Download App

STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
In higher vertebrates, $SA-$node helps in
  • A
    Conduction of blood
  • ✓
    Initiation of heart beat
  • C
    Opening of tricuspid valve
  • D
    Opening of bicuspid valve
✓

Answer

Correct option: B.
Initiation of heart beat
b
Sinu-auricular Node ($SA-$node) or pacemaker is found in right auricle of heart. This initiates heart beat

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 - 15. Body fluids and criculations→STD 11 - 15. Body fluids and criculations — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following is a wheat fruit
→
The toad possesses
→
The ratio of the enzyme to substrate molecule can be as high as
→
Microtubules are the constituents of
→
This part is not associated with nerve ring.
→
Avena curvature test is a bioassay for examining the activity of
→
When you exhale, the diaphragm.
→
During cell division, sometimes there will be failure of separation of sister chromatids. This event is called
→
According to F. Went, auxins transmit
→
The water of guttation is forced out of the leaves by:
→