Tag: basics of blood and heart

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Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

The process of formation of various types of blood cells is known as?

  1. Hemoglutination

  2. Hemolysis

  3. Haemophilia

  4. Haemopoiesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The process of making blood cells is called haemopoiesis. Blood cells are made in the bone marrow. That's a spongy tissue located inside some bones. It contains young parent cells called stem cells. These blood-forming stem cells can grow into all 3 types of blood cells – red cells, white cells, and platelets. These blood-forming stem cells make copies of themselves, and they also produce mature blood cells. When blood cells are fully mature and functional, they leave the bone marrow and enter the blood. Healthy people have enough stem cells to keep making all the blood cells they need every day.

Therefore, the correct option is D.

Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Blood platelets

  1. Help in the production of red blood cells in the bone marrow.

  2. Clot the blood.

  3. Are produced in liver.

  4. Fight disease-causing germs.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Blood platelets or thrombocyte is another word for platelet, the blood cell that is responsible for normal blood clotting. The root "thrombo" means clot, and you will see it used with diseases and conditions that affect the platelets and blood clotting.

So, the correct option is 'Clot the blood'.

Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Red blood cells are ........... white blood cells in size.

  1. Equal to

  2. Smaller than

  3. Larger than

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
White Blood Cell (Leukocyte) are made in the bone marrow and protect the body against infection. White blood cells are bigger than red blood cells and normally are fewer in number. When a person has a bacterial infection, the number of white cells can increase dramatically.
So, the correct option is 'Smaller than'.
Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Red blood cells are also known as

  1. Erythrocytes

  2. Leukocytes

  3. Neurocytes

  4. Oxycytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Red blood cells-- also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel", with -cyte translated as "cell" in modern usage), are the most common type of blood cell and the vertebrate's principal means of delivering.

So, the correct option is 'Erythrocytes'.

Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Mach List -I and List -II and select the correct option .

List - I List - II
A. Biological pigments 1 Sodium  chloride
B. Chemical messengers 2 Steroids
C. Important constituentof blood 3. Prostaglandins
D. Four carbon rings 4. Terpenes

  1. A - 2, B - 4, C -3,D -1

  2. A - 2, B -1, C - 4, D - 3

  3. A-3,B-4,C-2,D-1

  4. A-4,B-3,C-1,D-2

  5. A-3,B-4,C-1,D-2
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Biological pigments include various compounds; chemical messengers include prostaglandins; blood constituents include sodium chloride; four carbon rings are characteristic of steroids (like cholesterol). Matching A-3, B-4, C-1, D-2 is the correct association.

Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Which of following forms net-like structure during bleeding?

  1. Platelets

  2. RBC

  3. WBC

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Platelets are cell fragments produced from megakaryocytes (special cells in the bone marrow). They are also called as thrombocytes. An injury or a trauma stimulates the platelets in the blood to release certain factors which activate the mechanism of coagulation or blood clotting. They also change their shape from round to spiny and stick to the broken vessel wall and each other and forms net-like structure during bleeding. Hence platelets forms net-like structure during bleeding.

So, the correct answer is 'Platelets'.

Multiple choice evs transportation in living organisms blood in humans circulatory system - blood basics of blood and heart

Statements:
A. Plasma constitutes 45% of the human blood
B. Albumin is a plasma protein which helps in osmotic balance
C. Factors responsible for the blood clotting process are
present in the blood
D. Plasma without clotting factors is called serum
E. Minerals are not generally found in blood Of the above statements.

  1. Only E is wrong and all other A to D are correct

  2. A and B are correct and C, D and E are wrong

  3. B and D are correct and A, C and E are wrong

  4. A and E are correct and B, C and D are wrong

  5. B,C and D are correct and A and E are wrong
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Statement A is incorrect because plasma is about 55% of blood. Statement E is incorrect because minerals (electrolytes) are essential components of blood plasma. Statements B, C, and D are standard physiological facts.