Biology,  Daily Quiz

Quiz On Transport in plant

3
Created on By Emily Smith

Transport in plant

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A semipermeable membrane allows entry of

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Read the given statements and select the correct option.
(i) In antiport method, both molecules cross the membrane in the same direction at the same time.
(ii) Aquaporins are membrane proteins which do not set up a concentration gradient.
(iii) Inactive transport the movable carrier proteins are called pumps.
(iv) Active transport and facilitated transport respond to protein inhibitors.

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Select the incorrect statement for the given figure

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In case, the external water is pure, the diffusion pressure deficit (DPD) of a cell is represented by
(OP = Osmotic potential, WP = Wall pressure)

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Sophia kept some freshly cut flowers in a solution of coloured dye. After some time she observed the coloured dye rising up in the flower. When the stem of the flower is held up in light, coloured strands are visible. Identify the components of xylem which is conducting coloured dye up the stem.

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The cohesion force in xylem sap develops due to

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Andy placed a crystal of CuSO4 in a beaker containing water. He observed an intense blue colour around the crystal. Blue colour decreases with the increase of distance from the crystal. Which phenomenon is taking place in this experiment?

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Read the following statements and select the correct one.

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Which of the following causes bleeding in plants?

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Guard cells maintain their electroneutrality by

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Read the following statements and select the correct option stating which ones are true (T) and which ones are false (F).

(i) CO2, pH and hormones have no effect on transpiration.
(ii) Guard cells have ledges to prevent entry of water drops into stomata.
(iii) Glucose helps in decreasing the osmotic concentration of guard cells.
(iv) Red light has been found to be more effective than other wavelengths for opening of stomata.

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Which of the following is not a function of turgor pressure?

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The number of stomata and epidermal cells in 1 mm2 leaf
area of lower epidermis of the leaves of A, B, C (plants) are
given below.
Arrange the plants in increasing order of their stomatal
index and choose the correct option.

Plant cellNo. of stomataNo. of epidermal cells
A40160
B70250
C100410

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Read the following statements and select the incorrect one

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Read the following statements and select the incorrect one

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Ion channels are often gated, K+ channel in nerve conduction is

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