5(A) The Cell Cycle - Independent Practice

1. Humans begin as one cell called a zygote, but when babies are born they contain billions of cells and a full grown adult contains trillions of cells. This demonstrates which of the following?

• A Mitosis prevents babies from being born with too many cells
• B Cell division is a primary factor in the growth of living things
• C Mutations allow adult humans to contain more cells than other organisms
• D Humans are the result of uncontrolled cellular division

2. The process of mitosis and cellular division allows multicellular organisms to do which of the following?

• metabolize nutrients
• perform photosynthesis
• grow larger
• repair mutations

3. Most of the life cycle of a cell is spent in interphase. Interphase contains three stages, including the G1 and G2 stages. Which of the following occurs during these gap stages?

• separation of chromosomes
• cellular growth
• DNA replication
• viral transformation

4. During interphase, the DNA is replicated to create two complete sets of DNA. The DNA is copied during which stage of the cell cycle?

• G1
• S
• G2
• M

5. DNA can be replicated, the DNA must separate –

• between the phosphate groups
• behind the deoxyribose sugars
• from the sugar-phosphate backbone
• between the nitrogen bases

6. The process of DNA replication is directed by DNA polymerase molecules. DNA polymerase would best be classified as which of the following?

• fatty acid
• enzyme
• nucleic acid
• monosaccharide

7. DNA replication occurs inside which of the following organelles?

• nucleus
• ribsosome
• Golgi body
• endoplasmic reticulum

8. When DNA replication is complete, each set of identical DNA contains one of the cell’s original strands of DNA paired with a newly constructed strand of DNA. This method of DNA replication is referred to as –

• facilitated copying
• semi-conservative
• transformational
• gene splicing

9. The purpose of mitosis is to separate the two sets of DNA created during replication and –

• redirect the expression of genes
• discard the unwanted genes
• place them into two nuclei
• mutate them into new sequences

10. Mitosis ensures that each new daughter cell that is created will be –

• genetically different from each other
• the exact same size and mass
• more complex than the original cell
• genetically identical to the parent cell