Flowers, fruits and vegetables get different colours due to pigments present in chromoplasts. These pigments produce red, yellow or orange colours, making plant parts attractive.
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Yes, chromoplasts are plastids that contain pigments other than green chlorophyll. They give yellow orange or red colours to different plant parts like fruits and flowers.
Cells use lysosomes to break down waste materials and damaged organelles. These enzymes digest unwanted substances, preventing accumulation and keeping the cell clean and functioning properly.
Yes, mature red blood cells in humans lack a nucleus. This helps them carry more oxygen. Some other specialised cells may also lose their nucleus to perform specific functions efficiently.
The cell membrane surrounds all cells and controls movement of substances. It is selectively permeable, allowing some materials to enter or leave, while protecting and maintaining the cell’s internal environment.