Question

Identify the correct pair of statements from the following.

• A. The attraction between two water molecules in xylem vessels is called as 'adhesion'.
• B. The number of molecules of $O_2$ absorbed is more than the number of $C{O}_2$ molecules released when one molecule of triolein is completely oxidized in respiration.
• C. Bacillus mycoldes is a nitrifying bacterium.
• D. Continuous system of cell walls and intercellular spaces in plant tissue is called apoplast.

Answer 1

The correct option is D Continuous system of cell walls and intercellular spaces in plant tissue is called apoplast.

In adhesion, water rises in the narrow vessels because water molecules are attracted to the walls of the vessels. The adhesion is the interaction of the water molecules with the cells of xylem.

The RQ for triolein is 0.71. The number of molecules of CO22 molecules released when one molecule of triolein is completely oxidized in respiration.

Bacillus mycoldes is a Gram-positive, non-motile ammonifying bacterium.

The apoplast is the space outside the plasma membrane within which material can diffuse freely. This is the region which includes the cell walls and the intercellular spaces.

Therefore, the correct answer is option D.