Most of the movement in roots through apoplast is due to

(1) Cortical cells are loosely packed and hence no resistance to water movement

(2) Endodermal cells are loosely packed and hence no resistance to water movement

(3) Pericycle cells are loosely packed and hence no resistance to water movement

(4) Medullary cells are loosely packed and hence no resistance to water movement

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Casparian strip makes

(1) Endodermis impervious

(2) Inner layer of cortex impervious

(3) Outer layer pervious

(4) More than one option is correct

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


The movement of water through apoplast stops at the level of ……..And crosses membrane to undergo symplast till xylem cells

(1) Endodermis

(2) Starch sheath

(3) Inner layer of cortex

(4) All of these

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


The path of water in xylem vessels and tracheids is

(1) Symplast

(2) Apoplast

(3) Both A and B

(4) Depends on gradient

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Mycorrhiza

Find the incorrect statement.

(1) Symbiotic association of fungus with root system

(2) Fungal hyphae have a very large surface area that absorb mineral ions and water from the soil

(3) Hyphae can go to downwards in depth and cause absorption of much larger volume of soil that perhaps a root cannot do

(4) Roots provide sugar and S containing compounds to the mycorrhizae

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Pinus has an/a…….. association with mycorrhizae and their …….. without the presence of mycorrhizae.

(1) Obligate, seeds cannot germinate

(2) Facultative, fruits cannot disperse

(3) Obligate, roots can not spread down the soil

(4) Facultative, leaves cannot perform photosynthesis.

Subtopic:  Water Absorption |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Various ions from the soil are transported by the means of
1. Facilitated Transport
2. Plasmolysis
3. Active transport
4. Imbibition

Subtopic:  Ascent of Sap | Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Root pressure

(1) Pushing pressure

(2) Negative pressure

(3) Tries to cope up with water requirement of well heighted plants

(4) Effects are observed at day time and evening time

Subtopic:  Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Water loss in liquid phase from the tip of the grass blades and leaves of herbaceous parts is called

(1) Evaporation

(2) Transpiration

(3) Guttation

(4) Solarization

Subtopic:  Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level:


Following are some statements which ones are not incorrect?
a. Root pressure only provide a modest push in the overall process of water transport
b. Root Pressure obviously does not play a major role in water movement up tall trees
c. The greatest contribution of root pressure may be to re-establish the continuous chains of water molecules in the xylem which often break under the enormous tensions created by transpiration
d. Most of the plants meet their need by transpiratory pull
e. The exudate of guttation has pure water only
1. a,b,d,e
2. a,b,c,d
3. b,c,d,e
4. c,d,e

Subtopic:  Transpiration & Guttation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: