Concept explainers
To fill:
The correct term in the given blank.
Introduction:
A cell is a basic structure of an organism. Every cell has a nucleus and some cell organelles that help in carrying out various functions. These organelles are chloroplasts, mitochondria, Golgi apparatus, lysosomes, vacuoles ribosomes, etc.

Answer to Problem 21A
Vacuole stores wastes.
Explanation of Solution
Cells have membrane bound vesicles called vacuoles for temporary storage of materials. It is a sac like structure that can store food, enzymes and other materials needed by a cell. Some vacuoles also store waste products. Vacuoles are usually present in plant cells. In animal cells, they are either too small or absent.
Chapter 7 Solutions
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