1. The network of convoluted tubules is called the _______.   golgi apparatus   mitochondrion   microtubule   endoplasmic reticulum   Hint Half-n-half Clue   2. The green color of leaves is due to the presence of the _______ pigment.   chlorophyll   xanthophyll   carotene   anthocyanin   Half-n-half Clue   3. _______ are known as the 'sites of intracellular digestion'.   Ribosomes   Secretory granules   Lysosomes   Mitochondria   Half-n-half Clue   4. _______ are known as the 'sites of protein synthesis in the cell'.   Fat droplets   Mitochondria   Ribosomes   Secretory granules   Half-n-half Clue   5. Ribosomes are found attached on the _______.   rough endoplasmic reticulum   mitochondrion   golgi apparatus   smooth endoplasmic reticulum   Half-n-half Clue   6. The outermost covering of the plant cell is known as the cell membrane.   True   False   7. The lowest level of organization is the _______.   organism   cell   organ   tissue   Half-n-half Clue