Considering normal human blood ranges from pH 7.35 to pH 7.45, Table 4.1 predicts that:
A. the R group of aspartate is protonated.
B. the R group of glutamate is protonated.
C. the R group of arginine is protonated.
D. the R group of lysine is acidic.
E. the R group of arginine is acidic.
C
You might also like to view...
Giardia intestinalis and Trichomoniasis vaginalis lack ________ and have ________
A) a flagellum / cilia instead B) mitochondria / an anaerobic metabolism C) a cell wall / a rigid cell membrane D) cysts / sporozoites instead
Which protein directs apoptosis?
A. growth factor B. oncogene C. chimeric gene D. caspase E. transposase
Globular proteins fold up into compact, spherical structures that have uneven surfaces. They tend to form multisubunit complexes, which also have a rounded shape
Fibrous proteins, in contrast, span relatively large distances within the cell and in the extracellular space. Which of the proteins below is not classified as a fibrous protein? (a) elastase (b) collagen (c) keratin (d) elastin
The mechanism that causes a vine’s tendrils to grow around an object, such as a wire fenceline, is called ____
a. thigmotropism b. phototropism c. gravitropism d. vernalization e. photoperiodism