Three amino acids bonded together is called a

polypeptide

dipeptide

tripeptide

septpeptide

All cells must have energy to function. What do cells use for food? A) fats B) minerals C) protein D) sugars

Which one of the biomes is considered endangered? What does this mean?

In pea plants, red flowers and round pollen are known to be recessive traits. In a dihybrid cross experiment, lots of plants with red flowers and round pollen are found in the F2 generation.

Which of the following correctly lists functions of proteins?

Between which two parts of the molecules must the bond be broken? A. Between two phosphate groups B. Between the Adenine and the ribose C. Between the ribose and phosphate D. Energy is not released, only stored

Which of the following terms have anthropologists used to refer to the observable physical characteristics that distinguish the two kinds of human beings, male and female, needed for human biological reproduction? a. Sex b. Gender c.

Which of the following would happen if cells did not have enzymes? A. Cells would not have any chemical reactions taking place B. Cells would have some chemical reactions, but not enough to support life processes C.

DNA is an incredibly long molecule, and can extend the length of a football field. how can DNA molecule fit inside a nucleus

How do flagellates move

A client's arterial blood gas results reveal a PaO2 of 55 mm Hg. The client's admitting diagnosis is acute respiratory failure secondary to community-acquired pneumonia. What is the nurse's best action?