Translocation of carbohydrate nutrients usually occurs in the form of

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Important Questions on Mineral Nutrition

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

To overcome the abnormality of reduction in fruit production and transfer of carbohydrates, which nutrients should be mixed in soil?

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

Arrange the given events that occur in phloem for removal of water from phloem to xylem:

I)

Incoming sugars are actively transported out and removed as complex carbohydrates.

II)

Increase of water potential.

III)

Increase of hydrostatic pressure in sieve tubes.

IV)

Transport of water into sieve tubes by osmosis.

MEDIUM

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

Choose the correct order of statements regarding the translocation of sucrose.
A) Loading of sugars into phloem setup a water potential gradient that facilitates mass movement in phloem.
B) Sucrose moves into companion cell and then to phloem sieve tube cell by active transport.
C) A hypertonic condition in phloem facilitating water from the xylem into phloem by osmosis.
D) All sink sugars are transported out of the phloem producing high water potential with returning of water to xylem.
E) With increase in hydrostatic pressure in phloem pressure flow begin and sap moves through phloem.

EASY

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

That the cell membrane is selectively permeable can be best deduced by

EASY

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

Gradient pressure was given as a possible mechanism of translocation of food by:

EASY

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

The parts through which sugars flow from one cell to others are known as:

EASY

Biology>Plant Physiology>Mineral Nutrition>Absorption and Translocation of Elements

Column I lists some principles pertaining to physiology of plants. Column II lists the names of scientists, who proposed the idea. Match the two columns. Identify the correct choice from the given options.

Column-I	Column- II
(A) Mass-flow hypothesis	(1) J C Bose
(B) Relay pump theory	(2) Strasburger
(C) Transpiration pull theory	(3) Munch
(D) Pulsatile movement theory	(4) Godlewski
	(5) Dixon and Jolly