Chlorophylls are found embedded in the __________ membranes?

A. Stroma
B. Grana
C. Thylakoid
D. Intergrana

Xanthophylls are _________ pigments

A. Yellow
B. Red
C. Orange
D. Green

Chlorophylls mainly absorb _________ wavelengths?

A. Orange – blue
B. Violet – red
C. Yellow – orange
D. Orange – red.

Deficiency of ___________ causes yellowing in plants?

A. Magnesium
B. Iron
C. Chlorine
D. Oxygen

Light reaction takes place on/in____________?

A. Thylakoid
B. Storma
C. Chloroplast
D. Grana

Thylakoids in chloroplasts are stacked into___________?

A. Grana
B. Stroma
C. Nucleus
D. None of these

In all plants the major sites of phosynthesis are___________?

A. Leaves respire and utilize o2 and release co2.
B. Stems
C. Roots
D. Branches

The dense fluid filled region in the chloroplast is____________?

A. Grana
B. Stroma
C. Thylakoid
D. None of these

Which of the following statement about the head of a chlorophyll molecule is incorrect?

A. It is a porphyrin ring or tetrapyrrole ring structure
B. It is flat, square and light absorbing
C. Composed of carbon and nitrogen atoms with magnesium as central metal ion, which is coordinated with nitrogen.
D. It is hydrophobic

Molecular formula of chlorophyll ‘a’ molecule is___________?

A. C55h72o5n4mg
B. C55h70o6n4mg
C. C50h72o6n4mg
D. C55h70o5n4mg