EVERYDAY SCIENCE

Detailed explanation-1: -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-2: -The vacuole is enclosed by a membrane, called a tonoplast. The number and size of the vacuoles in different plant cells vary greatly. Young cells contain a larger number of smaller vacuoles but, taken as a whole, occupy only a minor part of the cell volume.

Detailed explanation-3: -A tonoplast is actually the membrane that surrounds the large vacuole in a mature plant cell. We get the name ‘tonoplast’ from Greek, which translated looks something like ‘tone, tension, stretching, and molded.

Detailed explanation-4: -The vacuoles are surrounded by a membrane called tonoplast and filled with cell sap. Also called the vacuolar membrane, the tonoplast is the cytoplasmic membrane surrounding a vacuole, separating the vacuolar contents from the cell’s cytoplasm.

Detailed explanation-5: -Membrane-bound organelles are cellular structures that are bound by a biological membrane. The membrane may be a single layer or a double layer of lipids and typically with interspersed proteins.