Question 1

Which of the following is NOT one of the three primary regions of a generalized animal cell?

Accepted Answer

Mitochondria

Question 2

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

Accepted Answer

S phase

Question 3

What is the primary function of the mitochondria in a eukaryotic cell?

Accepted Answer

Energy production through ATP synthesis

Question 4

If a cell is observed under a microscope and chromosomes are aligned at the center of the cell, which stage of mitosis is being observed?

Accepted Answer

Metaphase

Question 5

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 6

A mutation in which organelle would most directly affect the cell’s ability to break down waste products?

Accepted Answer

Lysosome

Question 7

Which equation best represents the process of cellular respiration occurring in the mitochondria?

Accepted Answer

$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP$

Question 8

Which structure is responsible for organizing the mitotic spindle during cell division?

Accepted Answer

Centrosome

Question 9

A cell is observed with two distinct nuclei forming and the cytoplasm beginning to divide. Which stage is this?

Accepted Answer

Telophase and cytokinesis

Question 10

Which of the following best describes the function of ribosomes?

Accepted Answer

Synthesize proteins

Question 11

If a cell’s plasma membrane is damaged, which of the following is most likely to occur?

Accepted Answer

Loss of selective permeability

Question 12

Which organelle contains hydrolytic enzymes for intracellular digestion?

Accepted Answer

Lysosome

Question 13

During which stage of mitosis do sister chromatids separate and move toward opposite poles?

Accepted Answer

Anaphase

Question 14

Which of the following is a correct sequence of events during mitosis?

Accepted Answer

Prophase → Metaphase → Anaphase → Telophase

Question 15

Which cellular structure is most directly involved in the synthesis of steroid hormones?

Accepted Answer

Smooth endoplasmic reticulum

Question 16

A scientist observes a cell with extensive rough endoplasmic reticulum. What is the most likely function of this cell?

Accepted Answer

Secretion of large amounts of protein

Question 17

Which of the following best describes cytokinesis?

Accepted Answer

Division of the cytoplasm

Question 18

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

Accepted Answer

A single cell with two nuclei

Question 19

Which of the following is the correct formula for the number of chromosomes in a human somatic cell after mitosis?

Accepted Answer

$2n = 46$

Question 20

A cell is observed with condensed chromatin, disappearance of the nuclear envelope, and spindle fibers forming. Which stage of mitosis is this?

Accepted Answer

Prophase

Cell Anatomy and Division: Structure and Function in Animal Cells

Study Guide - Practice Questions