The sun's energy comes from the burning (combustion) of hydrogen like a huge fire.

True False

How does hydrogen peroxide get into cells

For the catabolite repression control system, what would be the effect on the phenotype of the lac operon of a regulator protein (CAP) that could no longer bind cyclic AMP? It would make the lac operon: a. uninducible b. constitutive c.

John places a dried bean with a mass of 1.50 g in a cup of water and allows it to sit overnight. The next day he takes the bean out and dries off the excess water and finds the new mass to be 1.85 g.

How does the ability of the white blood cell to change shape affect its function?

In order for an object to move in uniform circular motion, it must not be accelerating O A. True OB. False

What kind of organisms make up a food web

In this experiment, why didn't we just use ethanol to extract the trimyristin (instead of dichloromethane) ? this would have saved us a step and we would have been able to recrystallize directly after filtration.

How many different enzymes may be in the cytoplasm of a bacterium? How many copies of each enzyme are there?

All vertebrate embryos have slits and

What are the various methods of measuring testosterone levels in men?