The Event That Signals the Start of Anaphase Is

question 8

Multiple Choice

The event that signals the start of anaphase is

• A)division of the centromeres to separate sister chromatids.
• B)migration of the centrioles to opposite poles of the nuclear space.
• C)a cleavage furrow starts to form.
• D)asters disappear.

---

Definitions:

Electron Transport

A series of chemical reactions within a cell that transfers electrons from donor molecules to acceptor molecules, creating energy.

Photosystem I

A complex of proteins and pigments in chloroplasts that absorbs light during photosynthesis, playing a key role in the light-dependent reactions by passing electrons to a series of electron carriers.

Photosystem II

A component of the chloroplasts in plants and algae involved in the light-dependent reactions of photosynthesis, particularly in water-splitting and oxygen production.

Cyclic Electron Pathway

Alternate form of the light-dependent reactions in photosynthesis that does not produce NADPH.