The final shape of a protein is very important to its function. When proteins undergo an irreversible change in shape called ________________they ________________ perform their usual functions.

Protein structures with alpha helix or pleated sheet formation

Which statement about ecosystems is true?

The isotope shown below has C614

In a person with a disease in which the mitochondria do not produce enough energy for the cell, which organs would be the most severely affected?

Which of the following represents a potential threat to biodiversity?

Potassium, a metal with one electron in the outermost shell, will react with how many chlorine atoms? (Chlorine is a nonmetal with seven electrons in the outermost shell.)

Tay-Sachs is a serious childhood metabolic disorder where ____fail to digest certain lipids.

An unoccupied spacecraft has been sent to another planet to detect new life forms. If the probe could only send back one image, which property or properties of life would be observable in the picture?

Which of the following statements about hydrogen bonding is correct?