1. _______ consist of enzymes, which help in digestion.   Plastids   Ribosomes   Lysosomes   Centrosomes   Hint Half-n-half Clue   2. A group of cells performing a specific function constitute a tissue.   True   False   3. The _______ color of flowers and fruits is due to the presence of the xanthophyll pigment.   yellow   violet   green   blue   Half-n-half Clue   4. The lowest level of organization is the _______.   organ   organism   tissue   cell   Half-n-half Clue   5. The green color of leaves is due to the presence of the _______ pigment.   anthocyanin   chlorophyll   carotene   xanthophyll   Half-n-half Clue   6. Which of the following cell organelles is found in the plant cell but not in the animal cell?   Ribosome   Chloroplast   Mitochondrion   Endoplasmic Reticulum   Half-n-half Clue   7. The outermost covering of the plant cell is known as the cell membrane.   True   False