EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does water get into the leaves of a plant?
A
it goes into the stomata
B
The roots absorb it and then it travels up the xylem
C
it is made during a chemical reaction in the stem
D
The flowers capture water and deliver it to the leaves
Explanation: 

Detailed explanation-1: -Upon absorption by the root, water first crosses the epidermis and then makes its way toward the center of the root crossing the cortex and endodermis before arriving at the xylem (Figure 4).

Detailed explanation-2: -Plant stems have some very special cells called xylem. These cells form long thin tubes that run from the roots up the stems to the leaves. Their job is to carry water upward from the roots to every part of a plant.

Detailed explanation-3: -Xylem transports water in plants. Water is absorbed from the soil through root hair cells. Water moves by osmosis from root cell to root cell until it reaches the xylem. It is transported through the xylem vessels up the stem to the leaves.

Detailed explanation-4: -The water is absorbed by the root hair and undergoes cell to cell movement by osmosis until it reaches the xylem. This water is then transported through the xylem vessels to the leaves and is evaporated by the process of transpiration. The xylem is also composed of elongated cells like the phloem.

Detailed explanation-5: -Water is passively transported into the roots and then into the xylem via cells of cortex. Plants absorb water from the soil by osmosis. Root hair cells are adapted for this by having a large surface area to speed up osmosis. The forces of cohesion and adhesion cause the water molecules to form a column in the xylem.

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