Uptake of Mineral Ions
Trending Questions
Q.
How do ions get into the cell?
Q.
The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
Weak gravitational pull
Transpiration pull
Cohesion and adhesion
Lignified thick wall
Q. Plants absorb minerals by _______.
- passive absorption
- active absorption
- plasmolysis
- (a) and (b) above.
Q.
Specific ions are acquired by root hairs by the process of
osmosis
active transport
facilitated diffusion
simple diffusion
Q. Select the correct sequence of pathway of mineral absorption.
- Soil→ endodermis→ epidermis→ xylem
- Soil→ epidermis→ endodermis→ xylem
- Soil→ epidermis→ xylem→ endodermis
- Soil→ endodermis→ xylem→ epidermis
Q. Majority of the minerals are absorbed by active absorption because ________.
- Minerals are present in the form of ions in the soil
- The concentration of minerals is more in the root than soil
- Charged particles can not move across cell membranes
- All of these
Q. Choose the correct set of answers from the options given below.
I. Minerals present in the soil are charged.
II. The concentration of minerals in the root is usually lower than the concentration of minerals in the soil.
III. Most minerals utilizes energy to enter the cytoplasm of epidermal cells.
IV. Majority of the mineral uptake takes place through passive transport.
I. Minerals present in the soil are charged.
II. The concentration of minerals in the root is usually lower than the concentration of minerals in the soil.
III. Most minerals utilizes energy to enter the cytoplasm of epidermal cells.
IV. Majority of the mineral uptake takes place through passive transport.
- I and II
- II and IV
- I and III
- II and III
Q.
Identify the correct statements related to the uptake of mineral ions
A. The membrane proteins pump ions from soil into the cytoplasm of epidermal cells
B. Transport proteins of endodermal cells act as control points, which adjust the quantity and type of solutes reaching the xylem
C. Root endoderm due to its suberin layer, can not transport ions
A & B
B & C
A & C
A, B & C