Photosynthesis ...

Consider the following statements and choose the correct answer.

a. Photochemical phase occurs inside the thylakoids, especially those of grana region.
b. Biosynthetic phase reactions occur in stroma or matrix of chloroplasts and are dependent upon light.

Photosynthetically active radiation has a wavelength of

Thylakoids possessing four types of major complexes have their membranes made up of both proteins and unsaturated lipids. Which of the following complexes is/are evenly distributed in the stroma and granal thylakoids?

a. Photosystem I
b. Photosystem II
c. Cyt b₆-f complex

In the matrix or stroma are embedded a number of flattened membranous sacs called thylakoids. At places, the thylakoids are aggregated to form stacks of discs called

Chlorophylls are the green photosynthetic pigments and out of a, b, c, d and e types of chlorophylls occurring in plants, chlorophyll a and b occur in the chloroplasts of higher plants. Which of the following is the characteristic of chlorophyll b?

Which of the following are open tetrapyrroles that do not contain magnesium and phytol?

a. Carotenoids
b. Phycobilins
c. Chlorophylls

Photophosphorylation is the light driven or light energised synthesis of ATP and is of two main types - cyclic and non-cyclic. Which of the following is a characteristic of non-cyclic photophosphorylation?

Consider the following statements and choose the correct answer.

a. Carotenes and xanthophylls are soluble in organic solvents but carotenes are more soluble in carbon disulphide as compared to xanthophylls.
b. Glyceraldehyde-3-phosphate is a key product which is used in synthesis of both carbohydrates and fats.

Photorespiration is the light dependent process of oxygenation of RuBP and release of carbon dioxide by the photosynthetic organs of a plant. Photorespiration increases with increase of