blood transport system - Category wise Question and Answer Practice Test with Solutions

Question : 1 [IAS (Pre) 2001]

An antigen is a substance which

a) Is used to treat poisoning

b) Lowers body temperature

c) Destroys harmful bacteria

d) Stimulates formation of antibody

Question : 2 [IAS (Pre) 2017]

Biological Oxygen Demand (BOD) is a standard criterion for

a) Computing oxygen levels in forest ecosystems

b) Pollution assay in aquatic ecosystems

c) Measuing oxygen levels in blood

d) Assessing oxygen levels in high altitude regions

Question : 3 [PCS (Pre) 2003]

What is the basic feature of antigen?

a) It induces formation of antibodies

b) It destroys insulin

c) It induces formation of haemoglobin

d) It acts against the antibodies

Question : 4 [MPPCS (Pre) 2010]

What is the pH level of blood of a normal person?

a) 6.45-6.55

b) 7.35-7.45

c) 4.5-4.6

d) 8.25-8.35

Question : 5 [PSC (Pre) 2017]

When there is a decrease in the concentration of oxygen in the blood, the rate of breathing

a) Increases

b) Does not change

c) Decreases

d) First decreases, then increases