AP Biology Photosynthesis Review

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin Cycle?

• CO₂ and glucose
• ATP and NADPH
• ADP, P and NADP+
• H₂Oand O₂

Where does the Calvin cycle take place?

• Stroma
• thylakoid
• thylakoid space
• matrix

When oxygen is released as a result of photosynthesis, it is a direct by-product of____

• reducing NADP+
• splitting water molecules
• chemiosmosis
• electron transfer in photosystem 1

What is the main role of the pigment molecules in a light-harvesting complex in the thylakoid membranes?

• split water and release oxygen to te reaction-center chloropyll
• transfer light energy to the reaction-center chlorophyll
• synthesize ATP
• transfer electrons to NADPH

Tags

NGSS.HS-LS1-5

In what respect are the photosynthetic adaptations of C₄ plants and CAM plants similar?

• an enzyme other than Rubisco carries out the first step in carbon fixation 
• both types of plants make most of their sugar in the dark
• both types of plants make their sugar without the Calvin cycle
• Stomata normally close during the day

T or F: The light reactions of photosynthesis suppley the calvin cyucle with ATP and NADPH

• True
• False

Tags

NGSS.HS-LS1-5

T or F: In photosynthetic cells, the electron transport chains are located in the thylakoid membranes and mitochondrial inener membranes.

• True
• False

In chemiosimosis in mitochondria, protons flow from the intermembrane space into the matrix, whearas in chemiosimosis in chloroplast, protons flow from __________

• the thylakoid space to the stoma
• the stoma to the thylakoid space
• the matrix into the stoma
• the stoma into the cytosol

Which of the following events occurs in the light reactions of photosynthesis?

• NADP+ is produced
• ATP is consumed to yield ADP
• light is absorbed and funneled to  chlorophyll a
• carbon dioxide is fixed in organic molecules

Tags

NGSS.HS-LS1-5

The color of light least effective in driving photosynthesis is _________

• blue
• red
• orange
• green

Tags

NGSS.HS-LS1-5