CBSE 11th Standard Biology Subject Body Fluids and Circulation HOT Questions 1 Marks Questions 2021
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CBSE 11th Standard Biology Subject Body Fluids and Circulation HOT Questions 1 Marks Questions 2021
11th Standard CBSE
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Reg.No. :
Biology
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It is seen that RBC count is more in the persons living at high altitudes. Indicate the reason behind this.
(a)It is due to the low concentration of O2 in the air, which enables less O2 binding capacity of the haemoglobin, this increases RBC count in persons living at high altitude.
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Why is blood group identification not needed or serum identification?
(a)Because serum does not have the coagulation/clotting factor.
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What is the effect of dengue fever on the platelets of blood in humans?
(a)One of the major effect of dengue fever is the low platelet counts. It leads to life threatening condition if left untreated.
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Heart failure is called congestive heart failure. Why?
(a)The congestion of lungs is a symptom of heart failure. Thus, it is also called congestive heart failure.
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Indicate the blood vessel that transports hormones from the hypothalamus to the anterior pituitary.
(a)Hypophyseal portal vein.
1 Marks
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CBSE 11th Standard Biology Subject Body Fluids and Circulation HOT Questions 1 Marks Questions 2021 Answer Keys
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It is due to the low concentration of O2 in the air, which enables less O2 binding capacity of the haemoglobin, this increases RBC count in persons living at high altitude.
It is due to the low concentration of O2 in the air, which enables less O2 binding capacity of the haemoglobin, this increases RBC count in persons living at high altitude.
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Blood is a mobile connective tissue derived from mesoderm. It consists of fibre-fre fluid matrix, plasma and other cells. It is called so, as it regularly circulates in the body and takes part in transport of various materials like hormones, gass, etc.
Because serum does not have the coagulation/clotting factor.Blood is a mobile connective tissue derived from mesoderm. It consists of fibre-fre fluid matrix, plasma and other cells. It is called so, as it regularly circulates in the body and takes part in transport of various materials like hormones, gass, etc.
Because serum does not have the coagulation/clotting factor. -
One of the major effect of dengue fever is the low platelet counts. It leads to life threatening condition if left untreated.
One of the major effect of dengue fever is the low platelet counts. It leads to life threatening condition if left untreated.
-
The congestion of lungs is a symptom of heart failure. Thus, it is also called congestive heart failure.
The congestion of lungs is a symptom of heart failure. Thus, it is also called congestive heart failure.
-
The hypophyseal portal system is a system of blood vessels in the microcirculation at the base of the brain, connecting the hypothalamus with the anterior pituitary. Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and anterior pituitary gland.
The hypophyseal portal system is a system of blood vessels in the microcirculation at the base of the brain, connecting the hypothalamus with the anterior pituitary. Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and anterior pituitary gland.
1 Marks
