Where do arteries carry blood?
A. Heart
B. Lungs
C. Tissues
D. Brain
Answer: Option A
Explanation:
Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues.
Which parts of the heart receive blood from the lungs?
A. Right ventricle
B. Left atrium
C. Left ventricle
D. Right atrium
Answer: Option B
Explanation:
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
The universal donor belongs to blood group
A. A
B. B
C. AB
D. O
Answer: Option D
Person having blood group ‘B’ can donate the blood to person having blood group
A. A and O
B. B and O
C. A and AB
D. B and AB
Answer: Option D
Scientist who discovered blood groups was
A. Krebs
B. Pavlov
C. Karl Landsteiner
D. Darwin
Answer: Option C
Explanation:
Karl Landsteiner, was an Austrian biologist, physician, and immunologist. He distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups.
Blood Circulation-MCQ
Red colour of blood is due to presence of
A. Plasma
B. Hemoglobin
C. RBC
D. WBC
Answer: Option B
What carries blood away from the heart?
A. Arteries
B. Veins
C. Both A & B
D. None
Answer: Option A
Explanation:
Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues.
Which of the following blood group is called universal donor ?
A. A+
B. B+
C. O-
D. AB+
Answer: Option C
With which of the following body organ is ‘pace-maker’ associated?
A. Liver
B. Brain
C. Heart
D. Lungs
Answer: Option C
Explanation:
Pacemaker is associated with heart. Pacemaker are implanted on the body of the patient to give artificial heart beat when the normal body heart beat fails to function in the body of the patient. They are implanted temporarily to treat a slow heartbeat after a heart attack, surgery or overdose of medication.
Average life span of human R.B.C is
A. 100 days
B. 90 days
C. 120 days
D. None of these
Answer: Option C
Which of the following blood cells carry oxygen?
A. W.B.Cs
B. Platelets
C. R.B.Cs
D. All of the above
Answer: Option C
Explanation:
The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.
In human body lymphocytes are formed in
A. Liver
B. Bone marrow
C. Pancreas
D. Spleen
Answer: Option B
Blood Circulation-MCQ
Which statement about capillaries is correct?
A. Their walls are covered with cilia
B. They warm and humidify inhaled air
C. Their walls are only one cell thick
D. They move mucus through the lungs
Answer: Option C
Explanation:
Capillaries are tiny blood vessels connecting arteries to veins. These blood vessels carry oxygen and nutrients to individual cells. Capillaries are the smallest blood vessels in the body, and have walls only one or two cells thick.
The grouping of blood is based on substances called
A. Antibodies
B. Antigens
C. Antitoxin
D. Enzymes
Answer: Option B
Explanation:
The red blood corpuscles or erythrocytes usually carry antigens and there are two types of antigens. The A group persons have antigen A in their red corpuscles and the B group have antigen B in their red corpuscles. The AB group person have both antigen A and antigen B in their erythrocytes. The ‘O’ group persons have no antigens in their red corpuscles.
Which blood group is universal acceptor?
A. O+
B. O-
C. AB-
D. AB+
Answer: Option D
The normal blood pressure in human beings is
A. 80/120
B. 120/80
C. 80/110
D. 110/90
Answer: Option B
Blood group which have no antigen
A. A
B. B
C. AB
D. O
Answer: Option D
Explanation:
Blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.
Red blood corpuscles is also known as
A. Erythrocytes
B. Leucocytes
C. Thrombocytes
D. Esinophils
Answer: Option A
What is the average Life span of RBC?
A. 120 days
B. 99 days
C. 101 days
D. 111 days
Answer: Option A
Main function of white blood corpuscles is
A. Transport of CO2
B. Transport of oxygen
C. To produce immune system of body
D. None of the above
Answer: Option C
Purification of blood takes place in
A. Lungs
B. Heart
C. Kidney
D. Liver
Answer: Option C
Fully mature human RBCs has
A. A nucleus
B. No nucleus
C. Nucleus may or may not be present
D. None of the above
Answer: Option B
Which of the following blood group is universal donor?
A. B
B. O
C. A
D. AB
Answer: Option B
Blood Circulation-MCQ
Human heart is made up of
A. Nervous tissue
B. Cardiac muscle
C. Nonstriated muscle
D. Connective tissue
Answer: Option B
Explanation ( Rlearn Education):
An organ is a group of tissues that work together to perform a specific function. In the case of heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.
Antigens ‘A’ and ‘B’ are absent in persons belong to blood group
A. ‘O’
B. ‘A’
C. ‘B’
D. ‘AB’
Answer: Option A
Explanation (Rlearn Education):
Blood group O has no antigens, but both anti-A and anti-B antibodies in the plasma, as well as some special “anti-A,B’ antibodies. Blood group AB has both A and B antigens, but no antibodies.
The upper chambers of the heart are the
A. Ventricles
B. Atria
C. Both A & B
D. None of the above
Answer: Option B
The sound lub-dub lub-dub is produced by
A. Liver
B. Kidney
C. Heart
D. Lung
Answer: Option C
Blood group which have no antibodies
A. A
B. B
C. AB
D. O
Answer: Option C
Haemoglobin is an important component of
A. RBC
B. WBC
C. Platletes
D. Cytoplasm
Answer: Option A
Hemoglobin, the oxygen carrying substance in red blood cells, is a
A. Nuclei acid
B. Carbohydrates
C. Fats
D. Proteins
Answer: Option D
General Science Practice Set-1
What carries blood back to the heart?
A. Veins
B. Arteries
C. Both A & B
D. None
Answer: Option A
Explanation (Rlearn.in)
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart.
The smallest blood vessels which are one-cell thick, are called ________
A. Vena cava
B. Arteries
C. Veins
D. Capillaries
Answer: Option D
Name the blood cells in which nucleus is absent.
A. Lymphocytes
B. Blood Platelets
C. Monocytes
D. Eosinophils
Answer: Option B
Lymph carries digested and absorbed fat from ________ .
A. Lungs
B. Intestine
C. Stomach
D. Kidney
Answer: Option B
Blood Circulation-MCQ
Instrument used to measure blood pressure is
A. E.C.G
B. Stetheoscope
C. sphygmomanometer
D. Arm band
Answer: Option C
Explanation:
You can measure your blood pressure on your own using a digital blood pressure monitor for automated readings or an instrument called a sphygmomanometer for manual readings.
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is
A. B or A
B. AB or A
C. A or O
D. AB or B
Answer: Option D
Which statement regarding the mammalian heart is correct?
A. Blood is pumped from the heart via the atria
B. Oxygen-loaded blood moves only through the right side of the heart
C. When the right atrium contracts, it forces blood into the left atrium
D. In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs
Answer: Option D
Blood pressure is the pressure exerted on the wall of
A. Heart
B. Vein
C. Artery
D. Cell
Answer: Option C
Number of chamber found in human heart is
A. 2
B. 3
C. 4
D. 5
Answer: Option C
The largest artery in human body is
A. Aorta
B. Capillary
C. Vena cava
D. Pulmonary vein
Answer: Option A
Volume of blood found in a healthy person is
A. 3-4 litre
B. 4-5 litre
C. 5-6 litre
D. 6-7 litre
Answer: Option C