Manasvi Shinde (biology l-no 5)-1.pptx
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This document provides information about the cell wall and nucleus. It discusses that plant, fungi, and bacteria cells have a cell wall in addition to the plasma membrane that is made of cellulose and provides structural strength. The cell wall prevents bursting when the cell is in a hypotonic solution and allows plants to withstand variations in nature. The nucleus is surrounded by a double nuclear membrane and contains nucleoplasm and chromatin. It directs protein synthesis and is the control center of the cell.
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The document summarizes key information about plant cell walls. It describes the different layers of the plant cell wall (middle lamella, primary wall, secondary wall) and their compositions. The primary wall is thin, elastic and composed of cellulose, hemicellulose and pectin. It allows growing cells to expand. The secondary wall is thicker, rigid and composed mainly of cellulose, hemicellulose, and lignin. It provides strength to non-growing cells. The cell wall protects cells and allows them to withstand water pressure within the cell.
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বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Assessment and Planning in Educational technology.pptx
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance
clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar KanvariaCACJapan - GROUP Presentation 1- Wk 4.pdf
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
How to Add Chatter in the odoo 17 ERP Module
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
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South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
Pride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School District
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
Assessment and Planning in Educational technology.pptx
Assessment and Planning in Educational technology.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Manasvi Shinde (biology l-no 5)-1.pptx
- 1. NAME: MANASVI SHINDE CLASS:9TH ROLL NO:8 SUBJECT: BIOLOGY THE FUNDAMENTAL UNIT OF LIFE
- 2. CELL WALL • IN ADDITION TO PLASMA MEMBRANE, HAVE ANOTHER RIGID OUTER COVERING CALLED CELL WALL.. THE CELL WALL LIES OUTSIDE THE PLASMA MEMBRANE. THE PLANT CELL WALL IS MAINLY COMPOSED OF CELLULOSE . CELLULOSE IS A COMPLEX SUBSTANCE AND PROVIDES STRUCTURAL STRENGTH TO PLANTS. CELL WALL POSSESSES SMALL PORES THROUGH WHICH ADJACENT CELL REMAIN CONNECTED CALLED PLASMOLYSIS. • CELL WALL PERMIT THE CELLS OF PLANTS, FUNGI AND BACTERIA TO WHICH STAND VERY DILUTE (HYPOTONIC) EXTERNAL MEDIA WITHOUT BURSTING . IN SUCH MEDIA THE CELL SWELLS, BUILDING UP PRESSURE AGAINST THE CELL WALL. BECAUSE OF THEIR WALLS, SUCH CELLS CAN WITHSTAND MUCH GREATER CHANGES IN THIS SURROUNDING MEDIUM THAN ANIMAL CELL.
- 3. WHAT IS THE ROLE OF CELL WALL? • IT PROVIDES SHAPE TO CELLS. • IT PROVIDES MECHANICAL STRENGTH TO PLANTS. • PROTECTS AGAINST MECHANICAL INJURY. • CELL WALL PREVENTS BURSTING OF CELL ON ENDOSMOSIS. • ABILITY TO WITHSTAND A LOT OF VARIATION IN NATURE.
- 4. NUCLEUS • THE NUCLEUS HAS A DOUBLE LAYERED COVERING CALLED NUCLEAR MEMBRANE . THE NUCLEAR MEMBRANE HAS PORES WHICH ALLOWED THE TRANSFER OF MATERIAL FROM INSIDE THE NUCLEUS TO ITS OUTSIDE THAT IS TO THE CYTOPLASM . • NUCLEOPLASM-IT IS COLORLESS DENSE SAP FOUND INSIDE NUCLEUS IN WHICH CHROMATIN A NUCLEOLUS ARE SUSPENDED. • IN PROKARYOTES NUCLEAR MEMBRANE IS ABSENT. • IT IS CALLED NUCLEOID • CELLS LIKE RBC SIEVE ELEMENTS LACK NUCLEUS.
- 6. PLANT CELL
- 7. ANIMAL CELL