An abstract is a brief summarizing statement, usually between 75 and 150 words long. It gives thereader a synopsis of the problem, method, results, and conclusions of yourdocument. The abstract takes the form of a paragraph, usually with 5-10 sentences. It appears atthe top of a journal article, just under the title, or on the page following the title page of a report. In the latter instance, the abstract appears on a page by itself.
Quick Answer. A vacuole is a fluid-filled sac that stores food and water in cells. Vacuoles are most commonly found in plant cells, but they also exist in some bacteria and animal cells. Continue Reading.
Vacuole: This is a large room in the center of the cell, it stores sugars and salts and controls movement of water in and out of the cell. Animal cells store sugars in glycogen form but plant cells store it as starch. Animal cells have an irregular shape but plant cells have a regular shape.