Exam 2: The Nature of Life

If there is an asymmetric charge distribution on a molecule creating a positively charged sector and a negatively charged sector, the type of molecule resulting would be _____________.

Protein molecules differ from those of carbohydrates and lipids in having nitrogen present.

Which of the following carries a single positive charge?

Reproduction in living organisms results in __________________.

The bonds that hold atoms together do so through the sharing or transfer of

Response to a stimulus ___________________.

An acid is a compound that

Classes of proteins called ___________________ function as organic catalysts for chemical reactions in cells.

Callose is produced on the bark of a plant that has been damaged.

What is the maximum number of electrons that can occupy the innermost electron orbital?

About 50% of the cytoplasm including structures within are composed of carbon, hydrogen, oxygen and nitrogen.The other 50% includes phosphorous, sulfur, potassium and calcium.

The basic 'stuff of the universe' or matter has which of the following characteristics?

Electrons are essentially

If hydrogen atoms are attached to every available attachment point of fatty acid carbon atoms in a fat, the fat is said to be unsaturated.

Covalent bonds between molecules inside living cells are often formed or broken through the addition or loss of ___________.

Which of the following is NOT an attribute of ALL living organisms?

A solution that is slightly alkaline would have a pH in the range of

The combining capacity of an atom or ion is referred to as its valence.

The linear sequence of amino acids in a polypeptide chain is called the ____________.

The volume of space in which a given electron occurs 90% of the time is called