Class X

Opening and closing of pores is a function performed by
  1. Stomata
  2. Chlorophyll
  3. Chloroplast
  4. Guard cells
Photosynthesis is a
  1. Catabolic process
  2. Parabolic process
  3. Amphibolic process
  4. Photochemical lprocess
. Which of these juices is secreted by pancreas?
  1. Trypsin
  2. Pepsin
  3. Bile juice
  4. Both I and II
Which element is used in the synthesis of proteins?
  1. Hydrogen
  2. Oxygen
  3. Nitrogen
  4. Carbon dioxide
Carbohydrates in the plants are stored in the form of
  1. Glycogen
  2. Starch
  3. Glucose
  4. Maltose
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