XXYB) 44 autosomes + XYY(C) 45 autosomes + XX(D) 45 autosomes + XY |
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Answer» c Explanation: down syndrome is TRISOMY of 21st chromosome which make autosomes 45 |
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| 35. |
Identify the past and name the following structurea)the undefined nuclear region of prokaryoticalb) site of energy release inside the cell .c)which structure present in the nucleat region ofliving cell bear genes? |
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Answer» KEDE kede Explanation: keda keda keda |
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| 36. |
In an experiment, Mendel obtained 1014 plants out ofwhich 787 were having roundseeds and 227 had wrinkled seeds in F, generation.a) What is the approximate ratio obtained in F2 generation?b) Under which law do you find this ratio?c) Why is this law so called? |
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Answer» a= 3:1 b=law of SEGREGATION c=law of INDEPENDENT assortment plzzz mark as BRAINLIST and follow me |
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| 37. |
Question 6Which one of the following is not a common dosage formfor fentanyl?a) Vaporizerb) LollipopO c) Transdermal patchd) IV infusionQuestion 7 |
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| 38. |
Man is a social animal. He cannot live alone. No person can be happy without havingsincere friends. But selfish peerson fail to make real friendship. Because to git love, you mustgive love in return. |
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| 39. |
Give the name ofg) Neurotransmitter hat conducts nerve impulse through synapse.h) Part of brain that maintains balance.i) Part of brain associated with memory.i) A plant in which siomata are sunken. |
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Answer» Answer: h)cerebellum I)the HIPPOCAMPUS, the neo-cortex and the amygdala. I)xerophytes Explanation: HOPE it'll be helpful |
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| 40. |
15 Universal recipient.y Give the name of .....d) Process used to remove starch from leaves.g) Neurotransmitter hat conducts nerve impulse through synapse.h) Part of brain that maintains balance.i) Part of brain associated with memory.i) A plant in which stomata are sunken. |
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Answer» Answer: the answer is (I don't know) but PLEASE MARK me as BRAINLIEST as I am new on this APP |
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| 41. |
Question 7Which one of the following is an example of the chemicalmodification of an active pharmaceutical ingredient?O a) Converting a crystalline API into an amorphous formOb) Combining a basic API with citric acid to produce thecitrate salt of the APIO c) Mixing a poorly soluble API with water to produce asuspensiond) Mixing a soluble API with water to produce a solution |
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| 42. |
3.Prepare a pamphlet including the major measures to be takento prevent rat fever.What is the immortance of vaccination in preventing |
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Answer» Answer: Explanation: f you are bitten or scratched, immediately clean the wound with soap and ... If you were bitten at WORK, make sure to document the bite and report the ... It is important to remember that contaminated FOOD and drink sources MAY LOOK and SMELL normal. |
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| 43. |
The majority of carbon dioxide produced by our body cells is transported to the lungs:Select one:a. as bicarbonatesb. as carbonatesc. dissolved in the bloodd. attached to hemoglobin |
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Answer» Answer: Explanation: Carbon dioxide molecules are transported in the blood from body tissues to the lungs by ONE of three methods: dissolution directly into the blood, binding to hemoglobin, or carried as a bicarbonate ion. Several properties of carbon dioxide in the blood affect its transport. First, carbon dioxide is more soluble in blood than oxygen. About 5 to 7 percent of all carbon dioxide is dissolved in the plasma. Second, carbon dioxide can bind to plasma proteins or can enter red blood cells and bind to hemoglobin. This form transports about 10 percent of the carbon dioxide. When carbon dioxide binds to hemoglobin, a molecule called carbaminohemoglobin is FORMED. Binding of carbon dioxide to hemoglobin is reversible. Therefore, when it reaches the lungs, the carbon dioxide can FREELY dissociate from the hemoglobin and be expelled from the body. Third, the majority of carbon dioxide molecules (85 percent) are carried as part of the bicarbonate buffer system. In this system, carbon dioxide diffuses into the red blood cells. Carbonic anhydrase (CA) within the red blood cells quickly converts the carbon dioxide into carbonic acid (H2CO3). Carbonic acid is an unstable intermediate molecule that immediately dissociates into bicarbonate ions ( HCO − 3 ) and hydrogen (H+) ions. Since carbon dioxide is quickly converted into bicarbonate ions, this reaction allows for the continued uptake of carbon dioxide into the blood down its concentration gradient. It also results in the production of H+ions. If too much H+ is produced, it can alter blood pH. However, hemoglobin binds to the free H+ ions and thus limits shifts in pH. The newly synthesized bicarbonate ion is transported out of the red blood cell into the liquid component of the blood in exchange for a chloride ion (Cl−); this is called the chloride shift. When the blood reaches the lungs, the bicarbonate ion is transported back into the red blood cell in exchange for the chloride ion. The H+ ion dissociates from the hemoglobin and binds to the bicarbonate ion. This produces the carbonic acid intermediate, which is converted back into carbon dioxide through the enzymatic action of CA. The carbon dioxide produced is expelled through the lungs during exhalation. CO 2 + H 2 O ⟷ H 2 CO 3 ( carbonic acid )
⟷ HCO 3 + H + ( bicarbonate )
The benefit of the bicarbonate buffer system is that carbon dioxide is “soaked up” into the blood with little change to the pH of the system. This is important because it takes only a small change in the overall pH of the body for severe injury or death to result. The presence of this bicarbonate buffer system also allows for people to travel and live at high ALTITUDES: When the partial pressure of oxygen and carbon dioxide change at high altitudes, the bicarbonate buffer system adjusts to regulate carbon dioxide while maintaining the correct pH in the body. |
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| 44. |
What would be the phenotypic and genotypic ratio for the progeny of the following hypothetical crossesa) Rr X RRb) Rr X rrWhere, R is for red flower colour and r is for white flower colour. |
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Answer» homozygous plant contains either of the FOLLOWING alleles for SEED shape: (RR) or (rr). The (RR) genotype is homozygous DOMINANT and the (rr) genotype is homozygous recessive for seed shape. In the image above, a monohybrid cross is performed between plants that are HETEROZYGOUS for round seed shape. |
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| 45. |
Which of the following is true about the amino acids that make up a transmembrane protein?Choose 1 answer:AAmino acids with polar side groups are in contact with the fatty acid region of the cell membrane.BAmino acids with nonpolar side groups are in contact with the phosphate region of the cell membrane.CAmino acids with charged side groups are in contact with the fatty acid region of the cell membrane.DAmino acids with nonpolar side groups are in contact with the fatty acid region of the cell membrane. |
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Answer» Answer: A. Amino ACIDS with polar side groups are in contact with the fatty acid region of the CELL memberane. Explanation: HOPE IT HELPS PLEASE MARK ME AS BRAINLIEST |
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| 46. |
5......The membrane that surrounds the heart is called.हृदय के बाहरी आवरण या झिल्ली को कहते(a) Pericardial Membrane (पेरीकार्डियम) (b) Epithelial membranes (एपीथेलिया)(c) Synovial membranes (सिनोवियल) (d) None of these (इनमें से कोई नहीं) |
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Answer» (a).PERICARDIUM MEMBRANE. |
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| 47. |
2."Food safety will be adversely affected with the spread ofplant diseases."Do you agree with this statement? Why?b. Give two examples of plant diseases.TO |
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Answer» Explanation: |
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| 48. |
C. Diphth2."Food safety will be adversely affected with the spread ofplant diseases."mont? Why? |
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Answer» Sorry Explanation: |
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| 49. |
उदाहरण देते हुए निम्नलिखित में अंतर बताइए:क)उपलब्ध कार्बोज तथा अनुपलब्ध कार्बोजख) आवश्यक तथा अनावश्यक अमीनो अम्लग) जीरोप्थैलिया तथा किरेटोमलेशियाघ)खाद्य कानून तथा खाद्य मानकङ) पास्चुरीकरण तथा निर्जीवीकरण |
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Answer» HARD to UNDERSTAND this |
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| 50. |
C) If we discontinue theuse of plastic, how can anenvironment-friendly substitute be provided ? |
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Answer» Natural CLOTH can replace PLASTIC bags. Sustainable clothing made from organic cotton, wool, hemp, or bamboo won't shed plastic fibers when washed. Felted or recycled wool is a versatile, safe, and compostable MATERIAL for children's TOYS, household containers, and more. |
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