Biology Unit 1 Exam Review

Question 1

Nucleic acids, proteins, and other large biological molecules are known as polymers because

Accepted Answer

they contain many small, repeating subunits bonded together.

Question 2

Based on the information in this graph, which statement about enzymes is most accurate?

Accepted Answer

Enzymes only function within a specific temperature range.

Question 3

You see a child crying on the playground. You think that he fell off the swing and is hurt.

Accepted Answer

Your thought is an inference.

Question 4

A plant creates its own food from sunlight. To which characteristic of life does this apply?

Accepted Answer

All living things use energy.

Question 5

A monosaccharide is the monomer of a

Accepted Answer

carbohydrate.

Question 6

Which of the following statements is true about most enzyme assisted reactions?

Accepted Answer

They occur more quickly than reactions without enzymes.

Question 7

Which of the following is the independent (manipulated) variable in the experiment?

Accepted Answer

the chemical

Question 8

This organic macromolecule is insoluble in water, found in membranes & stores energy long-term.

Accepted Answer

Lipid

Question 9

What branch of science does this person study?

Accepted Answer

Biochemistry

Question 10

What skill is a scientist using when she listens to the sounds that whales make?

Accepted Answer

making an observation

Question 11

The shape of a protein is determined by the protein's specific sequence of

Accepted Answer

amino acids.

Question 12

Which choice shows the correct base pairing rules in DNA?

Accepted Answer

A-T; C-G

Question 13

What are these glucose polymers called?

Accepted Answer

Starch.

Question 14

All of the following are characteristics of life EXCEPT:

Accepted Answer

breathing

Question 15

Which is true about cells and enzymes?

Accepted Answer

All cells do not contain the same types of enzymes.

Question 16

DNA consists of two complementary strands wound together in a specific structure called a

Accepted Answer

double helix.

Question 17

The processes of cell signaling, immune response, and enzyme activity in a cell are carried out

Accepted Answer

by the proteins.

Question 18

Which step of the scientific method comes next?

Accepted Answer

drawing a conclusion

Question 19

The dependent variable in an experiment is

Accepted Answer

the one you measure.

Question 20

How does the structure of this enzyme help with its function?

Accepted Answer

Catalyzes specific reactions. Shapes complement each other.

Question 21

Which of the following is NOT one of the four types of macromolecules?

Accepted Answer

Cellular Fluid

Questions 21