The ___ scale is used to measure the acidity or alkalinity of a solution , and it ranges from 0 to 14. A pH reading of 7 indicates the same number of hydrogen ions as hydroxide ions and is considered a neutral pH. Any pH value between 0 and 6.9 indicates an acidic solution while a value between 7.1 and 14 is base or alkaline.
_______ has a pH range of 7.35 to 7.45
_______ acids fall into two major types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Extracellular fluids include the blood, lymph, and fluid between the tissue, known as ____________ fluid.
A ____ or alkali is a substance that, when dissolved in water, ionizes into negatively charged hydroxide ions and positively charged ions of a metal, and turns red litmus paper blue.
In a ___________ reaction, hydrogen ions from the acid and hydroxide ions from the base join to form water. At the same time, the negative ions of the acid combine with the positive ions of the base to form the compound salt.
Because enzymes are capable of such activity, they are know as organic _________.
in humans and other living organisms, the maintenance of a balanced pH is achieved through a compound called a buffer.
The three different types of single strand ___ are the messenger, the transfer and the ribosomal.
Down
__________ acid is found in the stomach.
The fluid that bathes the cell and transports nutrients into and out of the cell is known as ___________ fluid.
_______ help control the various chemical reactions occurring in a cell, so each reaction occurs at just the right moment and at the right speed.
A substance can be tested for its acidity through the use of specially treated paper called _______ which turns from blue to red.
____ is a double-stranded molecule referred to as a double helix, it contains 46 chromosomes and passes on genetic information from one generation to the next.
An _____ is a substance that, when dissolved in water, will ionize into positively charged hydrogen ions and negatively charged ion of some other element. Basically, an acid is substance that yields hydrogen ions in solution.
______ soda has a pH of 9.0.
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