12 U Photosynthesis Review

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.

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

• ATP.

• PGAL.

• NADH.

• NADPH

Which statement is FALSE?

• Thylakoid membranes contain the photosynthetic pigments.

• The oxygen released during photosynthesis comes from water.

• RuBP is produced during cyclic photophosphorylation in the light dependent reactions.

• The light dependent reactions provide the energy for the Calvin cycle.

Red and blue light support the highest rates of photosynthesis because …

• Chlorophylls absorb light of these wavelengths more than other wavelengths.

• These are the only wavelengths that carotenoids cannot absorb.

• Light of these wavelengths have the highest energy in the visible spectrum.

• Light of these wavelengths activate the ATP synthase enzyme.

Flattened sacs of internal membranes associated with photosynthesis are called …

• Chloroplasts.

• The stroma.

• Cristae.

• Thylakoids.

The role of water molecule in light dependent reaction is to …

• Hydrolyse NADP⁺ at the end of the electron transport chain.

• Involve directly in the production of ATP.

• Replace the excited electron of reaction centre molecule in photosystem II.

• Involve directly in Calvin cycle.

Chloroplasts are...

• Structures of animal cells to produce ATP
• Organelles where lipids are elaborated
• Specialized structures of plants where food is made
• Waste organelle of plants

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Look at the image
What substances and organelle work together to absorb sunlight to perform photosynthesis in this example?

• cell wall and chloroplast
• mitochondria and water
• vacuole and carbon dioxide
• chloroplast and chlorophyll

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

Tags

NGSS.MS-LS1-6

Which sentence correctly describes photosynthesis. (assume there is enough sunlight)

• CO₂ and water combine and make O₂ and glucose
• O₂ and water combine to make glucose and CO₂
• O₂ and CO₂ combine to make water and glucose
• CO₂ and glucose combine to make O₂ and water