MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

CELL JUNCTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Contractile vacuoles function is for
A
maintaining food vesicles
B
water balance
C
creating lysosomes
D
ejecting poisons
Explanation: 

Detailed explanation-1: -The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.

Detailed explanation-2: -A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It maintains the shape and internal pressure of the cell.

Detailed explanation-3: -In a plant cell, the central vacuole stores water and regulates turgor pressure. Additionally, it forces the cell’s contents toward the membrane, enabling plant cells to absorb more light energy for photosynthesis, the process of turning sunlight into food.

There is 1 question to complete.