1. Golgi Apparatus   It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.   It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Hint Hint       2. Mitochondrion   It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   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.   It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Half-n-half Clue   3. Ribosome   It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.   It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   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.   Half-n-half Clue   4. Nucleolus   It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Half-n-half Clue   5. Vacuole   It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   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.   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.   It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Hint       6. Centrosome   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.   It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   It synthesizes and secretes certain substances, namely hormones and enzymes. It also helps in the formation of acrosome of sperm.   It performs intracellular digestion. It also helps in destroying foreign substances.   Half-n-half Clue   7. Nuclear Membrane   It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   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.   It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   Half-n-half Clue