The light reaction begins in photosystem 1.
true
true
false

False

Explanation:

The given statement is False.

The light reaction begins in photosystem 2 (PS2).

In the process of light reactions in photosynthesis energy is generated so that it can be use in the dark reactions.

During light reaction, water molecule breaks down into oxygen molecule and an electron.  this free electron attains  attains a higher energy level in the reaction center of photosystem 2. The state of an unstable electron undergoes an electron transport chain (ETC). The electron flows from PS2 to cytochrome and then to photosystem 1 (PS1). In PS1 the light-independent energy takes place where further electrons are transfered to NADPH.

ok

explanation:

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.