What conclusions can be drawn from the Moll’s half leaf experiment [the given diagram shows the schematic representation of the experiment]?

What can be said after observing the results of the experiment?
I. Negative starch test by the leaf portion present inside the bottle indicates ${\mathrm{CO}}_2$ is necessary for this process.
II. Negative test of starch, which is also shown by the portion of the leaf present in between the split of the split cork is due to the lack of ${\mathrm{CO}}_2$ and light, thus indicating that both of them are essential requirements.

1. Only I	2. Only II
3. Both I and II	4. None

C. B. van Niel proved that:

When do you think the chloroplasts will be aligned with their flat surfaces parallel to the walls of the mesophyll cells?
1. In dark
2. When light intensity is low
3. When light intensity is high
4. They are always aligned parallel to the walls

It can be correctly said about the relation between the absorption spectra of various pigments and the action spectrum of photosynthesis that:

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:

Consider the following two statements and choose the correct response from the options given below:
I. Protons and oxygen formed by splitting of water are released in the lumen of thylakoid.
II. PS II is physically located on the inner side of the membrane of the thylakoid.
1. Both I and II are true and II explains I
2. Both I and II are true but II does not explain I
3. I is true and II is false
4. I is false and II is true

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:
1. ${\mathrm{F}}_0$ is a transmembrane channel and ${\mathrm{F}}_1$ protrudes out towards stroma
2. ${\mathrm{F}}_1$ is a transmembrane channel and ${\mathrm{F}}_0$ protrudes out towards stroma
3. ${\mathrm{F}}_0$ is a transmembrane channel and ${\mathrm{F}}_1$ protrudes out towards lumen of thylakoid
4. ${\mathrm{F}}_1$ is a transmembrane channel and ${\mathrm{F}}_0$ protrudes out towards lumen of thylakoid