Causes of color/Bitterness in Fruit and Vegetable

Pungency in cabbage leaves due to:

Pungency in pepper is due to:

Sour taste of gram leaves is due to:

Green colour in potato tuber due to:

Pungency in garlic is due to:

Pungency in mustard is due to :

Pungency in raphanus is due to :

Pungency in onion  is due to:

Red color in onion is due to:

Yellow color of onion  is due to :

Bitterness in cucumber is due to:

Bitterness in bitter gourd is due to:

Red colour in carrot is due to:

Orange color in carrot is due to:

Yellow colour in turmeric  is due to:

Pungency in chilli  is due to:

Red colour in chilli  is due to:

Redness of Apple is due to:

Red color of Tomato is due to:

Yellow color in papaya is due  to: