General Biology Practice Exams FREE Sample Exam — Fixed Set

Many archaea live in hot springs or very salty water, but their cells still lack a membrane-bound nucleus. Archaea are therefore:

A formula that reliably describes how the period of a pendulum relates to its length under stated conditions illustrates a scientific:

How does a biological community differ from a population?

A sunflower turns its leaves toward light during the day. Which property of life does this best illustrate?

A group written as -COOH that can donate a hydrogen ion and make a molecule act as an acid is the:

A neutral atom has 17 protons. How many electrons does it have?

Two atoms both have 6 protons, so they must be the same element because an element’s identity is determined by:

Human blood must stay near pH 7.4. If a small amount of acid enters the blood, a buffer such as bicarbonate helps by:

In a molecule of H2, the two hydrogen atoms are held together by:

Joining 10 glucose units into a single chain by dehydration synthesis (ignoring branching) releases how many water molecules?

A molecule contains carbon, hydrogen, oxygen, nitrogen, and phosphorus, and is built from nucleotides. It must be what?

Sucrose, common table sugar, is formed from which pair of monomers?