HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Write the characteristics that contributes to the success of reptiles on land.

List the unique features of bird’s endoskeleton.

Which of the following substances in tobacco smoke damage the gas exchange system?

Which of the following best describes the process of gas exchange in the lungs?

A patient’s chart reveals that he has a cardiac output of 7500 mL per minute and a stroke volume of 50 mL. What is his pulse rate (in beats/min)

At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?

Distinguish between mitral valve and semi lunar valve.

Right ventricular wall is thinner than the left ventricular wall. Why?

What are the heart sounds? When and how are these sounds produced?

Select the correct biological term.

Destroyed in the liver and spleen after circulating in the blood for four months.

Select the correct biological term.

The substances which gives red cells their colour.

The hormone which helps in the reabsorption of water in kidney tubules is ______.

What vessels carry blood to the kidneys? Is this blood arterial or venous?

Which vessels drain filtered blood from the kidneys?

How are the kidneys involved in controlling blood volume? How is the volume of blood in the body related to arterial pressure?

Name the three main hormones involved in the regulation of the renal function?

What is the function of antidiuretic hormone? Where is it produced and what stimuli increases or decreases its secretion?

Explain the heart’s role in secreting a hormone that regulates renal function? What hormone is this?

The protein present in the thick filament is ______.

The protein present in the thin filament is ______.