NCERT Solutions for Class 8 Science Chapter 8- Cell-Structure and Functions
NCERT Solutions for Class 8 Science Chapter 8 – Cell Structure and Functions are explained in an easy to understand way. NCERT Solutions for Class 8 Science Chapter 8 cover significant topics such as the discovery of the cell, cell structure and functions, parts of cells, plant cells, animal cells, cell number, size and shape.
Our NCERT Solutions are drafted as per the CBSE Class 8 Science syllabus and CBSE guidelines. They help you build a solid conceptual base about Cell Structure and Functions. Our subject matter experts have covered all topics of the chapter along with the detailed answers to each exercise in a systematic way.
NCERT Solutions for Class 8 Science Chapter 8 by Instasolv have been drafted by proficient science teachers. They are the best study material for quick and effective learning. In fact, you can use these solutions for the revision of Chapter 8. They have been methodically designed and developed to help you clear all your doubts instantly and keep you tension free before your exams. With our proven study tips and tricks, excelling in your exams will become your second nature.
NCERT Class 8 Science Chapter 8: Important Topics
In this part of NCERT Solutions for Class 8th Science Chapter 8 – Cell Structure and Functions, you will learn about the cell structure and its functionalities. This is one of the essential units of the class 8 science exam. It also helps you create a strong conceptual base for learning more complex topics in higher-level classes.
Some of the important concepts covered in this chapter have been listed below.
- Discovery of cell
In this part of Chapter 8 – Cell Structure and Functions, you will learn facts related to the discovery of a cell in 1665 by Robert Hooke through the examination of a thin section of cork under a self-made microscope. It talks about the cell theory proposed by two German scientists called Theodor Schwann and Matthias Schleiden in the 1830s.
- The Cell
In this part of Class 8 Science Cell Structure and Functions, you will learn how the cell functions and why it is referred to as bricks of making up a building. This part of Class 8 Science Cell Structure and Functions tells you that cells are complex living structures. It elaborates about the nucleus membrane along with its layers. The nucleus membrane separates all nucleus content from the cytoplasm and also acts as an obstruction.
Here, you will learn in detail about the structure of the nucleus. This chapter also teaches you about the fact that the carriers of the genes are called chromosomes and that they look like a thread. You will learn all these concepts with the help of detailed illustrative diagrams.
- Organisms show variety in Cell number, Shape and Size
In CBSE NCERT Class 8 Science Chapter 8, you will be taught about the cell shape and cell size. It teaches you about common shapes of various cells such as round, elongated or spherical. You will also be taught about the shapes of red blood cells, smooth muscle fibres, white blood cells and amoeba.
Here you will learn that in animals, the smallest cell size is 0.1 micron, and it is found in mycoplasma. On the other hand, the largest cells are found in the eggs of ostriches which are 17cm. It also talks about concepts like cell wall, cell membrane, or plasma membrane. This section also expands about multicellular organisms that are made up of more than one cell such as frogs and mango trees. It also talks about unicellular organisms made up of a single cell such as amoeba and paramecium.
- Cell Structure and Function
In NCERT CBSE Class 8 Science Chapter 8, you shall learn about the cell membrane, which is the outermost body. You will understand the various cell components, such as the nucleus, cytoplasm, cell membrane, ribosomes, and nuclear membrane. Some other topics covered in this section are Eukaryotic cells and Prokaryotic Cells. Here you will learn how cells function in unicellular and multicellular organisms.
- Cell Parts
In this section of NCERT Solutions for Class 8 Science Chapter 8 – Cell Structure and Functions, you will learn important cell parts such as endoplasmic reticulum, ribosomes, golgi bodies, mitochondria, lysosome, vacuoles, and plastids. It explains all these concepts in details with informative and elaborative illustrated diagrams. This helps you learn easily and remember better.
- Comparison of Plants and Animal Cells
Here, in NCERT Solutions for Class 8 Science Chapter 8, you shall read about the same cells which are there in plants and animals cells. You will also read about the cell size, cell shape and cell colour along with their respective functionalities. Here you will also learn the difference between plant cells and animal cells. It teaches you that only plant cells have plastids, and only animal cells have centrioles. It tells you that animals have smaller vacuoles than plants. This chapter also covers important concepts, such as diffusion and osmosis.
CBSE NCERT Class 8 Science Chapter 8: Exercise Discussion
NCERT Class 8 Science Chapter 8 – Cell Structure and Functions consist of 1 exercise with 10 questions.
- Question 1 is a true or false question. It covers multiple topics from the chapter.
- Question 2 is a diagrammatic question where you will have to draw the diagram of the human nerve cell and also write about the functions performed by it.
- Question 3 is a long answer question, where you have to write short notes on the given topics.
- Question 4 is a short answer question which deals with the topic organelles.
- Questions 5 and 6 are differentiation based questions, where you need to explain the differences with the diagram to support your answer.
- Question 7, 8 and 9 are short answer questions and direct questions that ask you to give explanations of topics such as chromosomes and chloroplast.
- Question 10 is a crossword puzzle. Here you have to complete the crossword puzzle with the given hints.