NURSING EXAM QUESTIONS
NUTRITION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Even though some flowering plants contain accessory pigments which give them colours, they still contain the pigment ____
|
|
Melanin
|
|
|
Chlorophyll
|
|
|
Xanthophyll
|
|
|
Carotene
|
Explanation:
Detailed explanation-1: -The additional pigments are able to absorb other light wavelengths that chlorophyll cannot.
Detailed explanation-2: -Carotenoids are also accessory pigments, which are red, orange, and yellow in color. They are abundantly found in plants and are present in chloroplasts. There are around 600 types of carotenoids. These are made up of two, six carbon rings, that are connected by carbon atoms.
Detailed explanation-3: -Chlorophyll a, chlorophyll b, carotene and xanthophyll are different pigments found in a chloroplast. Among these, only chlorophyll a can participate directly in photosynthesis. All other pigments absorb light and transfer it to chlorophyll a. Hence, they are called accessory pigments.
There is 1 question to complete.