Unit 1 Exam Review (Holt McDougal)

Which aspects of life on Earth are accounted for by evolution?

Which phrase best describes an exothermic chemical reaction?

Hydrogen bonds can form between regions of polar molecules that are

Biotechnology raises ethical questions, primarily concerning the

The basic unit of life is

One way in which experimental research is different from observation research is

When would a scientist know if his data supports his hypothesis?

An individual living thing is called a(n)

DNA and RNA are two types of

Which of the following is the best example of biodiversity?

Atoms connected by covalent bonds share

Which of these characteristics is shared by all living things?

Which phrase best defines a gene?

Why is water necessary to your body?

What is a compound?

Changes in temperature and pH can decrease an enzyme's activity by breaking

Which of the following cannot be broken down by ordinary chemical means?

The specific reactants that an enzyme acts on are called

The maintenance of constant internal conditions in an organism is known as

Enzymes affect chemical reactions in living organisms by

An injury that affects a ligament rather than a bone is likely to be examined using

Which word best describes a scientific hypothesis?

Proteins are long molecules that are built from various combination of

Knowledge of biology can promote advanced by helping all people make

The condition that is manipulated by a scientist is the

Which of the following is an example of transgenic organisms?

Which phrase best describes the effect of a catalyst on a chemical reaction?

Which statement best explains why the shape of teeth differs according to diet of species

Data mining contributes to the field of genomics by finding

Which phrase best describes Earth's biodiversity?

Chemical reactions change substances into different substances by

Which of the following is a characteristic of a scientific theory?

Which of the following is the best example of a scientific model?

Identify the reactants in the following chemical reaction: 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂

The attraction among molecules of different substances is called

Proteins are composed of which molecules?

An ion is formed when an atom gains or loses

The use and application of living things and biological processes is known as

Complex studies, such as those that investigate disease transmission use which of the following

A beneficial inherited trait that is passed on to future generations is a(n)

The diagram shows an enzyme (yellow) binding to a substrate (green). When reaction is complete

Which is a true statement about biology's unanswered questions?

The double arrows tell you that the following reaction CO₂ + H₂O ⇄ CO₂CO₃

Which of the following phrases best describes a solvent?

An electron microscope would be the best choice for viewing

Carbon is unique due to the carbon atom's

A solution with a high concentration of H+ ions

Fats, oils, and cholesterol are all types of

The term biosphere refers to the parts of Earth that contain

At all levels of life, when related parts interact to form a whole they form a

Which category of carbon-based molecules includes sugars and starches

Which phrase best describes atoms?

Term for the amount of energy that needs to be added for a chemical reaction to start