1. _______ are known as the 'sites of protein synthesis in the cell'.   Fat droplets   Ribosomes   Secretory granules   Mitochondria   Hint Half-n-half Clue   2. The outermost covering of the plant cell is known as the cell membrane.   True   False   3. Ribosomes are found attached on the _______.   smooth endoplasmic reticulum   mitochondrion   rough endoplasmic reticulum   golgi apparatus   Half-n-half Clue   4. The _______ color of flowers and fruits is due to the presence of the xanthophyll pigment.   violet   yellow   blue   green   Half-n-half Clue   5. _______ are known as the 'power-houses of the cell'.   Secretory granules   Ribosomes   Fat droplets   Mitochondria   Half-n-half Clue   6. _______ consist of enzymes, which help in digestion.   Centrosomes   Lysosomes   Plastids   Ribosomes   Half-n-half Clue   7. The lowest level of organization is the _______.   organ   cell   organism   tissue   Half-n-half Clue