Why carotene pigments are called shield pigments?

What are shield pigments?

Which one of the photosynthetic pigments is called shield pigment:

………….pigments are also called as shield pigments.

Apart from chlorophyll a, other pigment are called accessory pigments . Why ?

Carotenoids are shield pigments - Comment.

What are generally called as accessory pigments?

Assertion : The chromoplasts contain fat soluble carotenoid pigments like carotene and xanthophylls etc. Reason : These pigments give yellow, orange or red colour to some parts of the plant.

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. (a) Vitamin A derivatives are formed from carotene. (b)The photo pigments are embedded in the membrane discs of the inner segments. (c ) Retinal is a derivative of vitamin A (d) Retinal is light absorbing part of all the visual photopigments.