What is the Krebs cycle and what is its purpose?

What is the Krebs cycle?

The role of oxygen gas in our cells is to

a. catalyze reactions in glycolysis.

b. produce $\mathrm{CO}_2$.

c. form ATP.

d. accept electrons from the electron transport chain.

e. react with glucose to split water.

How would you investigate the effect of temperature on photosynthesis? Outline the steps of a practical investigation.

Assuming there is enough light and water for photosynthesis to occur, explain why a temperature between $0^{\circ} \mathrm{C}$ and $35^{\circ} \mathrm{C}$ is still important.

What is the theoretical net yield of ATP from the cellular respiration of one glucose molecule?

Discuss the function of the electron transport system.

What is the function of the electron transport system?

Both the liver and the pancreas are responsible for producing enzymes that aid in digestion. What are other functions do each perform when carrying out digestion?

Quorum sensing (introduced in Ch.$11$, Section $11.4$) allows bacteria to detect the number of neighboring cells and to trigger a response only when this number reaches a critical level. Quorum sensing is used by $V.fischeri$ in light production and by many pathogenic bacteria, including $Vibrio$ $cholerae$, to turn on genes for toxin production only when a critical cell density is reached. Why might quorum sensing be beneficial to pathogenic bacteria?

What are quorum sensing molecules?

What is quorum sensing and how does it control bioluminescence?

Describe how a virus might be genetically engineered to make it highly virulent.

$$\textbf {\color{#19804f}{ Describe}}\text{ how enzymes increase the speed of chemical reactions.}$$