Biology Notes for Class 9 Chapter 9

William Harvey was born in _________

The largest and strongest chamber in heart is_______

Average life span of erythrocytes __________

Atherosclerosis is commonly referred to as a ______

During atrial systole _________

Which of the following blood vessels have valves to prevent back flow of blood?

The alternating contraction and relaxation of heart chambers _________

Which one is an agranulocyte?

William Harvey died in _______

ABO blood group system was discovered by __________

A molecule that can stimulate an immune response __________

The opening between right atrium and right ventricle is guarded by a valve called _______

The type of valve present at the base of pulmonary trunk _________

ll veins coming from stomach, spleen, Pancreas and Intestine drain into ____

Which of the following is a genetic problem due to mutations in the gene of hemoglobin?

Total number of blood group systems recognized by the International Society of Blood Transfusion ________

Celiac artery and superior mesenteric artery supply blood to _________

The temperature range at which transpiration stops ___________

Which blood cells are the most numerous in healthy human blood?

A person with AB blood group can donated to______________

Hepatic artery supplies blood to _________

Transpiration rate depends upon ___________

Arteriosclerosis is a general term describing __________

In which of the following blood vessels, the blood pressure is low?

The tissue layer that is common in all types of blood vessels _________

“Lubb-dubb” can be heard with the help of _________

When fibrinogen makes blood clot it separates from blood and the remainder is called_____

Average human heart beat per minute ___________

The opening between left atrium and left ventricle is guarded by a valve called _________

Universal blood donors are ______________

Antigens are present on the surface of ________

The most common symptom of myocardial infarction is _______

Karl Landsteiner discovered the Rh-blood group system in _________

The blood pressure in arteries is ______________

In persons with blood group O ___________

The average number of leukocytes in one cubic millimeter of blood ______

In normal adults, the mass of heart is ________

Percentage of plasma in blood is ____________

The normal pH of Human blood is ___________

World heart Day is held on ________

Which organ belongs to circulatory system?

The third part of blood circulatory system __________

Number of thrombocytes (Platelets) in one cubic millimeter of blood is _______

The blood vessels that carry blood away from heart _________

In the embryonic and faetal life, red blood cells are formed in __________

Average Number of red blood cells in a cubic millimeter of blood ______

In humid, air the rate of transpiration is _____________

The blood cells which do not contain pigments and are colourles ________

The world celebrates the International Thalassemia Day on ________

In most plants, food is transported in the form of __________

The pumping action of heart was discovered by _______

What is the actual universal donor blood group?

When does our heart takes rest?

Renal arteries supply blood to___________

Average life span of platelets __________

Heart attack may be caused by blood clot in ________

Who discovered the pathway of blood circulation?

Different veins from head, shoulders, and arms joined together and form ____

Universal blood recipients are __________

Percentage of water in plasma is ________

Blood clotting protein ___________

The outermost layer of the root____________

Which rate of transpiration doubles with every rise of temperature?

Angina pectoris means_______

In one heartbeat, diastole remains about second _________

A person having blood group O can receive blood from ___________

Gonadal arteries supply blood to _________

Which of the following prevents blood clotting?

These are smallest blood vessels __________

Each external iliac becomes femoral artery in upper thigh and gives branches to ______

If a thrombus dislodges and becomes free floating, it is called ________

As aorta passes down through thorax, it becomes ________

Which part of plant is responsible for transporting food?

Transpiration from plant surface takes place through__________

The average volume of blood in adult human’s body is __________

The roots and root hairs absorb water from soil by___________

The blood cells which help in blood clotting _________

A person having blood group B can donate blood to ____________

Right and left common iliac veins join to form__________

According to the pressure-flow mechanism, the actual force behind the movement of food in phloem_______

Roughly how much of water that enters a plant is lost via transpiration?

Intercostal arteries supply blood to _________

Uncontrolled production of defective white blood cells _________

Which cell play role in body’s defence?

Through which blood vessels the materials are exchanged between the blood and the surrounding tissues?

Which blood Group contains Antigen A?

Percentage of cells or cell like bodies in blood ___________