Plant Vascular System

Q. Select the correct option:
i. Xylem helps carry water from roots to other parts of plant.
ii. Xylem translocates mineral salts along with descending stream of water.
iii. Transpiration pull is responsible for the translocation of mineral salts in water.

1. Only i is incorrect
2. Both ii and iii are incorrect
3. All are correct
4. Both i and iii are correct

Q. A scientist cuts the stem of a plant. He finds a thick liquid oozing out from the stem. He sent that liquid to a lab for testing. What do you think the results of the lab would be?

1. Mineral salts
2. Both a and b
3. Water
4. None of the above

Q. Ringing/girdling experiment was first performed by

1. Malpighi
2. Godlewski
3. Strasburger
4. Bose

Q. Removal of a ring of bark from the trunk of a tree kills it, because

1. Water can't go up
2. Minerals can't go up
3. Photosynthesis stops
4. Roots get starved

Q. Ringing experiments are performed to demonstrate

1. Ascent of sap through both phloem and xylem.
2. The ascent of sap through phloem and xylem parenchyma.
3. The ascent sap through cortical cells.
4. Ascent of sap through xylem.

Q. Select the correct option:
i. Xylem helps carry water from roots to other parts of plant.
ii. Xylem translocates mineral salts along with descending stream of water.
iii. Transpiration pull is responsible for the translocation of mineral salts in water.

1. Only i is incorrect
2. Both i and iii are correct
3. Both ii and iii are incorrect
4. All are correct

Q. Select the correct option:
i. Xylem helps carry water from roots to other parts of plant.
ii. Xylem translocates mineral salts along with descending stream of water.
iii. Transpiration pull is responsible for the translocation of mineral salts in water.

1. Only i is incorrect
2. Both i and iii are correct
3. Both ii and iii are incorrect
4. All are correct

Q. A scientist cuts the stem of a plant. He finds a thick liquid oozing out from the stem. He sent that liquid to a lab for testing. What do you think the results of the lab would be?

1. Water
2. Mineral salts
3. Both a and b
4. None of the above

Q. A scientist cuts the stem of a plant. He finds a thick liquid oozing out from the stem. He sent that liquid to a lab for testing. What do you think the results of the lab would be?

1. Water
2. Mineral salts
3. Both a and b
4. None of the above

Q. Which of the following is done during ringing experiment?

1. Bark is removed.
2. All the above.
3. Pith is removed.
4. Xylem is removed.

Q. Which of the following plant is ideal to demonstrate 'Ascent of sap'?

1. Rose plant
2. Balsam plant
3. Coconut plant
4. Cucumber plant