Light Reactions

Match

Match the following structures found in the chloroplast to their function

• Outer membrane

• Thylakoid

• Grana

• Lamellae

• Stroma

Holds the form of the organelle and lets substances in and out

Traps light energy and photolyses water

A stack of thylakoids

Connect Grana together

The inner fluid. Contains enzymes, starch and the chloroplast's genome

• Holds the form of the organelle and lets substances in and out

• Traps light energy and photolyses water

• A stack of thylakoids

• Connect Grana together

• The inner fluid. Contains enzymes, starch and the chloroplast's genome

Multiple Choice

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

Multiple Choice

Where does the Oxygen we breathe come from?

• From chlorophyll

• From the Krebs cycle in mitochondria

• From water used in the photolysis reaction

• From water in respiration reactions

Reorder

Reorder the following stages of the light dependent processes in photosynthesis

• Sunlight strikes the chlorophyll in the thylakoid membranes

• Light energy is used to split water into oxygen, protons and electrons

• The electrons pass from the chlorophyll to an electron transport chain

• The energy lost by electrons as they pass through the electron transport chain is used to make ATP

• NADP+ molecules are converted to NADPH as they carry electrons to the stroma of the chloroplast for the light independent reaction

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5