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Do you know any other cells without nucleus?
Yes, mature red blood cells (RBCs) in humans do not have a nucleus. This allows more space for haemoglobin, increasing oxygen-carrying capacity. Some specialised cells may also lack a nucleus or lose it during development to perform specific functions more efficiently, although most cells generallyRead more
Yes, mature red blood cells (RBCs) in humans do not have a nucleus. This allows more space for haemoglobin, increasing oxygen-carrying capacity. Some specialised cells may also lack a nucleus or lose it during development to perform specific functions more efficiently, although most cells generally contain a nucleus for controlling activities.
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 lessHow does the cell prevent these wastes from accumulating inside it?
Cells prevent waste accumulation using lysosomes, which contain digestive enzymes. These enzymes break down waste materials, old organelles and harmful substances into simpler components. The breakdown products can be reused by the cell. This cleaning process maintains cell health and prevents harmfRead more
Cells prevent waste accumulation using lysosomes, which contain digestive enzymes. These enzymes break down waste materials, old organelles and harmful substances into simpler components. The breakdown products can be reused by the cell. This cleaning process maintains cell health and prevents harmful buildup, ensuring proper functioning of the cell.
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 lessAre there any other plastids in plant cells that contain any pigments other than the green pigments?
Yes, apart from chloroplasts, plants have chromoplasts that contain pigments other than green chlorophyll. These pigments may be yellow orange or red. Chromoplasts are responsible for the bright colours seen in flowers and fruits. These colours help attract pollinators and animals, aiding in pollinaRead more
Yes, apart from chloroplasts, plants have chromoplasts that contain pigments other than green chlorophyll. These pigments may be yellow orange or red. Chromoplasts are responsible for the bright colours seen in flowers and fruits. These colours help attract pollinators and animals, aiding in pollination and seed dispersal processes.
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 lessHow do flowers, fruits and vegetables acquire varied colours?
Plants acquire varied colours because of pigments present in plastids called chromoplasts. These pigments include carotenoids and others that give red, yellow and orange colours. The colours help attract pollinators and animals for seed dispersal. Chlorophyll gives green colour, while other pigmentsRead more
Plants acquire varied colours because of pigments present in plastids called chromoplasts. These pigments include carotenoids and others that give red, yellow and orange colours. The colours help attract pollinators and animals for seed dispersal. Chlorophyll gives green colour, while other pigments create diversity in plant appearance.
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 lessVacuoles — The organelles for storage and support. Explain.
Vacuoles are membrane-bound organelles that store water, minerals, sugars and waste products. In plant cells, a large central vacuole maintains turgor pressure, which keeps the cell firm and supports the plant structure. In animal cells, vacuoles are smaller and help in temporary storage and transpoRead more
Vacuoles are membrane-bound organelles that store water, minerals, sugars and waste products. In plant cells, a large central vacuole maintains turgor pressure, which keeps the cell firm and supports the plant structure. In animal cells, vacuoles are smaller and help in temporary storage and transport of substances.
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 less