EVERYDAY SCIENCE

SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which organelle often takes up much of the volume of a plant cell?
A
lysosome
B
vacuole
C
mitochondrion
D
golgi apparatus
Explanation: 

Detailed explanation-1: -Vacuoles, cellular membrane-bound organelles, are the largest compartments of cells, occupying up to 90% of the volume of plant cells.

Detailed explanation-2: -Structure and Function of Vacuoles in Plant and Fungi Cells Plant cell central vacuoles take up an enormous percentage of the cell, sometimes over 90% of cell space, although 30-50% is more common. Surrounding the vacuoles in mature plant cells is an additional thin membrane called a tonoplast.

Detailed explanation-3: -Scientists discovered that a distinct organelle, the vacuole, plays a critical role in regulating the delivery of CO2 to the photosynthesis-conducting chloroplasts. Plant vacuoles are fluid-filled organelles bound by a single membrane called the tonoplast, and contain a wide range of inorganic ions and molecules.

Detailed explanation-4: -Many plant cells have a large, single central vacuole that typically takes up most of the room in the cell (80 percent or more). Vacuoles in animal cells, however, tend to be much smaller, and are more commonly used to temporarily store materials or to transport substances.

Detailed explanation-5: -Plant cells contain vacuoles. Most adult plant cells have one large vacuole that takes up more than 30% of the cell’s volume. At certain times and conditions the vacuole takes up as much as 80% of the cell’s volume! In addition to storing wastes and water, the vacuole also helps to support the cell.

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