wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

__________ element is needed for the synthesis of auxins.

A
Molybdenum
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Potassium
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Zinc
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Copper
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Zinc
Auxins are phytohormones that play a major role in various physiological activities of plants. Zinc is essential for the synthesis of tryptophan, which is a precursor of auxins like IAA (Indole-3-acetic acid). Hence, zinc is needed for the biosynthesis of auxins.
Molybdenum is a component of several enzymes like nitrogenase that helps in nitrogen fixation.
Copper is involved in several redox reactions while potassium helps in protein synthesis, cation-anion balance and opening and closing of stomata.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon