NCERT Solutions for Class 8 Science Chapter 8 | Free PDF Download















FAQs on NCERT Solutions - Cell Structure and Functions of Class 8 Science
1. The cell is a simple structural unit of living organisms. Explain.
All plants and animals are made up of cells. It is the smallest unit of life and performs various functions. They are the building blocks of our existence. This is the purpose why cells are referred to as 'the primary structural and functional blocks of existence'. Cells exist in various styles and sizes and perform an extensive variety of activities. Their styles and sizes are associated with the function they perform. They are an important part of living organisms without which life is not possible. Cell carries out various functions such as respiration, transportation, excretion, reproduction, and many more.
2. Explain the nucleus of the cell in detail.
The nucleus is a double-membrane-bound cellular organelle present in cells. It consists of the DNA, the genetic material. It is the command centre of the cell and is round in shape. It consists of the following components.
Nuclear Membrane: It is a double-layered membrane. It separates the contents of the nucleus from the cytoplasm and acts as a wall. It has pores that allow the switch of positive substances inside and outside of the cell.
Nucleolus: It has a small dense round body. It is not bounded by a membrane.
Chromosome: These are thread-like structures that deliver genes.
3. From where can I get the NCERT Solutions for Science Class 8 Chapter 8?
You can access all NCERT Solutions, including Chapter 8 of Class 8 Science, through Vedantu. NCERT Solutions contains questions and solutions for every NCERT textbook question. The PDF of the NCERT Solutions for Chapter 8 of Class 8 Science is available for download from Vedantu. Experts claim the ideas assist you in better comprehending the Chapter and getting higher grades on your studies. To assist you to ace your test, NCERT Solutions even provides practice questions and exams from prior years.
4. What are prokaryotes? Give some features.
Prokaryotes are creatures with only one cell. They are often of a single cell type. Nucleolar membranes are absent in prokaryotes. As a result, the cell's nucleus is not well delineated. The nucleolus is missing in prokaryotes because the nucleus is improperly characterised. In addition, not all of the cell organelles are present in prokaryotes. Prokaryotes are therefore defined as cells that contain nuclear components but lack a nuclear membrane. Prokaryotes include many organisms including bacteria and blue-green algae.
5. What are Eukaryotes?
Creatures called eukaryotes that have one or more cells. They have well-defined membrane organelle. Eukaryote cells have a nuclear membrane and a well-organised nucleus. Animal cells, plant cells, fungi, cheek cells, onion cells, and more are a few forms of eukaryotic cells.