Light Reaction

What are the products to the light reactions?

• Sunlight and Oxygen

• Sunlight and Water

• ATP, NADPH and Oxygen

• ADP, NADP+ and Oxygen

Tags

NGSS.HS-LS1-5

Where do the light reactions occur?

• Cytoplasm

• Stroma

• Granum

• Thylakoid

Tags

NGSS.HS-LS1-5

In the light reactions of photosynthesis, H⁺ are pumped:

• In from the stroma

• Out of the stroma

• Into the chloroplast

• Out of the thylakoid

Tags

NGSS.HS-LS1-5

Which of the following are products of the light dependent reactions of photosynthesis are utilized in the light-independent reactions?

• O₂ and glucose

• H₂O and O₂

• electrons and H+

• ATP and NADPH

Answer explanation

Take a look at your notes, it's all in there!

Tags

NGSS.HS-LS1-5

The light reactions occur in the ________ and the light independent reactions take place in the ________.

• Chloroplast / thylakoid membrane

• stroma / thylakoid

• mesophyll / stomata

• thylakoid membrane / stroma

Answer explanation

Learn it, learn it, learn it!

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following is NOT a product of the light reactions?

• Oxygen

• NADPH

• ATP

• Glucose (Sugar)

Tags

NGSS.HS-LS1-5

Where do the electrons in Photosystem I go?

• they go to Photosystem II

• they get collected by ADP and turn into ATP

• they get collected by NADP+ and turn into NADPH

• they go to the ATP Synthase

After light excites the electron and they leave Photosystem II to travel down the first electron transport chain, how are these electrons replaced to Photosystem II?

• Oxygen is reduced and the electrons are given to the chlorophyll molecules of photosystem II.

• Carbon dioxide is split, and the electrons are given to the chlorophyll molecules of photosystem II.

• Hydrogen undergoes fusion, and the electrons are given to the chlorophyll molecules of photosystem II.

• Water is split, and the electrons are given to the chlorophyll molecules of photosystem II.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which photosystem comes first in the electron transport chain?

• Photosystem 1

• Photosystem 2

• Photolysis

• ATP Synthase

In what part of photosynthesis is water broken down?

• The Calvin Cycle

• The Dark Reactions

• Photosystem 1 of the ETC

• Photosystem 2 of the ETC