Read the passage given below and answer the following questions from (i) to (v):
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body. Blood is essential. In addition to carrying fresh oxygen from the lungs and nutrients to the body's tissues, it also takes the body's waste products, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all parts of the body.
When we are injured and start bleeding, the loss of blood from the system has to be minimised. In addition, leakage would lead to a loss of pressure which would reduce the efficiency of the pumping system.
(i) Which of the following cells present in blood help in clotting of blood at the point of injury?
R.B.C
W.B.C
Platelets
Mucus cells
(3)
Read the passage given below and answer the following questions from (i) to (v):
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body. Blood is essential. In addition to carrying fresh oxygen from the lungs and nutrients to the body's tissues, it also takes the body's waste products, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all parts of the body.
When we are injured and start bleeding, the loss of blood from the system has to be minimised. In addition, leakage would lead to a loss of pressure which would reduce the efficiency of the pumping system.
(ii) What is the correct representation of normal blood pressure of a human being?
180/20 mm of Hg
120/80 mm of Hg
80/120 mm of Hg
20/180 mm of Hg
(2)
Read the passage given below and answer the following questions from (i) to (v):
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body. Blood is essential. In addition to carrying fresh oxygen from the lungs and nutrients to the body's tissues, it also takes the body's waste products, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all parts of the body.
When we are injured and start bleeding, the loss of blood from the system has to be minimised. In addition, leakage would lead to a loss of pressure which would reduce the efficiency of the pumping system.
(iii) Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
Mixing of blood would lead to clotting.
For efficient supply of oxygen and to maintain body temperature.
Birds need more blood for flying.
None of these
(2)
Read the passage given below and answer the following questions from (i) to (v):
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic, muscular tubes that carry blood to every part of the body. Blood is essential. In addition to carrying fresh oxygen from the lungs and nutrients to the body's tissues, it also takes the body's waste products, including carbon dioxide, away from the tissues. This is necessary to sustain life and promote the health of all parts of the body.
When we are injured and start bleeding, the loss of blood from the system has to be minimised. In addition, leakage would lead to a loss of pressure which would reduce the efficiency of the pumping system.
The given graph represents the blood pressure of 18 years old man taken during sitting, standing and jumping position.
(iv) Choose the correct option with respect to blood circulatory system in humans.
A - Veins, B - Pulmonary artery, C - Pulmonary vein
A - Vena cava, B - Pulmonary vein, C - Pulmonary artery
A - Vena cava, B - Pulmonary artery, C - Pulmonary vein
A - Veins, B - Pulmonary vein, C - Pulmonary artery
(3)
Read the passage given below carefully and answer the following questions from (i) to (v):
Mr. Prabhakar went on a hiking with his family. He is a patient of renal failure. In the middle of the trip, he fell ill. He had leg cramps and experienced acidity with high blood pressure. He was immediately taken to a nearby hospital. Doctor prescribed him antacids and gave him injection for high Blood Pressure (BP). He advised Mr. Prabhakar to rest a while and eat healthy.
(i) Choose the correct option.
Cramps occurred due to formation of acetic acid in leg muscles.
Cramps are formed in case of absence of oxygen.
Cramps occurred due to formation of lactic acid in leg muscles.
Cramps occurred due to formation of lactic acid in leg muscles.
(3)
Read the passage given below carefully and answer the following questions from (i) to (v):
Mr. Prabhakar went on a hiking with his family. He is a patient of renal failure. In the middle of the trip, he fell ill. He had leg cramps and experienced acidity with high blood pressure. He was immediately taken to a nearby hospital. Doctor prescribed him antacids and gave him injection for high Blood Pressure (BP). He advised Mr. Prabhakar to rest a while and eat healthy.
(ii) Study the following diagram:
What does it represent?
Haemodialysis
Blood transfusion
Bypass surgery
Renal dialysis
(1)
Read the passage given below carefully and answer the following questions from (i) to (v):
Mr. Prabhakar went on a hiking with his family. He is a patient of renal failure. In the middle of the trip, he fell ill. He had leg cramps and experienced acidity with high blood pressure. He was immediately taken to a nearby hospital. Doctor prescribed him antacids and gave him injection for high Blood Pressure (BP). He advised Mr. Prabhakar to rest a while and eat healthy.
(iii) What kind of injection were given to Mr. Prabhakar for high Blood Pressure (BP) condition?
Insulin
Glucose
Saline
Hydralazine
(4)
Read the passage given below carefully and answer the following questions from (i) to (v):
Mr. Prabhakar went on a hiking with his family. He is a patient of renal failure. In the middle of the trip, he fell ill. He had leg cramps and experienced acidity with high blood pressure. He was immediately taken to a nearby hospital. Doctor prescribed him antacids and gave him injection for high Blood Pressure (BP). He advised Mr. Prabhakar to rest a while and eat healthy.
(iv) In a healthy adult, the initial filtrate in the kidneys is about:
1–2 L daily
80 L daily
180 L daily
120 L daily
(3)
Read the passage given below carefully and answer the following questions from (i) to (v):
Mr. Prabhakar went on a hiking with his family. He is a patient of renal failure. In the middle of the trip, he fell ill. He had leg cramps and experienced acidity with high blood pressure. He was immediately taken to a nearby hospital. Doctor prescribed him antacids and gave him injection for high Blood Pressure (BP). He advised Mr. Prabhakar to rest a while and eat healthy.
(v) Which of the following is not the function of hydrochloric acid in the body?
Creating acidic medium in stomach.
Digestion of proteins.
Facilitate the function of pepsin, for digestion of proteins.
Killing of microbes present.
(2)
