PLANT PHYSIOLOGY

1.     Phytochrome is a --------------------------proteinaceous plant pigment.

• Blue

• Red

• Green

• White

1.     The chilling of seeds by placing them in different layers of soil is called --------------------.

• Seed stratification

• Soil stratification

• Soil Scarification

• Seed Scarification

In seed germination, the embryonic axis synthesizes -----------------------acid which is responsible for the synthesis of alpha amylase.

• giberellic

• glycolic

• malic

• acetic

-------------------------can be described as a temperature when a liquid starts turning into ice.

• Freezing

• Blanching

• Icing

• Chilling

The surface tension of water is high and equals 72 mN/m at the temperature of 25°C

• True

• False

The unit of water potential is --------------.

• Pascal                     

• all of these

• Wartz  

• Ohm 

The --------------- are proteins that forms huge pores in the outer membrane of the plastids, mitochondria etc.

• porins 

• poroserines 

• pectoporins

• poromembranes

Imbibition is a phenomenon of adsorption of water or any other liquid by the solid particles of a substance without forming a solution

• True

• False

A solution has a higher solute concentration compared to the intracellular solute concentration.

• hypertonic    

• hypotonic

• Isotonic    

• Osmotic

Which is the common pathway for both aerobic and anaerobic pathways?

• Glycolysis

• Krebs cycle

• TCA cycle

• Citric acid cycle