InterviewSolution
Saved Bookmarks
InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Name the common physical processes involved in the transport of materials across the cell membrane. |
| Answer» Diffusion and osmosis. | |
| 102. |
Solute concentration is higher in the external solutionA. hypotonicB. isotonicC. hypertonicD. none of the above |
| Answer» Correct Answer - c | |
| 103. |
Cell theory was given byA. Schleiden and SchwannB. VirchowC. HookeD. Haeckel |
| Answer» Correct Answer - A | |
| 104. |
If the medium has exactly the samewater concentration as the cell, such a solution is calledA. hypotonicB. isotonicC. hypertonicD. none of these |
|
Answer» Correct Answer - B |
|
| 105. |
The plasma membrane is flexible and ismade up of organic molecules called ___________and ___________.A. fats, proteinsB. lipids, fatsC. proteins, lipidsD. none of these |
|
Answer» Correct Answer - C |
|
| 106. |
Find out the false sentences.A. Golgi apparatus is involved with the formation of lysosomes.B. Nucleus, mitochondria and plastied have DNA : hence they are able to make their own structural proteins.C. Mitochondria is said to be the power house of the cell as ATP is generated in them.D. Cytoplasm is called as protoplasm. |
|
Answer» Correct Answer - D Protoplasm is differentiated into cytoplasm and nucleus. |
|
| 107. |
Which of the following are covered by a single membrane?A. MitochondriaB. VacuoleC. LysosomeD. Plastied |
|
Answer» Correct Answer - B::C Both vacuole and lysosome are cell organelles covered by unit membrane. |
|
| 108. |
How the constrast is enhanced in an electron microscope ? Where the image is obtained ? |
| Answer» Ultra-thin and dry section of material under study is impregnated with some metal to enhance the constrast. Image is obtained on a photographic filim or screen. | |
| 109. |
The history of the cell began in 1665 with the publication of Micrographia in London byA. Robert HookeB. Robert BrownC. StarburgerD. Dujardin |
| Answer» Correct Answer - A | |
| 110. |
Classify the following as osmosis or diffusion : (a) Aquatic animals using oxygen dissolved in water during respiration. (b) Swelling up of raisins on keeping in water. (c) Spreading of virus on Sneezing. |
|
Answer» (a) Diffusion (b) Osmosis (c) Diffusion. |
|
| 111. |
Which kind of plastid is more commin in (a) roots of the plant (b) leaves of the plant (c) flowers nd fruits |
| Answer» (a) Leucoplasts, (b) Chloroplasts, (c) Chromoplasts (non-green). | |
| 112. |
Give atleast three similarities and three dissimilarities between a plant cell and animal cell. |
|
Answer» Similarities 1. Both plant and animal cells are the building blocks of all plants and animals respectively. 2. Both have various membrane bound cell organelles to perform different functions. 3. Both have membrane-bound nucleus a the control centre of all cellular activities as well as for carrying hereditary information. Dissimilarities 1. Rigid cell wall is present in plant cells but absent in animal cells. 2. Plastids are present in plant cells but absent in animal cells. 3. Plant cells do not burst up when placed in hypotonic solution but animal cell do. |
|
| 113. |
Give atleast two important characteristics of a prokaryotic cell. |
| Answer» Prokaryotic cells (i) lack nuclear membrane around the genetic material and (ii) these do not contain membrane bound cell organelles. | |