The energy of activation is best describes as

The process by which a white blood cell or an amoeba engulf bacteria is called pinocytosis.

Protons accumulate in the thylakoid space during electron transport between photosystems II and I. Which of the following describes what will happen to these protons next?

Chemiosmotic ATP synthesis occurs

What is the first event in the Calvin Cycle?

  This condition is best described by?

  A 73-year-old Caucasian male presents to the clinic for a checkup. He complains of dyspnea and a chronic nonproductive cough of several months duration for the last 3 years. On exam, he is thin, with a barrel-shaped chest, and he sits hunched forward with his hands on his knees breathing through pursed lips.  He confirms that he is a smoker.  What is your diagnosis?  

What is the main function of ciliated columnar cells found in our upper respiratory tract?

Degeneration is the most common valve disease.

Compared to skeletal muscle, cardiac muscle differs in that it