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Recent questions tagged plant-physiology

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Wax,resin and suberin coating on the surface of plant parts reduce the rate of transpiration}\\\text{Reason:These adaptations are found mostly in xerophytes}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Light is very important external factor of transpiration}\\\text{Reason:Light induces stomatal opening and darkness stomatal closure.Thus the rate of transpiration increases in light and decreases in dark}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:If a bottle filled with volatile substance is opened at a corner of the room the odour of substance can be smelled from another corner}\\\text{Reason:The volatile substances diffuse from the region of higher concentration to the region of lower concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The water molecules are held together from substomatal cavities in leaves to the roots because of cohesive force}\\\text{Reason:Water does not ascend in stem due to transpiration pull}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses -

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:Plasmolysis occurs when the plant cells are highly placed in concentrated sugar or salt solution}\\\text{Reason:Highly concentrated sugar or salt solution acts as hypotonic solution which leads to exosmosis}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses $\begin{array}{1 1}\text{Assertion:The cells of the root have lower water potential than leaf cells }\\\text{Reason:Root cells have greater solute concentration}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Given the Assertion and Reason below, Choose one of the following responses$\begin{array}{1 1}\text{Assertion:Root pressure is the reason for ascent of sap in herbaceous plants}\\\text{Reason:Root pressure is due to diffusion pressure gradient and is maintained by the activity of living cells}\end{array}$

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

Match the items of column I with the appropriate items in column II:

asked Apr 2, 2014 by sreemathi.v

1 answer

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