Download App

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

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
Blood pressure in the mammalian aorta is maximum during
  • ✓
    systole of the left ventricle
  • B
    diastole of the right atrium
  • C
    systole of the left atrium
  • D
    diastole of the right ventricle.
✓

Answer

Correct option: A.
systole of the left ventricle
a
(a) : The temporary rise in blood pressure during the contraction of the heart is called systolic pressure and the temporary fall in blood pressure during relaxation of the heart is called diastolic pressure. Blood pressure is expressed as the ratio of the systolic pressure over the diastolic pressure. For a healthy resting adult person, the average systolic/diastolic pressures are $120/80\ mmHg$. Aorta is directly supplied by left ventricle thus, the blood pressure in aorta is highest during systole of left ventricle. During it, left ventricle contracts and pushes blood into aorta.

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→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Animals like bats have/ are:
→
Which of the following is polymerized to form proteins
→
On an average, how much blood is filtered by the kidneys per minute
→
$A$ : Lysosomes help in digestion of foreign particles in the animal cells.

$R$ : They have respiratory enzymes.

→
Match the following and choose the correct option:
 
Column I
 
Column II
A.
Family
i.
tuberosum
B.
Kingdom
ii.
Polymoniales
C.
Order
iii.
Solanum
D.
Species
iv.
Plantae
E.
Genus
v.
Solanacea
Options
→
A family belongs to inferae of gamopetalae
→
Which one of the following is not a primary meristem
→
The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are categorised as
→
Which of the protein is not a part of thin myofilament?
→
Removal of proximal convoluted tubule from the nephron will result in
→