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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. |
Given alongside is a sketch of a leaf partially covered with black paper and which is to be used in the experiment to show that light is compulsory for the process of photosynthesis. At the end of the experiment, which one of the leaf parts labelled I, II and III will become blue black when dipped in iodine solution? A. I onlyB. II onlyC. I and IIID. II and III |
| Answer» Correct Answer - C | |
| 2. |
A leaf of destarched healthy potted plant was covered by black paper strip as shown in Figure I, and kept in sunlight in the morning. In the evening, it was plucked off and tested for the presence of starch by using iodine solution. The observation is matched with the Figure No.:A. IIB. IIIC. IVD. V |
| Answer» Correct Answer - A | |
| 3. |
A portion of each of four destarched leaves of a plant was covered with paper strips of various kinds. The plant was exposed to sunlight for 5 hours. Thereafter, the strips were removed and the leaves tested for starch in the covered portion. Which one of the four leaves gave the starch test in the covered portion?A. that covered with black paper stripB. that covered with green paper stripC. that covered with white paper stripD. that covered with transparent paper strip |
| Answer» Correct Answer - D | |
| 4. |
A star-shaped figure was cut in the black paper strip used for covering the leaf of a destarched plant used for demonstrating that light is necessary for photosynthesis. As the end of the experiment when the leaf was tested for starch with iodine, the star-shaped figure on the leaf was found to be: A. colourlessB. green in colourC. brown in colourD. blue-black in colour |
| Answer» Correct Answer - D | |
| 5. |
In the experiment to show that `CO_(2)` is given out during respiration by germinating seeds, the student uses:A. Lime waterB. AlcoholC. KOH solutionD. Iodine solution |
| Answer» Correct Answer - C | |
| 6. |
Why is some KOH placed in a small test tube in the flask with germinating seeds in the experiment to demonstrate occurrence of respiration in germinating seeds?A. To provide oxygen required by the seeds for respiration.B. To absorb carbon dioxide and create partial vacuum in the flask.C. To absorb water from the seeds to make them dry.D. To make the air present in the flask alkaline. |
| Answer» Correct Answer - B | |
| 7. |
The most appropriate reason for taking germinating seeds in the experiment to show that carbon dioxide is produced during respiration, is:A. germinating seeds create high temperatureB. germinating seeds are easy to handleC. germinating seeds are living thingsD. germinating seeds are in dormant state |
| Answer» Correct Answer - C | |
| 8. |
Which one of the following is the correct set of three precautions for setting up the experiment to demonstrate that carbon dioxide is evolved during respiraition?A. Air tight set up, delivery tube dips in water in beaker, flask has seeds which have just germinated.B. Thread holding KOH test tube, air tight flask, delivery tube above surface of water in the beaker.C. Germinated seeds under water in the flask, experimental set up not air tight, delivery tube above water level.D. Delivery tube touching bottom of water, KOH test tube held by a thick wire, seeds covered by water. |
| Answer» Correct Answer - A | |
| 9. |
Bottle containing the undermentionel liquids were available in the laboratory. Which liquid did a student use for putting a drop on the slide before placing the coverslip while preparing the mount of leaf epidermal peel?A. waterB. SafraninC. GlycerineD. Iodine |
| Answer» Correct Answer - C | |
| 10. |
A student had drawn the diagram of stomata in a hurry, as shown alongside. He could not be given full marks as he: A. forgot to draw nuclei in guard cells and also to label the diagram.B. did not draw nuclei in guard cells and other cells.C. should have drawn nuclei and chloroplasts in guard cells and nuclei in all epidermal cells.D. did not label the stoma in its correct position. |
| Answer» Correct Answer - C | |
| 11. |
An experiment was set up to determine the percentage of water absorbed by raisins. If the mass of dry raisins was 40 g, and the mass of wet raisins was 45 g, then the percentage of water absorbed would be:A. `(45g)/(40g)xx100`B. `(40g)/(45g)xx100`C. `((45-40)g)/(40g)xx100`D. `((45-40)g)/(45g)xx100` |
| Answer» Correct Answer - C | |
| 12. |
Raisins are soaked in water for determining the percentage of water absorbed by raisins. The formula used by a student for calculating the percentage of water absorbed , is:A. `"Initial weight-Final weight"/"Initial weight"xx100`B. `"Final weight-Initial weight"/"Initial weight"xx100`C. `"Final weight-Initial weight"/"Final weight"xx100`D. `"Initial weight-Final weight"/"Final weight"xx100` |
| Answer» Correct Answer - B | |
| 13. |
If the weight of dry raisins is `W_(1)` and that of soaked raisins is `W_(2)` , then the correct equation for calculating the percentage of water absorbed by raisins will be:A. `W_(1)-W_(2)`B. `W_(2)-W_(1)`C. `(W_(2)-W_(1))/(W_(1))xx100`D. `(W_(1)-W_(2))/(W_(2))xx100` |
| Answer» Correct Answer - C | |
| 14. |
During the preparation of a temporary mount of leaf peel, the excess glycerine is removed by:A. dipping slide in waterB. a blotting paperC. a cotton clothD. tilting the slide |
| Answer» Correct Answer - B | |
| 15. |
In the experiment to demonstrate that starch is made as food by the process of photosynthesis, the plucked leaf is first boiled in water for about 3 to 5 minutes in order to :A. remove chlorophyll from leaf cellsB. break down the cell membranes of leaf cellsC. soften the brittle leafD. convert starch into glucose so that it can be tested easily |
| Answer» Correct Answer - B | |
| 16. |
The apparatus rewuired to perform the experiment to show the evolution of carbon dioxide during respiration includes:A. flat-bottom flask, rubber cork, small glass tube, water, KOH solution, delivery tube, germinating seeds, thread,vaseline, small beakerB. round-bottom flask, rubber cork, boiling tube, water, NaOH solution, delivery tube, dry seeds, thread, vaseline, small beakerC. measuring-flask, rubber cork, small glass tube, water, `Na_(2)CO_(3)` solution, delivery tube, germinating seeds, thread, vaseline, small beakerD. flat-bottom flask, rubber cork, small glass tube, water, KOH solution, delivery tube, dry seeds, thread, vaseline, small beaker |
| Answer» Correct Answer - A | |
| 17. |
The following figures illustrate the binary fission in Amoeba in an incorrect sequence : The correct sequence is :A. I,III,IV,IIB. II,III,IV,IC. IV,III,II,ID. III,IV,II,I |
| Answer» Correct Answer - B | |
| 18. |
Four stages of binary fission in Amoeba are shown below. The stage at which nuclear fission and cytokinesis are observed is, stage: A. IB. IIC. IIID. IV |
| Answer» Correct Answer - B | |
| 19. |
In the slide showing binary fission in Amoeba and budding in yeast,the correct observations are:A. the daughter cells of Amoeba and the bud of yeast are smaller than their respective parental cellsB. the daughter cells of Amoeba and the bud of yeast are smaller than their respective parental cellsC. the daughter cells of Amoeba are bigger than the parent but the bud of yeast is smaller than the parentD. the daughter cells of Amoeba are smaller than the parent but the bud of yeast is larger than the parent |
| Answer» Correct Answer - A | |
| 20. |
Which stage out of those marked I, II, III and IV is showing the binary fission in Amoeba? A. IB. IIC. IIID. IV |
| Answer» Correct Answer - D | |
| 21. |
Slides A and B show stages of asexual reproduction in two different organisms: The slides A and B are depicting:A. binary fission in both Amoeba and YeastB. budding in both Amoeba and YeastC. binary fission in yeast and budding in AmoebaD. binary fission in Amoeba and budding in Yeast |
| Answer» Correct Answer - D | |
| 22. |
Each of the three beakers A, B, and C contained 50 mL of distilled water. A student placed five reisins in each beaker. The raisins for each beaker weighed the same. The beakers were kept at room temperature. The raisins were removed from beaker A after 10 minutes, from beaker B after 20 minutes and from beaker C after one hour. On calculating the percentage of water absorbed by the raisins, it was found that:A. maximum absorption of water by raisins was in beaker CB. maximum absorption of water by raisins was in beaker BC. minimum absorption of water was y raising in beaker CD. absorption of water was equal in raisins of all the three beakers |
| Answer» Correct Answer - A | |
| 23. |
The given slides A and B were identified by four students I, II, III and IV as stated below : `{:(,"Slide A",,"Slide B"),(I.,"Binary fission in Amoeba",,"Daughter cells of Amoeba"),(II.,"Budding in Yeast",,"Buds of Yeast"),(III.,"Binary fission in Amoeba",,"Buds of Yeast"),(IV.,"Budding in Yeast",,"Daughter cells in Amoeba"):}` Of the above mentioned identifications of alides A and B , which one is correct?A. IB. IIC. IIID. IV |
| Answer» Correct Answer - A | |
| 24. |
The given slides A and B were identified by four students, I, II, III and IV as stated below: `{:(,"Slide A",,"Slide B"),(I.,"Binary fission in Amoeba",,"Daughter cells of Amoeba"),(II.,"Budding in yeast",,"Buds of yeast"),(III.,"Binary fission in Amoeba",,"Buds of yeast"),(IV.,"Budding in yeast",,"Daughter cells in Amoeba"):}` Of the above mentioned identifications of slide A and B, which one is correct?A. IB. IIC. IIID. IV |
| Answer» Correct Answer - A | |