RPAScience A Level Light Dependent Reactions

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

What are the two products of the light reactions that are needed for the calvin cycle?

• NAD and NADPH
• NADP + and Glucose
• NADPH and ATP
• Oxygen and NADPH

Tags

NGSS.HS-LS1-5

What supplies the electron that is lost in PS II?

• oxygen
• water
• glucose
• rubisco

ATP gets formed in the light dependent reaction by which process?

• Chemiosmosis
• Photosmosis
• Diffusion
• Active Transport

Where does photoactivation of electrons take place

• Photosystems I and II

• Photosystem I only

• Photosystem II only

• Electron Transfer Chain

What supplies the electrons that are lost in photosystem I (PSI)?

• the electrons from PS II
• water
• glucose
• oxygen

Tags

NGSS.HS-LS1-5

What is the purpose of splitting water in PS2 of the light dependent reaction?

• Provides e- for PS2 and H+ for the thylakoid space
• To produce Oxygen for animals
• There is no purpose

It is important to create a concentration of H+  in the thylakoid space so that the H+ can diffuse through_________ to create ______.

• ATP synthase, ATP
• NADH, NADPH
• proton pump, protons

According to this absorption spectrum, what color is not used by the chlorophyll pigments?

• green
• blue
• yellow
• red

Tags

NGSS.HS-LS1-5

Protons move into the thylakoid due to the

• concentration gradient in the stroma
•   Brownian motion of the protons.
•   peer pressure of the cool electrons in the stroma.  
• movement of electrons through the electron transport chain

Tags

NGSS.HS-LS1-7