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2. Component 1:
Q1. What is the biggest cell in a human body?
*The OVUM, the female egg, is the largest cell in the human
body.
OVUM

3. Q2. What do you have to do so that you can
see cells with a compound microscope?
*You should stain the specimen on the slide and
focus carefully.

4. UNIT
1
The history of the cell theory
Malpighi develops microscopy
Hooke gives the cell its name
Leeuwenhoek
observes microorganisms
Brown defines the nucleus
Schleiden, Schwann and Virchow develop
the cell theory.
Ramón y Cajal studies nervous tissue
Microscopes
are perfected
17th Century 19th Century 20th Century

5. Q3. Why do scientists say that cells are the basic
structure of all living things?
*Scientists believe that all living things are made up of cells
and that all cells come from other cells so that is why they
are the basic structure.

6. Component 2:
CELL
Note: Let the student give their ideas about cell. You may write it on the board or say their answer
repeatedly.
What is your idea about cell?

7. Component 3:
Using the illustration paper written the parts and function of
the cell . Let the students read and post first the part of the
cell on the board and let another student post on the board
the function of the cell.

8. Component
4A:
All about cells
Althea was in Grade 7 at school and her teacher was telling them all
about cells and although she found it interesting, she felt that she didn’t
really understand what the teacher was saying.
She decided to tell her younger brother Angelo a story about cells to see
how much she could remember about the lessons. This is what she said:
“Did you know that every living thing is made of cells and that some tiny
living things like bacteria are made up of only one cell but that human
beings are made up of 75 trillion cells. Most cells have three main parts,
but plant cells are a bit different to animal cells. I will draw them for you.”

9. Component 3:
A B
X
Y
Y
X

10. Component 4B:
Q1. Which of the two cell diagrams A and B is a plant cell?
*Diagram A is a plant cell
Q2. What is the name of the parts labelled X and Y in the two
cells?
The part labelled X is the nucleus, and the part labelled Y
is the cytoplasm.

11. Q3. Are the cells in our heart the same as the cells in our
brain? Why or why not?
Not quite the same because cells in our body are specialized, so
there are types of cells that have different structure, size, shape,
and function.

12. Prepared by:
Group 3
JENNY LOU R. ALONZO
REY PJ P. CALDERON
ZYRA M. EVANGELIO
ANNABELLE L. FEGIDERO
ANGELIE S. GARGARITANO
JASANE M. MELENDRES
PENNYLANE H. PEREZ
MAUREEN G. SCIREA
JEZREEL S SERBITO
REMEDIE J. VILLAROSA