1. It provides shape to the cell. It is semi-permeable, regulating the entry and exit of substances, namely solutes and ions.   Vacuole   Chromoplast   Cytoplasm   Cell Membrane   Hint Hint       2. It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.   Mitochondrion   Nucleoplasm   Chloroplast   Golgi Apparatus   Hint       3. It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Chloroplast   Nucleolus   Ribosome   Vacuole   Hint       4. It is a plastid, containing pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color). These pigments impart color to flowers and fruits of plants.   Cytoplasm   Cell Wall   Nucleoplasm   Chromoplast   Half-n-half Clue   5. It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell.   Chloroplast   Nuclear Membrane   Vacuole   Cell Membrane   Half-n-half Clue   6. It provides protection, shape and rigidity to the cell. It is freely permeable, allowing substances in the form of solutions to enter and leave the cell without any hindrance.   Nuclear Membrane   Cell Wall   Nucleolus   Chloroplast   Hint       7. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Cytoplasm   Ribosome   Nucleolus   Nucleus   Half-n-half Clue