HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which force directly causes water molecules to stick to the xylem wall?
A
tension
B
cohesion
C
adhesion
D
gravity
Explanation: 

Detailed explanation-1: -Root pressure is the force that pulls water into the xylem from the roots. Root pressure forces water into the cell walls of the phloem to be transported around the plant.

Detailed explanation-2: -The cohesion forces make water molecules stick to each other and adhesion forces cause water molecules to stick to the xylary elements.

Detailed explanation-3: -Water molecules are bent so the hydrogen atoms are to one side of the oxygen atom. and when it come to molecules opposites attract. A bond forms between the negative side of one water molecule and the positive side of another. At that is what gives water its stickiness.

Detailed explanation-4: -Cohesion: Water is attracted to water. Adhesion: Water is attracted to other substances.

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