Exam 2: Chemistry of Living Things

A positively or negatively charged particle is called a(n) ____________________.

The four groups of organic compounds are ____________________, ____________________, ____________________, and ____________________ ____________________.

Match the element name with its symbol. -C

The nucleus of every human cell contains how many chromosomes?

____________________ ____________________ is involved in the process of heredity.

Electrolytes are responsible for the acidity or alkalinity of solutions and can conduct an electrical charge.

The number of elements found naturally in our world is ____________________.

The sour taste of lemons is due to the presence of a compound called a(n) _____.

Buffers help a living organism to maintain a constant pH value.

Molecules that contain carbon, hydrogen, and oxygen are known as ____________ _____________.

Match the element name with its symbol. -P

Compounds can be classified into the following three groups: ____________________, ____________________, and ____________________.

A solution with a pH of 5 would tell you it is _____.

Fructose found in fruit and honey is an example of a disaccharide.

Medical imaging refers to invasive techniques and processes.

RNA structures are unique for each person and so are usable as a means of identification.

Which of the following is an example of a lipid?

Which of the following would best be described as a scanning procedure that provides visualization of fluid, soft tissue, and body structures without the use of radiation?

Match the element name with its symbol. -Ca

Match the element name with its symbol. -Mg