Light Dependent Cycle

Water is split during

• photosystem 1 of the light dependent reaction

• photosystem 2 of the light dependent reaction

• calvin cycle

• cell respiration

What is the process where the energy in light is used to break up a molecule of water?

• hydrolysis

• photolysis

• glycolysis

• nicolysis

Tags

NGSS.HS-LS1-5

What does light do when it strikes the chlorophyll molecules of photosystems I and II?

• Light causes glucose to be synthesized directly inside the chlorophyll molecules of the photosystems.

• Light causes electrons to get excited (gain energy) and travel down the electron transport chain embedded in the thylakoid membrane.

• Light causes the conversion of water into carbon dioxide, oxygen, and electrons.

• Light directly causes carbon dioxide to attach to RuBP during the carbon fixation stage of the Calvin Cycle.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What is the function of NADP+?

• It absorbs light

• It is an electron carrier

• It is a light-reflecting pigment

• It acts as long-term energy storage

Where do the light reactions happen?

• mitochondria membrane

• thylakoid membrane

• stroma

• central vacuole

Tags

NGSS.HS-LS1-5

What is the main purpose of the light dependent reactions?

• To provide the energy for the calvin cycle

• To capture energy and make sugar

• To reflect green light

• To make sugars

Tags

NGSS.HS-LS1-5

Thylakoids are arranged in stacks called ____.

• Lamellae

• Stroma

• Granum

• Glucose

The gel-like material that surrounds the grana is called ____

• lamellae

• granum

• thylakoid

• stroma

The first step in photosynthesis is -

• the light dependent reaction

• the calvin cycle

• the krebs cycle

• glycolysis

Tags

NGSS.HS-LS1-5

What is the primary role of the light-dependent reactions in photosynthesis?

• To convert solar energy into chemical energy in the form of ATP and NADPH

• To fix carbon dioxide into glucose

• To release oxygen as a byproduct

• To absorb carbon dioxide from the atmosphere

Tags

NGSS.HS-LS1-5