C. B. van Niel proved that:

1.	Plants produce glucose when they grow.
2.	Blue and red light are effective for photosynthesis.
3.	It is only the green parts of the plants that could release oxygen.
4.	Hydrogen from a suitable oxidizable compound reduces carbon dioxide to carbohydrates.

What is true regarding PSI and PSII?
1. PS I works before PS II during the light reaction
2. A single chlorophyll a molecule makes the reaction center in both PS I and PS II
3. The reaction center of PS I is P680 and in PS II is P700
4. LHC is seen in PS I but not in PS II

The electrons needed to replace those removed from PS I are provided by:

The stroma lamellae membranes:
1. have both PS II and NADP reductase enzyme
2. have PS II but not NADP reductase enzyme
3. lack PS II but have NADP reductase enzyme
4. lack both PS II and NADP reductase enzyme

The NADP reductase enzyme is located:

The ATP synthase consists of two parts where:

How many carbon atoms does the primary carbon dioxide acceptor have in C₃  photosynthesis?

How many ATP and NADPH are respectively required to make one molecule of glucose through the Calvin pathway?

Identify the incorrect statement regarding the comparison of ${\mathrm{C}}_4$ plants to the ${\mathrm{C}}_3$ plants:
1. They tolerate higher temperatures
2. They show a response to high light intensities
3. They have a lower productivity of biomass
4. They lack photorespiration

The bundle sheath cells are characterized by: