Students may better prepare for the Class 10 board exams by using the material provided in the NCERT Solutions Science. This knowledge is extremely crucial as it assists students in the better comprehending difficult subject matter. Checking how well you understand a certain subject by reading the solutions to the questions asked in the textbook is a great way to figure out where your knowledge is strongest and where it needs improvement. Our subject matter specialists have designed these NCERT Solutions for Class 10 Science in such a manner that the students will have a much better understanding of all of the subjects that are included in the curriculum for CBSE Class 10 Science.
Students are able to create a strong conceptual basis with the help of the NCERT Solutions PDFs available at SWC. This base plays a key part in the students’ preparation for the latter phases of the competitive examinations. We give comprehensive answers to challenges posed by NCERT in accordance with the methodology provided by CBSE. The students are able to effortlessly prepare all of the ideas that are presented in their respective courses better and more successfully, and they are even able to succeed in passing the most difficult competitive examinations, such as JEE Main, JEE Advanced, NEET, AIMS, and so on.
Your academic journey begins a new stage as you reach the eighth grade, and a new facet of learning awaits you. This is the year where pupils begin to acquire an interest in the topic at hand, and it is also the year in which you choose whether you will study business, humanity, or science in the following year (class 12). As a consequence of this, having a solid foundation of knowledge in fields such as mathematics and physics comes highly recommended. The NCERT textbook for class 8 is the greatest book now available on the market for enhancing one’s education in the areas of mathematics and science. Read up on the theory that is presented in the book for grade 8 and answer all of the questions that are posed in the practice section of the NCERT textbook.
When working through the exercises in the NCERT textbook, if you run into any type of difficulty or uncertainty, you may use the swc NCERT Solutions for class 8 as a point of reference. While you are reading the theory form textbook, it is imperative that you always have notes prepared. You should make an effort to understand things from the very beginning so that you may create a solid foundation in the topic. Use the NCERT as your parent book to ensure that you have a strong foundation. After you have finished reading the theoretical section of the textbook, you should go to additional reference books.
NCERT SOLUTION FOR CLASS 8 SCIENCE CHAPTER 8 CELL STRUCTURE AND FUNCTIONS – Exercises
Question 1. Indicate whether the following statements are True or False.
a) Unicellular organisms have a one-celled body.
b) Muscle cells are branched.
c) The basic living unit of an organism is an organ.
d) Amoeba has irregular shape.
Solution :
a) True
b) False
c) False
d) True
Question 2. Make a sketch of the human nerve cell. What function do nerve cells perform?
Solution :
The main function of the nerve cell is to transmit messages to the brain from receptor organs and vice versa. It has a control over the working of different parts of the body.
Question 3. Write short notes on the following.
(a) Cytoplasm
(b)Nucleus of a cell
Solution :
(a) Cytoplasm: Cytoplasm is the jelly-like substance present between the cell membrane and the nucleus. Various other components or organelles like mitochondria, golgi bodies, ribosomes, etc. are present in the cytoplasm. Cytoplasm helps exchange and storage of substances among cell organelles. Most of the metabolic activities occur inside cytoplasm.(b) Nucleus of a cell:
Nucleus is an important component of the living cell. It is mostly spherical and located in the centre of the cell. It is separated from the cytoplasm by a membrane called the nuclear membrane. In addition, nucleus contains thread-like structures called chromosomes. These carry genes and help in inheritance or transfer of characters from the parents to the offspring. Nucleus, in addition to its role in inheritance, acts as control centre of the activities of the cell. The entire content of a living cell is known as protoplasm. It includes the cytoplasm and the nucleus.
(b)Nucleus of a cell: Nucleus is an important component of the living cell. It is mostly spherical and located in the centre of the cell. It is separated from the cytoplasm by a membrane called the nuclear membrane. In addition, nucleus contains thread-like structures called chromosomes. These carry genes and help in inheritance or transfer of characters from the parents to the offspring. Nucleus, in addition to its role in inheritance, acts as control centre of the activities of the cell. The entire content of a living cell is known as protoplasm. It includes the cytoplasm and the nucleus. Protoplasm is called the living substance of the cell.
Question 4. Which part of the cell contains organelles?
Solution : Cytoplasm is the part of cell which contains organelles such as mitochondria, ribosomes, golgi bodies, etc.
Question 5. Make sketches of animal and plant cells. State three differences between them.
Solution :
The differences between plant cell and animal cell are:
Question 6. State the difference between eukaryotes and prokaryotes.
Solution :
| Prokaryotes | Eukaryotes |
| Most of them are unicellular | Most of them are multicellular |
| There is no nuclear membrane. So, the nucleus is poorly defined. | There is a nuclear membrane. So, the nucleus is well defined. |
| Not all cell organelles are present | All the cell organelles are present. |
| Nucleolus is absent | Nucleolus is present |
| Eg: Blue green algae, Bacteria | Eg: Plant, Animal cells and Fungi. |
Question 7. Where are chromosomes found in a cell? State their function.
Solution : Chromosomes are found in the nucleus of the cell. They carry genes and help in inheritance of characters from the parents to the offspring.
Question 8. ‘Cells are the basic structural units of living organisms’. Explain.
Solution : All the living organisms are made of cells either unicellular or multicellular. The basic functions of life like respiration, assimilation and all major metabolic activities are carried inside the cell. So, cell is known as structural and functional units of living organism.
Question 9. Explain why chloroplasts are found only in plant cells?
Solution :
Question 10. Complete the crossword with the help of clues given below:
Across:
1.This is necessary for photosynthesis.
3.Term for component present in the cytoplasm.
6.The living substance in the cell.
8.Units of inheritance present on the chromosomes.
Down:
1.Green plastids.
2.Formed by collection of tissues.
4.It separates the contents of the cell from the surrounding medium.
5.Empty structure in the cytoplasm.
7.A group of cells.
Solution :
Across:
1.Chlorophyll
3.Organelle
6.Protoplasm
8.Genes
Down:
1.Chloroplasts
2.Organ
4.Membrane
5.Vacuole
7.Tissue
Conclusions for NCERT SOLUTION FOR CLASS 8 SCIENCE CHAPTER 8 CELL STRUCTURE AND FUNCTIONS
Lacking a solid understanding of scientific principles might have unimaginable repercussions. The NCERT textbook for class 8 science comes highly recommended by a number of different educators. You will not only be able to improve your academic performance by using the appropriate combination of NCERT textbooks and NCERT answers for class 8 science chapter 8 but you will also be able to establish a strong foundation in science. The NCERT answers that were generated by the SWC team are among the finest solutions that are currently accessible on the web.
