Bioman Photosynthesis Quiz

Where does photosynthesis occur?

• Mitochondria

• Chloroplast

• Nucleus

• Ribosome

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What does light do when it strikes the chlorophyll molecules of photosystems 1 & 2?

• Causes electrons to become excited (gain energy)

• Causes chlorophyll to break down

• Produces oxygen directly

• Absorbs water molecules

Tags

NGSS.HS-LS1-5

How are the electrons replaced by Photosystem 2 after they leave to travel down the electron transport chain?

• By absorbing sunlight directly

• By water splitting

• By ATP synthesis

• By NADP+ reduction

What is the process called where water is split at Photosystem 2, resulting in the production of hydrogen ions and oxygen?

• Photolysis

• Hydrolysis

• Oxidation

• Respiration

Tags

NGSS.HS-LS1-5

As electrons travel from Photosystem 2 down the first electron transport chain, what is their energy used for?

• To produce glucose directly

• To pump hydrogen ions into the thylakoid space, creating a concentration gradient for ATP synthesis

• To generate oxygen molecules

• To break down ATP into ADP and phosphate

Tags

NGSS.HS-LS1-5

Why do hydrogen ions flow from the thylakoid space to the stroma through ATP synthase?

• They flow passively from high to low concentration via facilitated diffusion. As they flow through ATP synthase, the enzyme spins and produces ATP.

• They flow actively from low to high concentration, requiring energy input from ATP.

• They flow passively from low to high concentration via facilitated diffusion, producing NADPH instead of ATP.

• They flow actively from high to low concentration, requiring energy input from NADPH.

Tags

NGSS.HS-LS1-5

What is the role of ATP synthase in the production of ATP during the movement of hydrogen ions?

• ATP synthase rotates as hydrogen ions pass through it, facilitating the production of ATP.

• ATP synthase breaks down ATP into ADP and Pi as hydrogen ions pass through it.

• ATP synthase prevents the movement of hydrogen ions to maintain concentration gradients.

• ATP synthase converts NADPH into ATP during the movement of hydrogen ions.

What causes the movement of hydrogen ions from the thylakoid space to the stroma?

• The high concentration of hydrogen ions in the thylakoid space compared to the stroma.

• The active transport of hydrogen ions using ATP energy.

• The breakdown of NADPH in the stroma.

• The low concentration of hydrogen ions in the thylakoid space compared to the stroma.

What is the primary function of facilitated diffusion in the process shown?

• To allow hydrogen ions to move from high to low concentration and produce ATP.

• To actively transport hydrogen ions from low to high concentration.

• To convert ATP into ADP and Pi during the movement of hydrogen ions.

• To prevent the movement of hydrogen ions across the membrane.

After electrons get excited by light a second time (at photosystem 1), where do they go?

• They travel down a second electron transport chain and are donated to NADP+, which becomes NADPH (an electron carrier).

• They are stored in the thylakoid space for later use.

• They are used directly to produce ATP.

• They are absorbed by the stroma for sugar production.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5