#Question id: 10961
#Unit 7. System Physiology – Animal
Over the past 12 weeks, a 75-year-old man with a moderate aortic stenosis has developed shortness of breath and chest pains during exertion. He appears pale. Test of his stool for blood is positive. Laboratory studies show the following: hemoglobin 7.2 g/dL, and mean corpuscular volume 75. A blood smear shows microcytic, hypochromic erythrocytes. Which of the following is the most likely diagnosis?
#Question id: 714
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the length of a polypeptide with 100 amino acids residue in a single contiguous alpha helix?
#Question id: 9276
#Unit 6. System Physiology – Plant
The carotenoid b-carotene, whose structure and absorption spectrum at,
#Question id: 15681
#Unit 2. Cellular Organization
#Question id: 347
#Unit 1. Molecules and their Interaction Relevant to Biology
A beaker contains 100 milliliters (mL) of NaOH solution at pH = 13. A technician carefully pours into the beaker 10 mL of HCl at pH = 1. Which of the following statements correctly describes the result of this mixing?