1. _______ consist of enzymes, which help in digestion.   Ribosomes   Lysosomes   Plastids   Centrosomes   Hint Half-n-half Clue   2. The _______ color of flowers and fruits is due to the presence of the xanthophyll pigment.   yellow   violet   green   blue   Half-n-half Clue   3. The green color of leaves is due to the presence of the _______ pigment.   xanthophyll   carotene   chlorophyll   anthocyanin   Half-n-half Clue   4. The cell membrane is also known as the _______ membrane.   pleural   plasma   parietal   placental   Half-n-half Clue   5. The outermost covering of the plant cell is known as the cell membrane.   True   False   6. _______ are known as the 'power-houses of the cell'.   Fat droplets   Secretory granules   Ribosomes   Mitochondria   Half-n-half Clue   7. The network of convoluted tubules is called the _______.   golgi apparatus   mitochondrion   endoplasmic reticulum   microtubule   Half-n-half Clue