Class X

The chlorophyll in photosynthesis is used for
  1. Absorbing light
  2. Breaking down water molecule
  3. No function
  4. Reduction of CO2
Select the correct system which can relate the function of kidney
  1. Nutrition
  2. Respiration
  3. Excretion
  4. Transportation
Opening and closing of pores is a function performed by
  1. Stomata
  2. Chlorophyll
  3. Chloroplast
  4. Guard cells
Carbohydrates in the plants are stored in the form of
  1. Glycogen
  2. Starch
  3. Glucose
  4. Maltose
The which one of the following is responsible to carry the oxygenated blood from lungs to left auricle
  1. Vena cava
  2. Pulmonary vein
  3. Pulmonary artery
  4. Aorta
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