1. 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.   Golgi Apparatus   Nucleus   Chromoplast   Cell Wall   Hint Half-n-half Clue   2. It provides shape to the cell. It is semi-permeable, regulating the entry and exit of substances, namely solutes and ions.   Cell Wall   Cell Membrane   Nucleoplasm   Nucleolus   Hint       3. 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.   Cell Wall   Nucleolus   Cell Membrane   Golgi Apparatus   Hint       4. It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.   Leucoplast   Nuclear Membrane   Golgi Apparatus   Centrosome   Hint       5. It is a plastid. It helps in the storage of starch.   Nuclear Membrane   Leucoplast   Lysosome   Vacuole   Half-n-half Clue   6. It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   Endoplasmic Reticulum   Cytoplasm   Nuclear Membrane   Cell Membrane   Half-n-half Clue   7. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   Cell Membrane   Chloroplast   Mitochondrion   Chromoplast   Half-n-half Clue