EmSAT Achieve Exam > EmSAT Achieve Videos > Biology for EmSAT Achieve > Cell Wall: Plasmodesmata
Cell Wall: Plasmodesmata Video Lecture | Biology for EmSAT Achieve
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FAQs on Cell Wall: Plasmodesmata Video Lecture - Biology for EmSAT Achieve
| 1. What is the function of plasmodesmata in the cell wall? |  |
Ans. Plasmodesmata are small channels that connect plant cells through the cell wall. Their main function is to facilitate communication and transport of various molecules, such as nutrients, hormones, and signaling molecules, between adjacent plant cells.
| 2. How are plasmodesmata formed in the cell wall? | |
Ans. Plasmodesmata are formed during the cell division process. As new cell walls are being formed, strands of endoplasmic reticulum and cytoplasmic components are left behind, connecting the cytoplasm of neighboring cells. These strands eventually develop into fully functional plasmodesmata.
| 3. Can plasmodesmata be found in animal cells? | |
Ans. No, plasmodesmata are unique to plant cells. Animal cells do not have plasmodesmata in their cell walls. Instead, animal cells rely on other mechanisms, such as gap junctions or tight junctions, for intercellular communication.
| 4. How do plasmodesmata contribute to plant growth and development? | |
Ans. Plasmodesmata play a crucial role in plant growth and development. They allow for the exchange of nutrients and signaling molecules between different plant tissues, coordinating various processes such as cell differentiation, tissue patterning, and organ development.
| 5. Can plasmodesmata be regulated or closed off? | |
Ans. Yes, plasmodesmata can be regulated and closed off under certain circumstances. Plant cells have the ability to modify the size and permeability of plasmodesmata, allowing them to control the movement of molecules between cells. This regulation is important for maintaining tissue integrity, responding to environmental cues, and controlling the spread of pathogens.
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Nov 22, 2024 Last updated |
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