NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When waste is created, a vacuole will capture the waste and take it to the cell membrane. Here the plasma membrane of the vacuole merges with the plasma membrane of the cell. Contractions occur and the waste is spewed back out into the interstitual fluidl.
A
Endocytosis
B
Exocytosis
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -Vacuoles are formed when vesicles, released by the endoplasmic reticulum and Golgi complex, merge together. Newly developing plant cells typically contain a number of smaller vacuoles.

Detailed explanation-3: -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-4: -Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles.

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