Life Process Question and Answer MCQ. We covered all the Life Process Question and Answer MCQ below in this post for free.
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01 Gaseous exchange takes place within lungs from alveoli to blood capillaries takes by process called …..
- osmosis
- diffusion
- fitration
- none of the above
Option 2 – diffusion
02 In exhaled air percentage of CO2 is ……
- 0.03%
- 0.04%
- 1%
- 4%
Option 4 – 4 percent
03 Power house of cell is ……..
- chloroplast
- mitochondria
- nucleus
- ribosome
Option 2 – mitochondria
04 Percentage of Oxygen in exhaled air is …….
- 16%
- 20%
- 21%
- 79%
Option 1 – 16 percent
05 Ion present in chloroplast is …….
- magnesium
- iron
- manganese
- chloride
Option 1 – magnesium
06 On doing strenuous exercise, blood sample shows more percent of …….. in blood
Option 2 – lactic acid
07 Reason for muscle fatigue is presence of ……… in blood
Option 4 – lactic acid
08 End products of fermentation
Option 1 – ethyl alcohol, CO2
09 The term cardiac refers to which organ in the body?
- heart
- vein
- lymph
- capillary
Option 1 – heart
10 On which side of the human heart is low in oxygen?
- left ventricle
- right ventricle
- left atrium
- right atrium
Option 4 – right atrium
11 Which structures of the heart control the flow of blood?
- arteries
- veins
- valves
- capillaries
Option 3 – valves
12 Which of the following opinion are correct?
- ravi said, xylem and phloem cells are arranged one upon the other to form a tube like structure
- john said, xylem and phloem are not separate tube like structures
- salma said, xylem and phloem cells connect together to form a tube like structure
- hari said, because of its shape they said to be tube like structures
Option 3 – salma said, xylem and phloem cells connect together to form a tube like structure
13 An aphid pierces its proboscis into the …….. to get plant juices
- xylem
- phloem
- cambium
- vascular bundle
Option 2 – phloem
14 Lymph is a part of
- digestive system
- excretory system
- nervous system
- transport system
Option 4 – transport system
15 Incompletely divided ventricle occurs in
- fish
- frog
- reptile
- bird
Option 3 – reptile
16 Example for open type of circulatory system
- frog
- earth worm
- man
- butterfly
Option 4 – butterfly
17 Double circulation is precent in
- earth worm
- cockroach
- fish
- monkey
Option 4 – monkey
18 Valve present between right atrium and right ventricle
- tricupid value
- bicypsid value
- pulmonary value
- aortic valve
Option 1 – tricupid value
19 Pericardium is associated with
- lung
- kidney
- brain
- heart
Option 4 – heart
20 Four chambered heart occurs in
- fishes, birds
- amphibian, reptiles
- reptiles, mammals
- birds, mammals
Option 4 – birds, mammals
21 Incomplete divided ventricle is occurs in
- fish
- frog
- reptiles
- birds
Option 3 – reptiles
22 Blood vessel that takes oxygenated blood to heart
- pulmonary heart
- post caval vein
- coronary vein
- pulmonary vein
Option 4 – pulmonary vein
23 Vena cava in man open into
- right auricle
- left auricle
- right ventricle
- left ventricle
Option 1 – right auricle
24 Heart attack is caused by the blocking of
- pulmonary artery
- coronary artery
- conorary vein
- pulmonary vein
Option 2 – coronary artery
25 Pulmonary artery starts from
- right ventricle
- left ventricle
- right auricle
- left auricle
Option 1 – right ventricle
26 Deoxygenated blood from heart is taken to
- kidney
- lung
- neck
- stomach
Option 2 – lung
27 Right auricle receives
- oxygenated blood
- lymph
- mixed blood
- deoxygenated blood
Option 4 – deoxygenated blood
28 Blood pressure of a person is measured by
- galvanometer
- sphygnomanometer
- barometer
- thermometer
Option 2 – sphygnomanometer
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