Download App

Plant Growth and Development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPlant Growth and Development1 Mark
MCQ
The substance that accelerates the elongation in the stem is:
  • A
    Auxin
  • B
    Cytokinin
  • C
    Enzyme
  • D
    Vitamin
✓

Answer

  1. Auxin

Explanation:

Auxins promote stem elongation.a

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Plant Growth and Development→Plant Growth and Development — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Electron microscopic studies of the sarcomeres have revealed that during muscle contraction
→
Epidermis is absent in:
→
All vertebrates possess:
→
Choose correct option from given characters.

$1$. Function : move particles in specific direction.

$2$. Present in the inner surface of hollow organs.

→
During gamete formation, the enzyme recombinase participates during
→
Esterase enzyme belongs to which of the following class:
→
Which of the following doesn't have any membranous covering:
→
Which factors favour the binding of $CO_2$ with $Hb$ in tissues?
→
A person with blood group $- AB$ has
→
Match the following and choose the correct option.
 
Column I
 
Column II
A
Adiopose
i.
Nose
B
Stratified epithelium
ii.
Blood
C
Hyaline cartiage
iii.
Skin
D
Fluid connective tissue 
iv.
Fat storage
    →