(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
which of the following statements is true about arteries ?
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
(a) Arteries possess thick elastic wall without valves inside, blood flows under high pressure and carry blood away from the heart to different parts of the body.
See lessFour statements are given below about human heart. Which one of them is are correct ?
(i) Right auricle receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of body.
(i) Right auricle receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of body.
See lessThe effect of root pressure in transport of water is more effective
(c) during night
(c) during night
See lessWhich one of the following statement is not correct about lymph ?
(d) It is similar to blood plasma, red coloured and has more protein
(d) It is similar to blood plasma, red coloured and has more protein
See lessWhich of the following helps in clotting of blood ?
(c) Platelets
(c) Platelets
See lessBlood pressure is measured by an instrument called
(d) Sphygmomanometer
(d) Sphygmomanometer
See lessSometimes after vigorous exercise you feel cramps in muscles due to
(d) conversion of pyruvate to lactic acid
(d) conversion of pyruvate to lactic acid
See lessIn which form most of the plants absorb nitrogen from soil ?
(b) Nitrates and Nitrites and Urea
(b) Nitrates and Nitrites and Urea
See lessWhich one of the following is the first enzyme to mix with food in digestive tract ?
(d) Amylase
(d) Amylase
See lessTo prevent the entry of food into the trachea the opening is guarded by
(c) epiglottis
(c) epiglottis
See less