NCERT Solutions for Class 8 Science Chapter 8 Cell Structure and Function
NCERT Solutions for Class 8 Science Chapter 8 Cell Structure and Function: Have you ever seen the construction of a building? Obviously yes, then you must have noticed that bricks together form walls that further form rooms which turn into floors and then to a building. In the solutions for NCERT Class 8 Science chapter 8 Cell Structure and Function, you will study the structure and function of the cells. You can say that the smallest unit of a building is a brick. Similarly, the smallest structural and functional unit of living organisms is called ‘cell’. In this chapter, you will know how cells of prokaryotes are different from those of eukaryotes. After reading the details of prokaryotic and eukaryotic cells given in this chapter, you will be able to easily distinguish between prokaryotic and eukaryotic cells. After completing the chapter, go for NCERT exercise and to get correct and detailed answers to refer to the NCERT solutions for Class 8 Science chapter 8 Cell Structure and Function, to get an understanding of cells and its components. If you need help in finding solutions of NCERT book to any other class, then don't worry NCERT Solutions will help you out.
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Basic components of a cell:
Cells are composed of different components that help a cell in performing essential functions of life. In chapter 8 Cell structure and function, you will study the details of the basic components of a cell. These important cell components are
Cell wall
Cell membrane
Nucleus
Mitochondria
Endoplasmic reticulum
Ribosomes
Lysosomes etc.
Among the topics given above, the most important ones from which questions can come are the definition of the cell, who discovered cell, different parts of the cell, differences between plant and animal cells etc. After going through the solutions for NCERT Class 8 Science chapter 8 Cell Structure and Function, you must be able to understand all the answers the following questions:
NCERT Solutions for Class 8 Science Chapter 8 Cell Structure and Function: Solved Exercise Questions
Q1. Indicate whether the following statements are True (T) or False (F)
(a) Unicellular organisms have one-celled body. (T/F)
Answer:
(True) uni refers to only one.
Q1. Indicate whether the following statements are True (T) or False (F).
(b) The basic living unit of an organism is an organ. (T/F)
Answer:
( False ) Basic unit of life is a cell.
Q1. Indicate whether the following statements are True (T) or False (F).
(c) Amoeba has irregular shape. (T/F)
Answer:
( True ) Amoeba has irregular shape
CBSE NCERT solutions for class 8 science chapter 8 cell structure and function
Q2. Make a sketch of the human nerve cell. What function do nerve cells perform?
Answer:
Here is the sketch of the human nerve cell:
Function-
The nerve cell receives and transfers messages, thereby helping to control and coordinate the working of
different parts of the body.
Q3. Write short notes on the following.
(a) Cytoplasm
Answer:
Cytoplasm -The jelly-like substance between the nucleus and the cell membrane is called cytoplasm. nucleus. Various other components, organelles, of cells are present in the cytoplasm. These are mitochondria, Golgi bodies, ribosomes, etc.
Q3. Write short notes on the following.
(b) Nucleus of a cell
Answer:
Nucleus of the cell-
It is an important component of the living cell. It is generally spherical and located in the centre of the cell. the nucleus contains thread-like structures called chromosomes. These carry genes and help in inheritance or transfer of characters from the parents to the offspring.
Q4. Which part of the cell contains organelles?
Answer:
The cytoplasm is the part of the cell that contains organelles like are mitochondria, Golgi bodies, ribosomes, etc.
NCERT solutions for class 8 science chapter 8 cell structure and function:
Q5. Make sketches of animal and plant cells. State three differences between them.
Answer:
Differences between them-
Plant cell-
- The cell wall is present
- the large size of vacuoles
- Plastides are present
Animal Cell-
- The cell wall is absent
- vacuole size is small as compared to plant cell
- No plastids, except for protozoan euglena
Q6. State the difference between eukaryotes and prokaryotes.
Answer:
Eukaryotes -
- mostly are multicellular
- the nucleus is well defined and surrounded by the nuclear membrane.
- nucleolus is present
- All organisms other than bacteria and blue-green algae are called eukaryotes.
Prokaryotes -
- These are mostly unicellular
- The nucleus of the bacterial cell is not well organised
- There is no nuclear membrane.
- bacteria and blue-green algae are prokaryotes
Q7. Where are chromosomes found in a cell? State their function.
Answer:
Chromosomes (thread like structure) found inside the nucleus. It plays an important role.
These carry genes and help in inheritance or transfer of characters from the parents to the offspring
CBSE NCERT solutions for class 8 science chapter 8 cell structure and function:
Q8. ‘Cells are the basic structural units of living organisms’. Explain.
Answer:
The cell is the smallest unit of living organisms and is capable of all life functions. These are the building blocks of life. that's why cells are referred to as the 'basic structure and functional unit of life'.
Q9. Explain why chloroplasts are found only in plant cells?
Answer:
In a plant cell, green coloured plastids are called chloroplasts.
They provide green colour to the leaves.chlorophyll in the chloroplasts of leaves, is essential for photosynthesis. Since photosynthesis can perform by only plants so chloroplast is present in plants.
Q10. 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.
Answer:
Across
1. CHLOROPHYLL
3. ORGANELLE
6. PROTOPLASM
8. GENES
Down
1.CHLOROPLASTS
2.ORGAN
4. MEMBRANE
5. VACUOLE
Cell Structure and Function Class 8 Science Chapter 8-Topics
- Discovery of cell
- The cell
- Organisms show variety in cell number, shape and size
- Cell structure and function
- Parts of the cell
- Comparison of plant cell and animal cell
More About Cell Structure and Function Class 8 Science
If you are facing any issue in understanding the answers of the above questions, then don't worry and again go through that NCERT Book and try to understand all the concepts of every topic and then write the answers of all these questions by your own and then compare them with NCERT solutions for Class 8 Science chapter 8 Cell Structure and Function. You will see that your knowledge, as well as the understanding of these concepts, will increase and you will be able to explain the answers in a better way.
NCERT Solutions For Class 8 Science- Chapter-Wise
Chapter 1 | Crop Production and Management |
Chapter 2 | Microorganisms Friend and Foe In Microorganisms |
Chapter 3 | Synthetic Fibres and Plastics |
Chapter 4 | Materials Metals and Non Metals |
Chapter 5 | Coal and Petroleum |
Chapter 6 | Combustion and Flame |
Chapter 7 | Conservation of Plants and Animals |
Chapter 8 | Cell Structure and Functions |
Chapter 9 | Reproduction in Animals |
Chapter 10 | Reaching the Age of Adolescence |
Chapter 11 | Force and Pressure |
Chapter 12 | Friction |
Chapter 13 | Sound |
Chapter 14 | Chemical Effects of Electric Current |
Chapter 15 | Some Natural Phenomena |
Chapter 16 | Light |
Chapter 17 | Stars and the Solar System |
Chapter 18 | Pollution of Air and Water |
NCERT Solutions For Class 8: Subject-Wise
Benefits of NCERT Solutions for Class 8 Science Chapter 8 Cell Structure and Function:
- NCERT Solutions for Class 8 Science chapter 8 Cell Structure and Function will also boost your knowledge.
- You will get all the answers to this chapter and it will help you to score good marks in your school exam.
- NCERT solutions for Class 8 Science chapter 8 Cell- Structure and Function will also help you to understand all the concepts easily.
- NCERT is the base of your learning.
Also Check NCERT Books and NCERT Syllabus here:
Frequently Asked Question (FAQs) - NCERT Solutions for Class 8 Science Chapter 8 Cell Structure and Function
Question: How many questions in NCERT Class 8 chapter 8 Cell Structure and Function ?
Answer:
There are 10 questions in NCERT Class 8 chapter Cell Structure and Function
Question: Can I download the NCERT solution for Class 8 Science Chapter 8 Cell Structure and Function ?
Answer:
Yes, we can download these solutions from as a web page
Question: What are the topics covered in NCERT Class 8 Science chapter 8?
Answer:
Here are the topics covered in NCERT Class 8 Science chapter 8
- Discovery of cell
- The cell
- Organisms show variety in cell number, shape and size
- Cell structure and function
- Parts of the cell
- Comparison of plant cell and animal cell
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