MEDIUM
7th Foundation
IMPORTANT
Earn 100

Study the given flow chart carefully and select the option which is a correct match of xylem and phloem?

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  Xylem Phloem
(A) P R
(B) R S
(C) S R
(D) Q R

50% studentsanswered this correctly

Important Questions on Transportation in Plants and Animals

HARD
7th Foundation
IMPORTANT

Read the given differences between X, Y and Z.

S. No. X Y Z
(i) They are thin walled vessels with a small lumen. They are thick walled vessels with narrow lumen.     They are thin walled vessels with wide lumen.
(ii) They deliver blood to the body cells. They carry blood away from the heart. They bring blood towards the heart.
(iii) They are placed very deep. They are situated in the deeper regions of the body. They are superficially situated.
(iv) They carry both oxygenated and deoxygenated blood. They carry oxygenated blood, except one. They carry deoxygenated blood, except one.

Select the correct statement regarding X, Y, and Z.

MEDIUM
7th Foundation
IMPORTANT

Refer to the given figure of blood cells and select the correct statements regarding X, Y, and Z.

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(i) X plays a key role in transporting waste carbon dioxide from the tissues to the lungs.
(ii) The pigment present in Z absorbs oxygen and transports it to the cells all over the body.
(iii) X is able to move on their own.
(iv) Y helps the blood to clot whenever there is a wound on the body.
(v) Y is important part of our immune system.
(vi) Z produces special protein substances, i.e., antibodies that protect us from infection.

HARD
7th Foundation
IMPORTANT
Mukta conducted an experiment in which two potato tubers X and Y (of equal size) were peeled and a cavity was made in each of them. X was boiled while Y was not. The cavities in the both tubers were filled with sugar solution and they were then placed in beakers containing distilled water. Select the correct statement regarding the result of this experiment.
MEDIUM
7th Foundation
IMPORTANT

Refer to the given figure of a sectional view of a blood vessel having a valve. Select the correct statement regarding it.

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