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How do Normal Cells Grow and Divide?
Normal cells grow and divide through a controlled process called cell division. Cells first grow and then divide to form new cells. This helps in body growth, repair of damaged tissues and replacement of old cells. The process occurs in an organised manner to maintain proper functioning and balanceRead more
Normal cells grow and divide through a controlled process called cell division. Cells first grow and then divide to form new cells. This helps in body growth, repair of damaged tissues and replacement of old cells. The process occurs in an organised manner to maintain proper functioning and balance within the body.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessInstead of many small ones, why does a cell not have a single giant mitochondrion? How does this relate to the concept of surface area?
Having many small mitochondria increases the total surface area available for cellular respiration. A larger surface area allows more chemical reactions to occur efficiently. If there were a single large mitochondrion, the surface area relative to volume would decrease, reducing efficiency. MultipleRead more
Having many small mitochondria increases the total surface area available for cellular respiration. A larger surface area allows more chemical reactions to occur efficiently. If there were a single large mitochondrion, the surface area relative to volume would decrease, reducing efficiency. Multiple mitochondria also ensure proper energy distribution across the cell, supporting all activities effectively.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessIf the skin cells start dividing by meiosis instead of mitosis, what do you think will happen to a cut on the skin?
Skin cells normally divide by mitosis to produce identical cells for repair. If they divided by meiosis, the resulting cells would have half the chromosome number and genetic differences. This would disturb normal functioning, preventing proper tissue repair. As a result, wounds would not heal correRead more
Skin cells normally divide by mitosis to produce identical cells for repair. If they divided by meiosis, the resulting cells would have half the chromosome number and genetic differences. This would disturb normal functioning, preventing proper tissue repair. As a result, wounds would not heal correctly, affecting body maintenance and survival.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessWhat happens if meiosis and mitosis do not happen properly?
If mitosis does not occur properly, it can lead to uncontrolled cell division, causing tumours or cancer. Errors in meiosis may result in genetic disorders due to incorrect chromosome numbers. It can also cause infertility or developmental problems. Proper functioning of both processes is essentialRead more
If mitosis does not occur properly, it can lead to uncontrolled cell division, causing tumours or cancer. Errors in meiosis may result in genetic disorders due to incorrect chromosome numbers. It can also cause infertility or developmental problems. Proper functioning of both processes is essential for growth, repair and healthy reproduction in organisms.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessNCERT Solutions for Class 9 Sanskrit Sharada Chapter 1 Question Answer
Chapter 1 “सत्यं शिवं सुन्दरं संस्कृतम्” in Class 9 Sanskrit Sharada (2026–27) describes the greatness and beauty of the Sanskrit language. It highlights how Sanskrit is pure, meaningful and deeply connected with Indian culture and knowledge. The chapter shows why Sanskrit is considered a divine andRead more
Chapter 1 “सत्यं शिवं सुन्दरं संस्कृतम्” in Class 9 Sanskrit Sharada (2026–27) describes the greatness and beauty of the Sanskrit language. It highlights how Sanskrit is pure, meaningful and deeply connected with Indian culture and knowledge. The chapter shows why Sanskrit is considered a divine and valuable language focuses its role in literature, scriptures, traditions and interest towards learning it. (सत्यं शिवं सुन्दरं संस्कृतम् अध्याय में – संस्कृतं भारतदेशस्य सम्पदस्ति । भारतीयैकतासाधकं संस्कृतम, संस्कृत भाषा की सुंदरता, पवित्रता और महत्व को बताया गया है। यह सिखाता है कि संस्कृत हमारी संस्कृति और ज्ञान का महत्वपूर्ण आधार है।)
For more NCERT Solutions of Class 9 Sanskrit Sharada (संस्कृत शारदा) Chapter 1 सत्यं शिवं सुन्दरं संस्कृतम् Question Answer (2026-27):
https://hindi.tiwariacademy.com/ncert-solutions/class-9/sanskrit/sharada-chapter-1/
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