1. Cell Membrane   It is a green-colored plastid. It contains a pigment called chlorophyll.   It is a membranous sac budded off from the golgi apparatus. It contains several types of enzymes.   It contains most of the cell organelles. It is composed of a mixture of water and soluble organic & inorganic compounds.   It has a living, flexible and thin structure. It possesses fine pores, making it semi-permeable. It is chiefly composed of lipo-proteins.   Hint Hint       2. Vacuole   It is a clear space filled with water or other substances in the form of solutions. It has a covering called tonoplast.   It consists of an irregular network of double-walled tubular membrane. It does not have ribosomes attached to it.   It is made up of stacks of flattened membranous sacs. It mainly consists of vesicles, vacuoles and tubules.   It consists of an irregular network of double-walled tubular membrane. It has ribosomes attached to it.   Hint       3. Cell Wall   It is a plastid that is colored differently in different cells. It contains pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color).   It has a non-living, rigid structure. It is freely permeable and is chiefly composed of cellulose.   It is round in shape. It is contained in the nucleus of the cell.   It has numerous pores, making it semi-permeable. It is the covering of the nucleus of the cell.   Hint       4. Centrosome   It is chiefly composed of a dense fluid. It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid).   It is a green-colored plastid. It contains a pigment called chlorophyll.   It contains one or two centrioles, and is surrounded by microtubules or the centrosphere. It is situated near the nucleus.   It is the largest cell organelle. It has a dense structure. It is spherical in shape.   Half-n-half Clue   5. Nucleoplasm   It is a green-colored plastid. It contains a pigment called chlorophyll.   It consists of an irregular network of double-walled tubular membrane. It does not have ribosomes attached to it.   It is a plastid that is colored differently in different cells. It contains pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color).   It is chiefly composed of a dense fluid. It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid).   Half-n-half Clue   6. Chloroplast   It is a plastid that is colored differently in different cells. It contains pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color).   It is a green-colored plastid. It contains a pigment called chlorophyll.   It consists of an irregular network of double-walled tubular membrane. It does not have ribosomes attached to it.   It is chiefly composed of a dense fluid. It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid).   Hint       7. Mitochondrion   It has a vesicular structure. It is formed when the substances produced in the endoplasmic reticulum are further processed in the golgi apparatus.   It contains one or two centrioles, and is surrounded by microtubules or the centrosphere. It is situated near the nucleus.   It is a colorless plastid. It contains starch.   It has a double-walled structure. Its inner wall is produced into folds known as cristae. It is generally sausage-shaped.   Half-n-half Clue