Question

1. Why does water enter the root hair cells from the soil?
I 算
lype
Draw
A
No Presets
a) The soil has a lower concentration of water than the root cells.
b) The soil has a higher concentration of water than the root cells.
c) The plant actively pumps water using energu.
d) Gravity pushes the water into the roots.
E3
ROOT
SOIL
Water moves IN
2. Which specific cell structure allows water to pass through but blocks larger particles?
a) Semi-permeable membrane
b) Cell wall
c) Nucleus
d) Chloroplast

Answer 1

1. Answer: b) The soil has a higher concentration of water than the root cells.
- Water moves into root hair cells by osmosis: it goes from the region of higher water concentration (soil) into the region of lower water concentration (root cells). This is a passive process — not active pumping or gravity.

2. Answer: a) Semi-permeable membrane
- The plasma (cell) membrane is selectively or semi-permeable, allowing water and some small molecules through while blocking larger particles.