1. A
   Proteins breaking down into amino acids
2. B
   Starch breaking down into sugars
3. C
   Fats breaking down into fatty acids and glycerol
4. D
   Absorption of vitamins

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1. A
   Methyl alcohol
2. B
   Safranin
3. C
   Glycerine
4. D
   Iodine

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1. A
   Rises
2. B
   Decreases
3. C
   Rise or decreases in water level depends on the room temperature
4. D
   Remains the same

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1. A
   Pancreas and liver
2. B
   Stomach and pancreas
3. C
   Pancreas and gall bladder
4. D
   Stomach and salivary glands

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1. A
   Both anaerobic and aerobic
2. B
   Neither Anaerobic nor aerobic
3. C
   Anaerobic
4. D
   Aerobic

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1. A
   Oxygen
2. B
   Water in guard cells
3. C
   Concentration of CO₂ in stomatal
4. D
   Temperature

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1. A
   Water
2. B
   Iodine
3. C
   Glycerine
4. D
   Safranin

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1. A
   A, B and C
2. B
   A and C
3. C
   A and B
4. D
   A, B and D

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1. A
   Any flowering plant
2. B
   Newly emerged sapling
3. C
   Starched potted plant
4. D
   Destarched potted plant

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1. A
   That covered with white paper strip.
2. B
   That covered with green paper strip.
3. C
   That covered with a transparent paper strip.
4. D
   That covered with black paper strip.

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1. A
   12.5%
2. B
   5%
3. C
   2.5%
4. D
   25%

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1. A
   transport of amino acids
2. B
   transport of oxygen
3. C
   transport of food
4. D
   transport of water

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1. A
   Large intestine
2. B
   Stomach
3. C
   Stomach
4. D
   Small intestine

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1. A
   Temporal lobe - Auditory reception
2. B
   Parietal lobe - Visual reception
3. C
   Pons - Regulates respiration
4. D
   Medulla oblongata - Controls rate of heart beat

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1. A
   To increase the intake of carbon dioxide
2. B
   To destarch the enzymes in the leaves
3. C
   To activate the chloroplasts in the leaves
4. D
   To destarch the leaves

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1. A
   KOH solution
2. B
   C₆ H₁₂ OH
3. C
   Ca(OH)₂ solution
4. D
   Al(OH)₃ solution

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1. A
   Each kidney has 2 ureters
2. B
   It is cylindrical
3. C
   It has 100 nephrons
4. D
   It has bean shape

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1. A
   Kidney→ Ureter → Urethra → Urinary bladder
2. B
   Urinary bladder → Kidney → Ureter → Urethra
3. C
   kidney→ Urinary bladder → Urethra → Ureter
4. D
   Kidney→ Ureters → Urinary bladder → Urethra

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1. A
   (i), (ii) and (iv) only
2. B
   (i), (ii) and (iii) only
3. C
   (ii) and (iv) only
4. D
   (ii), (iii) and (iv) only

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1. A
   Dark
2. B
   Infrared radiation
3. C
   UV radiation
4. D
   Visible light

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1. A
   Glucose
2. B
   Acetyl COA
3. C
   Malic acid
4. D
   Pyruvic acid

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1. A
   Capillaries
2. B
   Pulmonary vein
3. C
   Pulmonary artery
4. D
   Aorta

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1. A
   Oesophagus
2. B
   Small intestine
3. C
   Stomach
4. D
   Mouth

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1. A
   soaking with filter paper
2. B
   absorbing with cotton wool
3. C
   washing with water
4. D
   washing with calcium chloride solution

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1. A
   All of these
2. B
   Photorespiration
3. C
   Aerobic respiration
4. D
   Anaerobic respiration

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