Chemical Coordination in Plants

Control and coordination in plants is carried out by

• Gibberellins

• Phytohormones

• Meristematic region of the shoot

• Base of the root

Gibberellin was first discovered by

• Fungi

• Algae

• Bacteria

• Root Hairs

Cytokinins are predominately present in:

• Permanent tissue

• Meristematic tissue

• Endodermis

• Cortical region

On which year , the term “ Hormone” was first used ?

• 1905

• 1989

• 1906

• 1902

Who first contributed in coining the term “ Auxin” ?

• F.W Went

• Skoog & Miller

• Jacobus Boomsma

• 

What is the full form of IAA ?

• Indole 3 – acidic acid  

• Indole 3 –amino acid 

• Indole 3– acetic acid

• Indole -3 ascorbic acid

Which of the following plant(s) possess tendrils ?

• Pisum satvium & Nerium

• Rose, Tea & coffee

• Sweet pea, Cuscata and vines

• Money plant, Tulsi & Lotus

Auxins performs an essential function in

• Geotropism

• Hydrotropism

• Chemotropism

• Phototropism

Which one of the following growth hormone was first discovered in plants ?

• Auxins

• Cytokinins

• Gibberellins

• Ethylene

The Greek term ‘ Auxein ‘ literally implies

• To shrink

• To recede

• To cease

• To grow