Download App

STD 11 - 13. Plant growth and development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
A plant placed near a window bends outwards because
  • A
    Its tip is able to get more oxygen
  • B
    Its tip is able to obtain more light
  • C
    Its tip is able to receive necessary warmth
  • ✓
    The auxin contents on the shadow side is higher than that on the lighter side and as a result the shaded side elongate more than the cells on the illuminated side and the tip bends outwards
✓

Answer

Correct option: D.
The auxin contents on the shadow side is higher than that on the lighter side and as a result the shaded side elongate more than the cells on the illuminated side and the tip bends outwards
d
(d)Plant bends outwards when it placed near window because auxin responsible for the phototropism movement.

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 STD 11 - 13. Plant growth and development→STD 11 - 13. 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

Rate of breating is controlled by
→
Which one of the following group of fungi is sometimes known as "fungal waste basket"
→
Which one of the following organisms is correctly matched with its three characteristics?
→
Phyllotaxis is
→
Mast cells are found in
→
Find out the correct order of number of bones in the parts of skull such as cranial bone, facial bone, hyoid bone and middle ear bone respectively.
→
Identify the reaction for which the $C_4$ plants require some extra $ATP$ molecules in comparison to $C_3$ plants
→
Match column-$I$ with column-$II$ and select the correct option.
Column-$I$ Column-$II$
$A$. $RER$ $I$. Intracellular and extracellular digestion
$B$. Cell wall $II$. Provide structural support to the cell
$C$. Flagella $III$. Protein synthesis and secretion
$D$. Lysosomes $IV$ Responsible for cell movement
→
How many Calvin cycles are required to produce $5$ molecules of glucose?
→
Transport of O2​ is done by:
→