PHOTOSYNTHESIS

In CAM plants, carbon dioxide is fixed for the first time to …

• Ribulose bisphosphate.

• Phosphoenolpyruvate.

• Glyceraldehyde-3-phosphate.

• 3-phosphoglycerate.

Cyclic photophosphorylation differs from non-cyclic photophosphorylation in that _____________ is not made from the process.

• ATP.

• PGAL.

• NADH.

• NADPH

In C4 pathway, which of the following molecules combines with carbon dioxide first?

• Glyceraldehyde phosphate

• Ribulose bisphosphate

• Phosphoenol pyruvic acid

• Citric acid

How does the calvin cycle differ from the light reactions?

• The calvin cycle takes place in the thylakoid

• The calvin cycle takes place in the stroma

• The calvin cycle takes place in the mitochondria

• The calvin cycle produces ATP to be used in the light dependent reactions

The overall reactions of photosynthesis are best summarized as …

• 12 CO₂ + 6 H₂O → C₆H₁₂O₆ + 12 O₂ + 6 H₂O.

• C₆H₁₂O₆ + 6 O₂ + 6 H₂O → 6 CO₂ + 12 H₂O.

• 6 CO₂ + 12 H₂O → C₆H₁₂O₆ + 6 O₂ + 6 H₂O.

• 6 CO₂ + 12 H₂O → C₆H₁₂O₆ + 12 O₂.

What colour of light is best absorbed by plants?

• Red and blue

• Green and Yellow

• Red and green

• Blue and green

• Only green

Which color light would likely produce the least amount of bubbles in this setup?

• green
• blue
• white
• red

What are the products of photosynthesis?

• lipids

• carbs and reactants essential for aerobic respiration

• starches

• carbs and reactants essential for anaerobic respiration

Which of the following organisms is autotrophic?

• mushroom
• mold
• green tree frog
• cyanobacterium

What is the role of Chlorophyll in photosynthesis?

• It breaks the hydrogen bonds in water molecules

• It converts light energy into chemical energy contained in bonds

• It releases absorbs green light waves and reflects all of the other ones

• it provides energy for the light dependent reactions