1. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Nuclear Membrane   Mitochondrion   Nucleolus   Chromoplast   Hint Half-n-half Clue   2. It is a plastid, containing a pigment called chlorophyll. This chlorophyll captures energy from sunlight and helps in the manufacture of food by the process of photosynthesis.   Centrosome   Chloroplast   Chromoplast   Nucleoplasm   Hint       3. It is the house of all metabolic activities and functions in the cell. In other words, it contains most of the cell organelles, each of which perform a specific function.   Nucleus   Endoplasmic Reticulum   Cytoplasm   Leucoplast   Half-n-half Clue   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.   Lysosome   Chromoplast   Centrosome   Ribosome   Half-n-half Clue   5. It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   Ribosome   Nuclear Membrane   Endoplasmic Reticulum   Vacuole   Half-n-half Clue   6. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   Mitochondrion   Cytoplasm   Centrosome   Chloroplast   Half-n-half Clue   7. 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.   Nucleus   Nuclear Membrane   Endoplasmic Reticulum   Vacuole   Half-n-half Clue