EASY
10th ICSE
IMPORTANT
Earn 100

Explain two manifestations of root pressure.

Important Questions on Absorption By Roots

MEDIUM
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 8
Leaves of sensitive plant wilt and droop down on a slight touch, What mechanism brings this change?
EASY
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 9

The leaves of a well-watered potted plant were found wilted during a hot sunny day.

Would the cells of the leaves in the wilted state be flaccid or turgid?

EASY
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 9

The leaves of a well-watered potted plant were found wilted during a hot sunny day.

Explain briefly the meaning of the term flaccid.

MEDIUM
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 9

The leaves of a well-watered potted plant were found wilted during a hot sunny day.

What explanation should you suggest if the wilted leaves did not recover even during the night?

MEDIUM
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 10
Suggest one simple experiment to show that water absorbed by the roots of a plant travels upward through the conducting tissues of the stem.
 
MEDIUM
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 11
What is root pressure? How would you demonstrate it experimentally?
 
MEDIUM
10th ICSE
IMPORTANT
ICSE Self - Study in Biology>Chapter 3 - Absorption By Roots>TEST YOURSELF>Q 12

Match the items in column I with those in column II.

Column I Column II
1. Xylem a. Semipermeable
2. Phloem b. Permeable
3. Cell membrane c. Downward flow of sap
4. Root pressure d. Upward flow of water
5. Cell wall e. Guttation