CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

FORMATIVE ASSESSMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plant cells have a large, water-filled, membrane-bound organelle that gives them structure and rigidity. What is the name of this organelle?
A
a vessicle
B
a central vacuole
C
a ribosome
D
a lysosome
Explanation: 

Detailed explanation-1: -Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.

Detailed explanation-2: -A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

Detailed explanation-3: -1.2 Vacuoles have multiple functions. The vacuole is enclosed by a membrane, called a tonoplast.

Detailed explanation-4: -Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.

Detailed explanation-5: -A large vacuole can make up around 95% (in some plants) of the plant cell and is rather unique to plants. Also called the central vacuole, its main job is to maintain turgor pressure inside of the plant. Turgor pressure helps the plant keep its shape by pressing the plasma membrane against the cell wall.

There is 1 question to complete.