Question

At ph ___, the pentapeptide ala-glu-his-val-cys would contain two positively charged groups and one negatively charged group

Answer 1

Answer:

Sbsnsnsnsnsnsmsksmsnsbsvsv

Explanation:

Sbsbsjs s shs sbs s shs sbs shshaka s s shs shs smaa a asha s sba sja sjahaka a aja aja aja a aha aha aba a ab aba abavaa a a aha a anba a a sbs s shs dbd dvd d d d d. d d d d d. d d d d d. d d d d d d d. d d d d d d. d d d d d d d. d d d d. d d d d dbg g g g g h h h. j d s. s z x v. b h h g g c v v. v g g g g g t. g g g d s. a a a a a a a a a. a a a a a a. z z x. c f d d d s s. s s s akaksnzb zs bs sns sjshskamnsd dndn cjcjcjjcjcjjcjcjcj k kk k k k k kk k k kk j j jj j hahsvsmsbsbsnshd dmd jsbsbsbs

Answer 2

At pH 3.5, the given pentapeptide ala-glu-his-val-cys will contain two positively charged groups and one negatively charged group.

• Ammino acids or peptides are molecules which have both carboxylic as well as ammino groups.
• Owing to the relative concentration of the H⁺ and OH⁻ ions (i.e. the pH of the medium), they tend to convert into zwitter ions.
• This depends upon the pKₐ and pKb of the acid and the base respectively.
• Thus, two contain two positively charged groups, i.e. NH₃⁺, the pH of the solution must be in acidic region.