Chapter 3 – Cells: The Living Units Concepts

Question 1

Differentiate between intracellular and extracellular materials.

Question 2

List the predominant molecules of the cell membrane.

Question 3

Define phospholipids and explain how they are arranged to form a cell membrane.

Question 4

Describe the fluid nature of cell membranes.

Question 5

Describe the structure and arrangement of phospholipids, glycolipids, and cholesterol in
cell membranes.

Question 6

Differentiate between integral and peripheral membrane proteins

Question 7

Identify a protein as being an integral or peripheral membrane protein in a given
scenario.

Question 8

Identify the functions of some integral proteins.

Question 9

Identify the functions of some peripheral proteins.

Question 10

Describe how DNA is replicated and identify the roles of specific enzymes in the process.

Question 11

Describe the concept of semiconservative replication and explain how DNA replication meets these requirements.

Question 12

Describe the role of DNA polymerase and DNA ligase in DNA replication.

Question 13

Give the sequence of one strand of DNA if given its complementary sequence.

Question 14

Describe the flow of information from gene to mRNA to protein.

Question 15

Describe the role of mRNA in transcription.

Question 16

Explain what process occurs in the initiation step of transcription.

Question 17

Explain what process occurs in the elongation step of transcription.

Question 18

Explain what process occurs in the termination step of transcription.

Question 19

Recall the steps and events of transcription and explain how each occurs.

Question 20

Explain what the role of the promoter is in transcription.

Question 21

Predict the mRNA sequence of a gene if given the template strand of a DNA sequence.

Question 22

Recall the steps and events of translation and explain how each occurs.

Question 23

Explain what process occurs in the initiation step of translation.

Question 24

Explain what process occurs in the elongation step of translation.

Question 25

Explain what process occurs in the termination step of translation.

Question 26

Explain what happens during the codon recognition, peptide bond formation, and translocation steps of the elongation stage of translation.

Question 27

Explain the importance of the initiator tRNA in translation.

Question 28

Identify the role of ribosomes in translation.

Question 29

Describe the role of tRNA in translation.

Question 30

Describe the role of rRNA in translation.

Question 31

Use the genetic code to predict the amino acid sequence that would be produced from a given mRNA sequence.

Question 32

Predict the sequence of an anticodon if given the sequence of the the corresponding codon.

Question 33

Predict the sequence of a codon if given the sequence of the corresponding anticodon.

Question 34

Describe the overall process of gene expression in cells.

Question 35

Predict the amino acid sequence that would be produced if given the template strand of a DNA sequence.