1. A
   Potassium dichromate
2. B
   Potassium hydroxide
3. C
   Potassium bicarbonate
4. D
   Potassium permanganate

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1. A
   Glycogen
2. B
   Starch
3. C
   Protein
4. D
   Fatty acid

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1. A
   Hippocampus, Exocoetus, Anabas
2. B
   Whale, Dolphin, Turtle
3. C
   Labeo, Chameleon, Salamander
4. D
   Hyla, Rana, Draco

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1. A
   Water level will not rise in bent tube
2. B
   Water level will decrease in bent tube
3. C
   CO₂ will not be absorbed
4. D
   Water level will not rise in bent tube and CO₂ will not be absorbed

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1. A
   All of these
2. B
   freshly plucked leaf
3. C
   leaf placed in sunlight for 48 hours
4. D
   dried and preserved leaf

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1. A
   stomach
2. B
   small intestine
3. C
   large intestine
4. D
   liver

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1. A
   Bowman capsule, Glomerulus
2. B
   Bowman capsule, Ampulla
3. C
   Capillaries, Bowman capsule
4. D
   Ampulla, Glomerulus

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1. A
   Conversion of pyruvate to ethanol
2. B
   Non conversion of glucose to pyruvate
3. C
   Conversion of pyruvate to lactic acid
4. D
   Conversion of pyruvate to glucose

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1. A
   Light is necessary for photosynthesis
2. B
   Photosynthesis does not occur
3. C
   Carbon dioxide is not needed for photosynthesis
4. D
   Light is not needed for photosynthesis

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1. A
   Into the cell
2. B
   Out of the cell
3. C
   movement of water
4. D
   No movement of water

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1. A
   Ureter
2. B
   Urethra
3. C
   Neurons
4. D
   nephrons

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

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1. A
   The entire leaf turned blue-black.
2. B
   The uncovered part of the leaf became blue-black.
3. C
   The colour of the iodine solution remain unchanged.
4. D
   The covered part of the leaf became blue-black.

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1. A
   Fatty acid and amino acids
2. B
   Fatty acids and glycerol
3. C
   Glucose and amino acids
4. D
   Glucose and glycerol

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1. A
   (i) Sugars, (ii) amino acids, (iii) fatty acids and glycerol
2. B
   (i) Amino acids, (ii) glucose and (iii) fatty acids
3. C
   (i) Amino acids, (ii) glucose, (iii) fatty acids and glycerol
4. D
   (i) Glucose, (ii) fatty acids and glycerol, (iii) amino acids

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

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1. A
   sclerenchyma
2. B
   parenchyma
3. C
   collenchyma
4. D
   aerenchyma

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1. A
   Striated muscle and Smooth muscle
2. B
   Skeletal muscle
3. C
   Cardiac Muscle
4. D
   Smooth muscle

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1. A
   Blood
2. B
   Lymph
3. C
   Adipose connective tissue
4. D
   Areolar connective tissue

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1. A
   suberin
2. B
   lignin
3. C
   cellulose
4. D
   cutin

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1. A
   Transpiration
2. B
   Conduction of food
3. C
   Exchange of gases
4. D
   Protection

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1. A
   stratified epithelium
2. B
   simple squamous epithelium
3. C
   both simple and stratified epithelium
4. D
   glandular epithelium

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1. A
   Osteocytes
2. B
   Mast cells
3. C
   Basophils
4. D
   Chondrocytes

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1. A
   connective tissue
2. B
   epithelial tissue
3. C
   smooth muscles
4. D
   adipose tissue

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1. A
   outer side of cheek with a blade
2. B
   inner side of cheek with a toothpick
3. C
   inner side of cheek with a blade
4. D
   outer side of cheek with a toothpick

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