CBSE
Multiple Choice QuestionsLiving. cells placed in isotonic solution (0.9% saline) retain their size and shape. This is based on the concept of
osmosis
diffusion
facilitated diffusion
transpiration
Pick the reaction from the following, where a water molecule is removed and reduction of NAD+ does not occur in the reactions of respiration.
I. Succinic acid Fumaric acid
II. Malic acid Oxaloacetic acid
III. 2-phosphoglycerate phosphoenol pyruvic acid
IV. Pyruvic acid Acetyl Co-A
The correct answer is
I, IV
I, II
II, III
I, III
In which one of the following, expenditure of energy is required?
Osmosis
Diffusion
Active transport
Passive transport
Identify the wrong statement.
The degree of decrease of chemical potential of water depends on concentration of solute
Bacteria and fungal spores are killed when they enter into pickels and jams due to plasmolysis
The process of water excudation is called transpiration
Reverse plasmolysis will occur when flaccid cells are placed in hypotonic solution
Guttation is a process of loss of water in
liquid form containing dissolved minerals
liquid form without dissolved minerals
vapour form with minerals
vapour form without minerals
In higher plants, continuity of cytoplasm from one cell to its neighbouring cells is established through
apoplast
chloroplast
leucoplast
symplast
With reference to water potential of a plant cell, the relationship is represented by
Which of the following criteria does not pertain to facilitated transport?
Requirement of special membrane proteins
High selectivity
Transport saturation
Uphill transport
A plant cell becomes turgid due to
plasmolysis
exosmosis
endosmosis
electrolysis
Engulfing ofsolid materials by cells is called
pinocytosis
phagocytosis
active transport
autolysis
