Question 2 :
Phloem transports .............. from ................ to other parts of the plant.
Question 5 :
When water enters in root due to diffusion, it is termed as<br/>
Question 7 :
Passive absorption of water from the soil is mainly affected by<br/>
Question 12 :
Many molecules can move briefly across the membrane without any requirement of energy and special membrane proteins. This is called _________.
Question 13 :
In trees, death of protoplasts is essential for vital function such as<br/>
Question 15 :
Uphill transport i.e., movement of substances from their lower concentration to their higher concentration occurs in
Question 17 :
Choose the correct answer from the alternatives given.<br>Sugars and amino acids are carried into the cell by the sodium- potassium pump by means of
Question 20 :
State whether the following statements are true or false.<br>ATP is required for active transport.
Question 21 :
Attractive forces of cell walls for water molecule is termed as<br>
Question 23 :
Which of the following processes takes place in the presence of ATP?<br/>I. Diffusion<br/>II. Active transport<br/>III. Facilitated diffusion
Question 24 :
Which among the following has a specialised tissue for conduction of water ?<br/>i. Thallophyta<br/>ii. Bryophyta<br/>iii. Pteridophyta<br/>iv. Gymnosperms
Question 25 :
Assertion: In angiosperms, the conduction of water is more efficient because their xylem has vessels.
Reason: Conduction of water by vessel elements in an active process with energy supplied by xylem parenchyma rich in mitochondria.
Question 26 :
The principal pathways by which water is translocated in angiosperms is
Question 28 :
Which one of the following is connected with transport of water in plants?
Question 30 :
The specific proteins responsible for the flow of materials and information into the cell are called as<br/>