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What would happen if there is an absence of cell wall in a plant cell. (3 marks)?
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What would happen if there is an absence of cell wall in a plant cell....

Effects of Absence of Cell Wall in a Plant Cell

- Loss of Structural Support: The cell wall provides structural support to plant cells, helping them maintain their shape and withstand mechanical stress. Without a cell wall, the plant cell would become soft and fragile, unable to maintain its shape or support the plant's structure.
- Decreased Protection: The cell wall acts as a barrier, protecting the plant cell from external threats such as pathogens and physical damage. Without a cell wall, the plant cell would be more vulnerable to infections and injuries, compromising the overall health and survival of the plant.
- Impaired Water Regulation: The cell wall plays a crucial role in regulating the movement of water and nutrients into and out of the plant cell. Without a cell wall, the plant cell would struggle to maintain proper water balance, leading to issues such as wilting and dehydration.
In conclusion, the absence of a cell wall in a plant cell would have detrimental effects on the plant's structure, protection, and ability to regulate water, ultimately impacting its overall health and survival.
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Invasions of exotic species into new geographic areas sometimes occur naturally and without human agency. However, human actions have increased this trickle to a flood. Human-caused introductions may occur either accidentally as a consequence of human transport, or intentionally but illegally to serve some private purpose or legitimately to procure some hoped-for public benefit by bringing a pest under control, producing new agricultural products new agricultural products or providing novel recreational opportunities. Many introduced species are assimilated into communities without much obvious effect. However, some have been responsible for dramatic changes to native species and natural communities. For example, the accidental introduction of the brown tree snake Boiga irregularis into Guam, an island in the Pacific, has through nest predation reduced 10 endemic forest bird species to the point of extinction.One of the major reasons for the worlds great biodiversity is the occurrence of centers of endemism so that similar habitats in different parts of the world are occupied by different groups of species that happen to have evolved there. If every species naturally had access to everywhere on the globe, we might expect a relatively small number of successful species to become dominant in each biome. The extent to which this homogenization can happen naturally is restricted by the limited powers of dispersal. By virtue of the transport opportunities offered by humans, these barriers have been breached by an ever-increasing number of exotic species. The effects of introductions have been to convert a hugely diverse range of local community compositions into something much more homogeneous.It would be wrong, however, to conclude that introducing species to a region will inevitably cause a decline in species richness there. For example, there are numerous species of plants, invertebrates and vertebrates found in continental Europe but absent from the British Isles (many because they have so far failed to recolonize after the last glaciations). Their introduction would be likely to significant detrimental effect noted above arises where aggressive species provide a novel challenge to endemic biotas ill- equipped to deal with them.Q.Why does man introduce exotic species into new geographical areas?1) To breed exotic species with local varieties.2) To increase agricultural productivity.3) For beautification and landscaping.Which of the above statements is/are correct?

PassageIInvasions of exotic species into new geographical areas sometimes occur naturally without human agency. However, human actions have increased this trickle to a flood. Human caused introductions may occur either accidently or as a consequence of human transport, or intentionally but illegally to serve some private purpose or legitimately to procure some hoped-for public benefit by bringing a pest under control, producing new agricultural products or providing novel recreational opportunities. Many introduced species are assimilated into communities without much obvious effect. However some have been responsible for dramatic changes to native species and native communities. For example, the accidental introduction of the brown tree snake, Boiga irregularis into Guam, an island in the pacific, has through nest predation reduced 10 endemic forest bird species to the point of extinction.One of the major reasons for the worlds great biodiversity is the occurrence of centres of endemism so that similar habitats in different parts of the world are occupied by different groups of species that happen it have evolved there. If the species naturally had access to everywhere on the globe, we might expect a relatively small number of successful species to become dominant in each biome. The extent to which this homogenisation can happen naturally is restricted by the limited powers of dispersal of most species in the face of the physical barriers that exist to dispersal. By virtue of the transport opportunities offered by humans, these barriers have been breached by an ever-increasing number of exotic species.The effects of introductions have been to convert a hugely diverse range of local community compositions into something much more homogenous.It would be wrong, however, to conclude that introducing species to a region will inevitably cause a decline in species richness there. For example, there are numerous species of plants, invertebrates and vertebrates found in continental Europe but absent from the British Isles (many because they have so far failed to recolonize after the last glaciations).Their introduction would be likely to augment British biodiversity. The significant detrimental effect noted above arises where aggressive species provide a novel challenge to endemic biotas ill-equipped to deal with them.Q. Why does man introduce exotic species into new geographical areas?1. To bread exotic species with local varieties.2. To increase agricultural productivity.3. for beautification and landscaping.Which of the above statements is/are correct?

PassageIInvasions of exotic species into new geographical areas sometimes occur naturally without human agency. However, human actions have increased this trickle to a flood. Human caused introductions may occur either accidently or as a consequence of human transport, or intentionally but illegally to serve some private purpose or legitimately to procure some hoped-for public benefit by bringing a pest under control, producing new agricultural products or providing novel recreational opportunities. Many introduced species are assimilated into communities without much obvious effect. However some have been responsible for dramatic changes to native species and native communities. For example, the accidental introduction of the brown tree snake, Boiga irregularis into Guam, an island in the pacific, has through nest predation reduced 10 endemic forest bird species to the point of extinction.One of the major reasons for the worlds great biodiversity is the occurrence of centres of endemism so that similar habitats in different parts of the world are occupied by different groups of species that happen it have evolved there. If the species naturally had access to everywhere on the globe, we might expect a relatively small number of successful species to become dominant in each biome. The extent to which this homogenisation can happen naturally is restricted by the limited powers of dispersal of most species in the face of the physical barriers that exist to dispersal. By virtue of the transport opportunities offered by humans, these barriers have been breached by an ever-increasing number of exotic species.The effects of introductions have been to convert a hugely diverse range of local community compositions into something much more homogenous.It would be wrong, however, to conclude that introducing species to a region will inevitably cause a decline in species richness there. For example, there are numerous species of plants, invertebrates and vertebrates found in continental Europe but absent from the British Isles (many because they have so far failed to recolonize after the last glaciations).Their introduction would be likely to augment British biodiversity. The significant detrimental effect noted above arises where aggressive species provide a novel challenge to endemic biotas ill-equipped to deal with them.Q. How is homogenization prevented under natural conditions?

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What would happen if there is an absence of cell wall in a plant cell. (3 marks)?
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What would happen if there is an absence of cell wall in a plant cell. (3 marks)? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What would happen if there is an absence of cell wall in a plant cell. (3 marks)? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What would happen if there is an absence of cell wall in a plant cell. (3 marks)?.
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