NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does “hydrophobic” mean?
A
water loving, associates with water
B
water fearing, does not associate with water
C
a world war II submarine
D
an example would be solutes like sugar or salt
Explanation: 

Detailed explanation-1: -Materials with a special affinity for water-those it spreads across, maximizing contact-are known as hydrophilic. Those that naturally repel water, causing droplets to form, are known as hydrophobic.

Detailed explanation-2: -The terms hydrophobic and polar refer to the overall distribution of charge in a molecule. If there are no local regions of high or low electron density in the molecule, it is called hydrophobic (Greek for “water-fearing"). This term arises because hydrophobic molecules do not dissolve in water.

Detailed explanation-3: -Hydrophobic literally means “the fear of water”. Hydrophobic molecules and surfaces repel water. Hydrophobic liquids, such as oil, will separate from water. Hydrophobic molecules are usually nonpolar, meaning the atoms that make the molecule do not produce a static electric field.

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