Homework_3_01-12-09_C&A

Homework_3_01-12-09_C&A - Biology 5A Homework 3 January...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology 5A Homework 3 January 12-14, 2009 1. The pH in the cell wall of a certain plant is 4.5. This means that the hydrogen ion concentration in the cell wall is: A. 4.5 X 10 -14 M B. 10 -5 M < [H + ] < 10 -4 M C. - log(4.5) M D. [H + ] < [OH - ] E. antilog(4.5) M (Ans. B) 2. In the figure, the functional group surrounded by a dotted line and labeled I is a: A. carboxyl group B. carbonyl group C. amino group D. hydroxyl group E. sulfhydryl group (Ans. C) 3. In the figure, the functional group surrounded by a dotted line and labeled II is a: A. carboxyl group B. carbonyl group C. amino group D. hydroxyl group E. sulfhydryl group (Ans. D)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4. For the molecule to be electrically charged as shown in the figure, the pH must be: A. the molecule will be electrically charged as shown at every pH B. the molecule will never be electrically charged as shown at any pH C. pH < (2 to 4) D. (2 to 4) < pH < (9 to 10) E. pH > (9 to 10) (Ans. D) 5. In lecture we said that the concentration of the hydrogen ion, H
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Homework_3_01-12-09_C&amp;A - Biology 5A Homework 3 January...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online