Why do unicellular organisms need to copy and divide their cells?

• to repair damages

• to create a new organism

• to grow the organism

• to copy the DNA

Tags

NGSS.MS-LS3-2

Cells eventually age and die. What happens to ensure an adequate supply of healthy cells in a multicellular organism?

• Living cells multiply and divide, making new cells.

• Living cells share nutrients with dead cells.

• Cells grow larger to take up the empty space left by dead cells.

• Dead cells are not replaced, you are born with all of the cells needed for your lifetime.

Tags

NGSS.HS-LS1-4

Which are true of Interphase? Check all that apply!

• The cell is doing its normal job.

• The cell membrane begins to dissolves.

• The cell doubles in size.

• The DNA is copied.

• The cell is copied.

What is the relationship between chromosomes and chromatids?

• A chromosome is made up of 2 chromatids.

• A chromatid is made up of 2 chromosomes.

• Both are made up of DNA.

• Both make protein molecules.

Which of the following would be the best label for the green structure in the image.

• Chromosome

• Chromatid

• Centriole

• Centromere

Which phase of the cell cycle is the longest?

• Prophase

• Metaphase

• Interphase

• Cytokinesis

In what phase does the DNA pack into chromosoms?

• Metaphase

• Prophase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

Which of the following is true about the correct order of the cell cycle with mitosis broken down?

• Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

• Interphase, Mitosis, Cytokinesis

• Cytokinesis, Telophase, Prophase, Metaphase, Anaphase, Interphase

• Interphase, Metaphase, Prophase, Anaphase, Telophase, Cytokinesis

Tags

NGSS.HS-LS1-4

In which phase do the chromosomes line up down the middle of the cell?

• Anaphase

• Prophase

• Telophase

• Metaphase

During which phase are the chromatids being pulled apart?

• Telophase

• Anaphase

• Metaphase

• Prophase