8. Cell-Structure and functions Class 8 Science [LATEST] Solutions Additional Questions With Solutions in English - CBSE Study
NCERT Solutions for Class 8 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 8. Cell-Structure and functions with detailed explanations and step-by-step answers for better exam preparation. Each Additional Questions With Solutions is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 8 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 8 English Medium Science All Chapters:
8. Cell-Structure and functions
5. Additional Questions With Solutions
Additional Question With Solutions
Ques: What are chromosomes?
Ans: The nucleus contains thread-like structures called chromosomes.
Ques:What are genes?
Ans: Genes control the transfer of hereditary characteristic from parent to offspring; it is carried by the chromosomes.
Ques:What is protoplasm?
Ans: The all entire contents of a living cell is known as protoplasm.
Ques:When can the chromosomes be seen?
Ans: Chromosomes can be seen only when the cell divides.
Ques:Which component of a cell is called the living substances of the cell?
Ans: Protoplasm.
Ques:What is chloroplast? Write its functions.
Ans: Green colour plastid is called chloroplast.
Functions of chloroplast:
(i) It provides green colour to the leaves.
(ii) It is essential for photosynthesis.
Ques: Name the components or organelles of cytoplasm in an animal cell.
Ans: The components or organelles of cytoplasm in an animal cell.
(i) Mitochondria
(ii) Golgi body
(iii) Vacuole
(iv) Ribosome
(v) Lisosome
Ques: Explain why chloroplasts are found only in plant cell?
Ans: The plants make their food themselves by the process of photosynthesis. Photosynthesis needs chlorophyll, which is called chloroplast. It also provides the green pigment to the plants’ leaves. So it is very important for the plants.
Ques:Cells are the basic structural units of living organism; explain.
Ans: Bricks are assembled to make a building. Similarly, cells are assembled to make the body of every organism. The brick is unit part of the building. Thus, cells make tissue; tissues make organs; and various organs make together the body. So we can say cells are the basic structural units of living organism
Topic Lists: