1st Semester Biology Final Review

Scientists use observations and data to form and test

• constants

• a hypothesis

• variables

• a conclusion

All the chemical processes used to build up or break down materials are called an organism's

• metabolism

• homeostasis

• adaptations

• stimuli

The smallest basic unit of matter is the

• molecule

• atom

• compound

• cell

The four main types of macromolecules in organisms are carbohydrates, lipids, nucleic acids, and

• starches

• fatty acids

• monosaccharides

• proteins

Both animal fats and plant oils are made up of glycerol and

• phospholipids

• fatty acids

• polar molecules

• saturated fats

In the lock-and-key model of enzyme function shown above in Figure 1, what is happening in step b?

• The catalyzed reaction is releasing a product

• The active sites are restructuring the enzyme

• The enzyme is causing new bonds to form between the substrates

• The substrates are beginning to bind to the enzyme

Which of the following is a major principle upon which cell theory is based?

• All cells form by free-cell formation

• All cells have DNA

• All organisms are made of cells

• All cells are eukaryotic

A map of eastern North America, showing the pH of rainfall in the various states, indicates that the pH of rain in New York State varies from 4.22 to 4.40.

According to these figures, the most acidic rainfall in New York State has a pH of

• 4.22

• 4.30

• 4.35

• 4.40

Identify the cell above in figure

• plant

• animal

• bacteria

• virus

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How is the cell shown in figure different than a prokaryotic cell?

• It has a nucleus

• It has cytoplasm

• It has DNA

• It has a cell membrane

Tags

NGSS.MS-LS1-2