Class 11
NCERT Exemplar
Chapter 1: The Living World
37 questions
Chapter 2: Biological Classification
33 questions
Chapter 3: Plant Kingdom
28 questions
Chapter 4: Animal Kingdom
45 questions
Chapter 5: Morphology of Flowering Plants
42 questions
Chapter 6: Anatomy of Flowering Plants
52 questions
Chapter 7: Structural Organization in Animals
48 questions
Chapter 8: Cell: The Unit of Life
39 questions
(a) not be bound by a membrane
(b) bound by a single membrane
(c) bound by a double membrane
Group the various sub-cellular organelles into these three categories.
Chapter 9: Biomolecules
31 questions
Chapter 10: Cell Cycle and Cell Division
43 questions
Chapter 11: Transport in Plants
66 questions
Chapter 12: Mineral Nutrition
39 questions
Chapter 13: Photosynthesis in Higher Plants
59 questions
Chapter 14: Respiration in Plants
42 questions
Chapter 15: Plant Growth and Development
48 questions
Chapter 16: Digestion and Absorption
34 questions
Chapter 17: Breathing and Exchange of Gases
32 questions
Chapter 18: Body Fluids and Circulation
42 questions
Chapter 19: Excretory Products and their Elimination
44 questions
Chapter 20: Locomotion and Movement
39 questions
Chapter 21: Neural Control and Coordination
31 questions
Chapter 22: Chemical Coordination and Integration
39 questions
Solving time: 4 mins
Structure and function are correlatable in living organisms. Can you justify this by taking plasma membrane as an example?
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Text solution
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The protein component present in membrane acts as a solute channels allowing the flow of minerals, hormones and cellular information from one organelle to another or from one cell to another.
In case of plants where minerals are absorbed actively from the soil. The plasma membrane possess proteinaceous carrier.
The oligosaccharides attached to membrane serve as recognition centres and help in recognising foreign entities before allowing them entry into the cell.
The lipid content of plasma membrane in plant and animal cells are arranged with their hydrophilic polar head directed outwards and non-polar hydrophobic tails directed inwards providing fluidity to the membrane. Glycocalyx present in cell membrane also helps in cellular attachment.
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| Question Text | Structure and function are correlatable in living organisms. Can you justify this by taking plasma membrane as an example? |
| Topic | Cell: The Unit of Life |
| Subject | Biology |
| Class | Class 11 |
| Answer Type | Text solution:1 |
| Upvotes | 110 |
