NCERT Biology” Circulatory System Important MCQs’ Question and answers
Question”1 In humans there is a ———— to transport substances-
- Digestive system
- respiratory system
- circulatory system
- excretory system
Question”2 which of the following is not a function of circulatory system?
- transportation of nutrients
- transportation of respiratory gases
- transportation of nitrogenous waste
- break down of complex foods
Question”3 which type of circulation does not found in humans?
- closed circulation
- Lymph circulation
- open circulation
- blood circulation
Question”4 who discovered blood circulatory system in humans?
- Robert hook
- willium harvey
- Landsteiner
Question”5 what is the main circulatory substance in blood circulatory system ?
- Lymph
- water
- blood
- heart
Question”6 which of the following is/are part(s) of the circulatory system in humans ?
- blood
- blood vessels
- heart
- all of the above
Question”7 which of the following is NOT a type of blood vessel?
- blood plasma
- artery
- vein
- capillary
Question”8 which of the following is in descending order by thickness?
- vein, artery, capillary
- artery, capillary, vein
- vein, capillary, artery
- artery, vein , capillary
Question”9 which is helpful in exchanging nutrients, waste materials and gases between blood and cell?
- artery
- vein
- capillary
- none of these
Question”10 which of the following is NOT correct about artery?
- This takes blood away from heart
- this takes blood towards heart
- blood flows inside it with high pressure and speed
- it has no any valve
Question”11 which of the following is Not correct about vein?
- this takes blood towards ds heart
- blood flows inside it with low pressure and speed
- it has valve
- it is deeply situated in body
Question”12 which of the following connects artery and vein?
- Pulmonary vein
- Pulmonary artery
- Capillary
- none of these
Question”13 when amount of oxygen in blood is high then it is called
- Neutral blood
- pure blood
- impure blood
- buffer blood
Question”14 what does the colour of vein looks like in general?
- Red
- blue
- black
- yellow
Question”15 In ———- blood flows with high pressure-
- Capillary
- artery
- vein
- none of these
Question”16 ———- Shrivels on being empty –
- Only artery
- only vein
- artery and vein both
- capillary
Question”17 The amount of ——— in impure blood is relatively high?
- Nitrogen
- Oxygen
- carbon dioxide
- Carbon monoxide
Question”18 what is the main function of the valve in the vein?
- It speeds up the blood
- It purifies blood
- it filters the waste substance from blood
- It prevents the back flow of blood in opposite direction
Question”19 which of the following is incorrect related to blood?
- It is a liquid connective tissue
- it’s pH value is 7.4
- It Originates from mesodermal layer
- It is acidic in nature
Question”20 study of blood is called as-
- Phycology
- Cycology
- Haematology
- histology
Question”21 which of the following is /are components (s) of blood?
- Plasma
- red blood Corpuscle
- white blood Corpuscle
- Platelet
- Only A and B
- A,B And C
- A,C and D
- A,B,C and D
Question”22 what is the approximate amount of plasma in blood?
- 25%
- 35%
- 45%
- 55%
Question”23 what is the approximate percentage of water in blood plasma?
- 45-45%
- 50-55%
- 60-65%
- 90-92%
Question”24 what is the colour of blood plasma?
- Light blue colour
- light yellow colour
- light red colour
- light green colour
Question”25 Nature of plasma is ———
- acidic
- basic
- neutral
- Can’t be said
Question”26 blood plasma contains”
- water:90-92%
- Protein: 6-8%
- Inorganic ions: 1%
- all of the above
Question”27 Protein (s) mainly Found in plasma is/are –
- albumin
- Globulin
- Fibrinogen
- all of these
Question”28 ——— Protein is required in blood clotting or coagulation-
- albumin
- globulin
- fibrinogen
- none of these
Question”29 which of the following protein is used for used for osmotic balance?
- Prothrombin
- globulin
- albumin
- fibrinogen
Question”30 which is the protein present in plasma that prevents blood clot inside the body?
- Prothrombin
- Fibrinogen
- Heparin
- Globulin
Question”31 which is incorrect with reference to cholesterol” present in plasma?
- It produces in liver
- It provides strengthen to plasma membrane
- it is helpful in formation of steroid hormone
- it produces in pancreases
Question”32 what is the approximate amount of RBC in Blood?
- 55%
- 44%
- 92%
- 1%
Question”33 which is incorrect related to RBC?
- Its life span is about 120 days
- it is also called leucocyte
- it is also called erythrocyte
- it Produces in bone marrow
Question”34 which is called the “Graveyard of RBCs or blood bank” of humans body?
- liver
- kindly
- spleen
- heart
Question”35 where is the production of RBCs take place in embryonic stage?
- liver
- bone marrow
- spleen
- a and c both
Question 36 At high altitude, red blood corpuscle in the humans body will –
- Increase in size
- Decrease in number
- Increase in number
- Decrease in size
Question”37 In RBC ——- will take place –
- Only aerobic respiration
- Only anaerobic respiration
- Mitochondria
- Cuticle respiration
Question”38 Production of RBC is known as-
- Erythropoiesis
- Erythropoietin
- Erythropoietic organ
- None of these
Question”39 Increase in RBCs abnormally known as –
- Polycythaemia
- erythrocytopenia
- Erythropoiesis
- Leucopoiesis
Question”40 which of the following is may be erythropoetic organ(s)?
- Kidney
- liver
- bone marrow
- Both B and C
Question”41 ——— Is swallowed RBC after 120 days
- Phagocytes
- virus
- Bacterium
- fungus
Question”42 Nucleus is found in RBC of ———?
- Human
- Camel
- Cow
- Goat
Question”43 which of the following is a leucocyte?
- RBC
- WBC
- Plated
- None of these
Question”44 which is incorrect related to WBC?
- Its life span is 120 days
- Its life span is 3-4 days
- It has no any pigment
- It has a nucleus
Question”45 How many types of WBC
- three
- Four
- Five
- six
Question”46 How many types of white blood cells are there based on granules in cytoplasm?
- Two
- three
- four
- five
Question”47 which of the following is not a type of granular WBC?
- Eosinophils
- Basophils
- Neutrophils
- Lymphocytes
Question”48 ——– also called thrombocyte
- white blood cell
- Red blood cell
- Platelet
- Heart
Question”49 which of the following helps in blood clottings?
- RBC
- WBC
- Platelet
- glucoside
Question”50 ——– Increase immunity-
- plasma
- WBC
- RBC
- Platelet
Answers
Q.No | Answer | Q.No | Answer |
1 | C | 26 | D |
2 | D | 27 | D |
3 | C | 28 | C |
4 | B | 29 | C |
5 | C | 30 | C |
6 | D | 31 | D |
7 | A | 32 | B |
8 | D | 33 | B |
9 | C | 34 | C |
10 | B | 35 | D |
11 | D | 36 | C |
12 | C | 37 | B |
13 | B | 38 | A |
14 | B | 39 | A |
15 | B | 40 | D |
16 | B | 41 | A |
17 | C | 42 | B |
18 | D | 43 | B |
19 | D | 44 | A |
20 | C | 45 | C |
21 | D | 46 | A |
22 | D | 47 | D |
23 | D | 48 | C |
24 | B | 49 | C |
25 | B | 50 | B |