In photosynthesis, what is the electron acceptor at the end of electron transport?

The cell in the picture to the right is in.

Celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution become limp and soft. From this we can deduce that the cells of the celery stalks are.

The bonds formed between two cysteine residues in a protein are.

The first step of the Krebs cycle involves ______ joining with ______.

Which of the following statements is true of the light-dependent reactions?

Autocrine signals bind to.

What is the correct sequence of protein transport through the endomembrane system?

A group of swim team members breaks out in a rash (folliculitis) the day after swimming at the pool.  What organism is probably responsible for the outbreak?

Growth on a BAP shows large, gray colonies that are non-hemolytic and ground glass. The gram stain shows large, gram positive rods. To rule out Bacillus anthracis, what tests should be performed next?