Question 1

Which statement best describes the principle of 'cell theory' as it relates to the cell cycle?

Accepted Answer

All cells come from pre-existing cells.

Question 2

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 3

Which process is responsible for the division of the cytoplasm during cell division?

Accepted Answer

Cytokinesis

Question 4

A scientist observes a cell with chromosomes aligned at the center of the cell. Which phase of mitosis is this cell in?

Accepted Answer

Metaphase

Question 5

Which of the following best describes the difference between mitosis and cytokinesis?

Accepted Answer

Mitosis divides the nucleus, cytokinesis divides the cytoplasm.

Question 6

In plant cells, what structure forms during cytokinesis to separate the two new cells?

Accepted Answer

Cell plate

Question 7

Which phase of mitosis is characterized by the separation of sister chromatids toward opposite poles?

Accepted Answer

Anaphase

Question 8

What is the correct sequence of mitotic phases?

Accepted Answer

Prophase, Metaphase, Anaphase, Telophase

Question 9

Which of the following is NOT a function of the G1 phase of interphase?

Accepted Answer

DNA replication

Question 10

A mutation prevents the breakdown of the nuclear envelope during mitosis. Which phase would be directly affected?

Accepted Answer

Prophase

Question 11

Which of the following best describes the role of spindle fibers during mitosis?

Accepted Answer

They attach to chromosomes and help separate sister chromatids.

Question 12

In which type of cell does a cell plate form during cytokinesis?

Accepted Answer

Plant cell

Question 13

Which event occurs during prometaphase of mitosis?

Accepted Answer

Nuclear envelope fragments and spindle fibers attach to kinetochores.

Question 14

Which process is a form of programmed cell death that is a normal part of the cell cycle?

Accepted Answer

Apoptosis

Question 15

What is the main difference between cell division in prokaryotes and eukaryotes?

Accepted Answer

Prokaryotes use binary fission, eukaryotes use mitosis.

Question 16

A cell is observed with a visible cell wall forming between two nuclei. What process is this cell undergoing?

Accepted Answer

Cytokinesis in a plant cell

Question 17

Which of the following is true about chromosomes during the S phase of interphase?

Accepted Answer

Chromosomes are duplicated.

Question 18

If a cell fails to complete cytokinesis after mitosis, what is the likely result?

Accepted Answer

A single cell with two nuclei

Question 19

Which of the following best describes the function of the centrosome during mitosis?

Accepted Answer

It organizes the spindle fibers.

Question 20

Which phase of mitosis is characterized by the reformation of the nuclear envelope and the decondensation of chromosomes?

Accepted Answer

Telophase

The Cell Cycle and Mitosis: Structured Study Notes

Study Guide - Practice Questions