1. It performs intracellular digestion. It also helps in destroying foreign substances.   Lysosome   Endoplasmic Reticulum   Nucleolus   Cell Membrane   Hint Half-n-half Clue   2. It is a plastid. It helps in the storage of starch.   Endoplasmic Reticulum   Leucoplast   Chromoplast   Chloroplast   Half-n-half Clue   3. It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid). After cell division takes place, these chromatin fibres undergo certain structural changes, and are called chromosomes. These chromosomes carry the hereditary information of the genes.   Endoplasmic Reticulum   Golgi Apparatus   Nucleolus   Nucleoplasm   Half-n-half Clue   4. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   Nucleolus   Nucleoplasm   Mitochondrion   Nuclear Membrane   Half-n-half Clue   5. 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.   Chloroplast   Vacuole   Golgi Apparatus   Centrosome   Hint       6. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Nucleolus   Ribosome   Chromoplast   Cell Membrane   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.   Vacuole   Leucoplast   Nucleoplasm   Nuclear Membrane   Half-n-half Clue