• 1. 
    How many chambers does a frog’s heart have?

  • 2
  • 3
  • 4
  • 2. 
    Chloroplasts are present in the ___________ of the leaf.

  • palisade parenchyma
  • aerenchyma
  • sclrenchyma
  • collenchyma
  • 3. 
    Pyruvic acid is converted to lactic acid in the --------of muscle cells

  • Cytoplasm
  • Mitochondria
  • Golgi body
  • None of these
  • 4. 
    Excess glucose is stored in the form of glycogen in the _____________

  • pancreas
  • gall bladder
  • blood
  • liver
  • 5. 
    The digestive juice produced by stomach contains

  • Hydrochloric acid
  • Pepsin
  • Mucus
  • All of above
  • 6. 
    What are pores in leaves called

  • Stomata
  • Guard cell
  • Subsidiary cells
  • All
  • 7. 
    In unicellular organisms like amoeba gaseous exchange takes place through the process of ____________.

  • osmosis
  • transportation
  • diffusion
  • elimination
  • 8. 
    When Air Is Blown From Mouth Into A Test-Tube Containing Lime Water, The Lime Water Turned Milky Due To The Presence Of

  • Carbon dioxide
  • Oxygen
  • Nitrogen
  • Water vapour
  • 9. 
    Digestion of food in amoeba occurs in

  • Nucleus
  • Cytoplasm
  • Food vacuole
  • None
  • 10. 
    Chlorophyll has a porphyrin ring with _ _ _ _ _ at the centre.

  • Iron (Fe)
  • Chromium (Cr)
  • Magnesium (Mg)
  • Carbon (C)
  • 11. 
    Which organism show autotrophic nutrition

  • Bacteria
  • Green plants
  • Blue green bacteria
  • All of them
  • 12. 
    The substance in plants and animals that act as an energy currency.

  • DNA
  • RNA
  • ADP
  • ATP
  • 13. 
    What pigment helps to absorb sunlight

  • Melanin
  • Chloroplast
  • Chlorophyll
  • All
  • 14. 
    The only artery which carries deoxygenated blood is:

  • Pulmonary artery
  • Renal artery
  • Hepatic artery
  • Coronary artery
  • 15. 
    The only reptile having 4- chambered heart is

  • Snake
  • Crocodile
  • Lizard
  • Turtle
  • 16. 
    Pericardium is the protective membrane outside the _________

  • Heart
  • Kidney
  • Lungs
  • Stomach
  • 17. 
    Which Part Of Alimentary Canal Receives Bile From The Liver?

  • Stomach
  • Oesophagus
  • Large intestine
  • Small intestine
  • 18. 
    Raw materials used in the autotrophic mode of nutrition is:

  • Glucose, Starch, Fructose
  • Protein, Fats
  • Carbon dioxide, water
  • Hydrogen, Oxygen
  • 19. 
    A blood vessel which carries blood back to heart is

  • Artery
  • Vein
  • Capillary
  • All of above
  • 20. 
    The mode of nutrition in Cuscuta

  • Saprophytic
  • Parasitic
  • Holozoic
  • Autotrohpic
  • 21. 
    The continuous contractions and relaxations of the digestive organs is called

  • peristalsis
  • photosynthesis
  • expansion
  • constriction
  • 22. 
    How do stomata close and open

  • Guard cells
  • Subsidiary cells
  • All
  • None
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