POLYTECHNIC UNIVERSITY OF THE PHILIPPINES
Office of the Vice President for Academic Affairs
COLLEGE OF SCIENCE
LABORATORY ACTIVITY No. _2_
ANATOMY AND PHYSIOLOGY
THE CELL AND ITS CYCLE
TOPIC: THE CELL
, POLYTECHNIC UNIVERSITY OF THE PHILIPPINES
Office of the Vice President for Academic Affairs
COLLEGE OF SCIENCE
INTRODUCTION
As we all know the cell is the basic unit of life, the human body is composed of trillions of
cells. Bacteria and yeast, for example, are single-celled creatures. There are billions of cells in
large plants and animals. Humans are made up of around 75 trillion cells (Medline plus, 2021).
Cell goes through cycle called the Cell cycle which is a sequence of events that occur in a cell as
it develops and divides. A cell spends most of its time in what is known as interphase, which is
when it grows, copies its chromosomes, and prepares for cell division.
The cell cycle is divided into four phases: G1, S, G2, and M. The G1 stage is when the
cell prepares to divide. To do this, the cell enters the S phase which it replicates all the DNA.
Once the DNA has been duplicated and there is a complete additional set of all genetic material,
the cell enters the G2 stage which organizes and condenses the genetic material and prepares
to divide. The cell splits the two copies of the genetic material into two daughter cells at this
moment. After M phase, cell division occurs, leaving two cells and allowing the cell cycle to restart.
(Brody, n.d)
This activity is essential because it helps us to learn about what occurs during the cell
cycle during both mitosis and meiosis using things that can be found at home. Including interphase
and cytokinesis, which we have rarely discussed in recent years of high school.
OBJECTIVE
• To be able to create an illustration of the cell cycle for both mitosis and meiosis
using different things that can be found at home.
• To be able to know the cell, its parts, and functions
• To determine what happens during meiosis and mitosis
• Compare and contrast meiosis and mitosis
Office of the Vice President for Academic Affairs
COLLEGE OF SCIENCE
LABORATORY ACTIVITY No. _2_
ANATOMY AND PHYSIOLOGY
THE CELL AND ITS CYCLE
TOPIC: THE CELL
, POLYTECHNIC UNIVERSITY OF THE PHILIPPINES
Office of the Vice President for Academic Affairs
COLLEGE OF SCIENCE
INTRODUCTION
As we all know the cell is the basic unit of life, the human body is composed of trillions of
cells. Bacteria and yeast, for example, are single-celled creatures. There are billions of cells in
large plants and animals. Humans are made up of around 75 trillion cells (Medline plus, 2021).
Cell goes through cycle called the Cell cycle which is a sequence of events that occur in a cell as
it develops and divides. A cell spends most of its time in what is known as interphase, which is
when it grows, copies its chromosomes, and prepares for cell division.
The cell cycle is divided into four phases: G1, S, G2, and M. The G1 stage is when the
cell prepares to divide. To do this, the cell enters the S phase which it replicates all the DNA.
Once the DNA has been duplicated and there is a complete additional set of all genetic material,
the cell enters the G2 stage which organizes and condenses the genetic material and prepares
to divide. The cell splits the two copies of the genetic material into two daughter cells at this
moment. After M phase, cell division occurs, leaving two cells and allowing the cell cycle to restart.
(Brody, n.d)
This activity is essential because it helps us to learn about what occurs during the cell
cycle during both mitosis and meiosis using things that can be found at home. Including interphase
and cytokinesis, which we have rarely discussed in recent years of high school.
OBJECTIVE
• To be able to create an illustration of the cell cycle for both mitosis and meiosis
using different things that can be found at home.
• To be able to know the cell, its parts, and functions
• To determine what happens during meiosis and mitosis
• Compare and contrast meiosis and mitosis
