A : When water potential in the cells of leaves is lowered.
R : Water from leaf cells moves into leaf xylem.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option D
A : When evaportaion is high excess water collects in the form of liquid arround special opening of veins.
R : Such water loss in liquid form is known as guttation.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option A
A : A large amount of water moves through the root cortex along the apoplast pathway.
R : Cells of cortex are loosely packed and no much resistance along them.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option A
A : Effects of root pressure observable at night and early morning.
R :At night and early morning evaporation is very low.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option B
A : Uphill transport is a active transport.
R : In active transport molecules moves in a concentration gradient.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option B
A : In sunflower lower surface of leaf possesses more transpiration.
R : Maximum transpiration occurs through stomata.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option D
A :During photosynthesis sucrose is converted into starch.
R : Sucrose is a non-reducing sugar and hence chemically stable.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option A
A : The development of the \(CO_4\) photosynthetic system is probably one of the strategies for maximizingthe availibility \(ofCO_2\) and minimizing water loss.
R : \(CO_2\) plants are as twice as eifficient as \(CO_2\) plants in term of fixing \(CO_2\)
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option D
A : In a symport two types of molecules move in opposite directions.
R : When a molecule move across a membrane independent of other molecule, a process called uniport.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option C
A : When living a plant cell placed in a hypertonic solution, cell membrane shrinks away from its cell wall.
R : The concentration of vacular sap in a cell is higher than surrounding solution.
A. Both are correct and R is the correct explanation for A.
B. Both are correct and R is the correct not explanation for A.
C. A is correct and R is wrong
D. R is correct and A is wrong
Answer : Option C