Pure water has a neutral pH. What is the pH of pure water? F.6 G.7 H.8 I. 9

Classify each of the following as acidic, basic, or neutral.

A) Ph of 3

B) 2:1 ratio of OH- to H+

C) H+ concentration of 10^-5

D) Orange juice

E) Ph of 7

F) Pure water

G) Soap

What is the range of the pH scale?

Pure water has a neutral pH of _____ or _____ ions.

A common measure for the acidity of a solution is its pH. It is defined by $\mathrm{pH}=-\log \left[\mathrm{H}^{+}\right]$, where $\mathrm{H}^{+}$ measures the concentration of hydrogen ions in the solution. The $\mathrm{pH}$ of pure water is 7. Solutions that are more acidic than pure water have a lower pH, while solutions that are less acidic (referred to as basic solutions) have a higher pH.

Acid rain sometimes has a pH as low as 4. How much greater is the concentration of hydrogen ions in such rain than in pure water?

List five sources of hydrogen ions in the body fluids, and name an acid that originates from each source.

Which of the following is NOT a function of proteins?

A. store and transmit genetic information

B. help to fight disease

C. control the rate of reactions

D. move substances into or out of cells

Calculate the pH of each of the following solutions. 0.100 M sodium propanoate $\left( \mathrm { NaC } _ { 3 } \mathrm { H } _ { 5 } \mathrm { O } _ { 2 } \right)$

Circle the letter of each sentence that is true about fungi.
a. They are heterotrophs.
b. They have cell walls.
c. They are photosynthetic.
d. They are eukaryotic.

As part of the cell membrane, a main function of peripheral proteins is to provide _________, while a main function of ________ proteins is to provide _________.

When fructose and glucose are bonded together they form what?

RNA is a polymer of ____________________.

a. Deoxyribonucleotide

b. Ribonucleotide

c. Cytosol

d. Fatty acid

A molecule of DNA contains two polymer strands called ___________ , made by bonding together many monomers called ___________ . Each monomer contains three parts: a ___________ , a ___________ , and a ___________ .

During transcription, which parts of a DNA molecule are transcribed into RNA?