Question

1. where is the location of the electron transport chain?

a. mitochondrial matrix

b. mitochondrial inner membrane

c cytoplasm

2. photophosphorylation involves the transfer of phosphateto ADP via

a. glycolysis

b krebs cycle

c. sunlight energy

d. oxidation-reduction reaction

3. photosynthesis involves absorption of light in the

a. microwave region of the electromagnetic spectrum

b. infrared region of the electromagnetic spectrum

c. visible region of the electromagnetic spectrum

d. ultraviolet region of the electromagnetic spectrum

e. x-ray region of the electromagnetic spectrum

Answer 1

1. Electron transport chain helps in the transfer of electrons. It is found in mitochondrial inner membrane. Glycolysis occurs in the cytoplasm and Kreb cycle occurs in mitochondrial matrix.

Answer. b

2. Photophosphorylation occurs in the process of photosynthesis when energy of sunlight is trapped by the chlorophyll molecules. So transfer of phosphate to ADP occurs through sunlight energy via oxidation-reduction reactions. Energy from sunlight excited the electrons for these reactions.

Answer.d

3. Photosynthesis absorbs light of visible region of the electromagnetic spectrum. Absorption occurs most in red and blue light region.

Answer. c