EVERYDAY SCIENCE

SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by ____
A
Facilitated Diffusion
B
Simple Diffusion
C
Active Transport
D
Osmosis
Explanation: 

Detailed explanation-1: -The soil is at a lower concentration than the root hair cells. Hence, water moves from the soil to the root hair cells by the process of osmosis. Osmosis is the movement of water molecules from a region of low concentration to high concentration through a semipermeable membrane.

Detailed explanation-2: -The concentration of mineral nutrient elements is higher inside the root-hairs than in the surrounding soil because the absorption of mineral elements from the soil involves active transport by the cells.

Detailed explanation-3: -Diffusion: The soil water enters from the higher concentration to the lower concentration by the process of diffusion.

Detailed explanation-4: -Root hair absorbs water from soil through osmosis. Water will be absorbed by root hairs by osmosis as the environment in the soil is hypotonic. This kind of absorption takes place passively. The water can easily move from the region of higher concentration to the low concentration without expenditure of energy.

Detailed explanation-5: -In plants, water enters the root cells by osmosis and moves into tubes called xylem vessels to be transported to the leaves.

There is 1 question to complete.