The Cell

 

Lesson 1

THE CELL

Parts of the cell

Objective: To know the Cell as a structural and functional unit of all living beings

Key words: cell, nucleus,cytoplasm, cell wall,organelles

Vocabulary

N°	English	Spanish
1.	Answer	responder
2.	Birds	pájaros
3.	Chlorophyll	clorofila
4.	Environment	ambiente
5.	Float	flotar
6.	Genetic	genética
7.	Look	ver
8.	Living being	seres vivos
9.	Life	vida
10.	Pressure	presión
11.	Sizez	tamaño
12.	Shapes	formas
13.	Storage	almacenar
14.	Smallest	pequeñísima

Lesson plan n°1 – English version

Lesson plan n°1 – Spanish version

What is a cell?

The cell is a basic unit of life. All organisms, from the simplest to the most complex are made up of one or more cells.

Cells have the ability to perform the three vital functions: nutrition, relationship, and reproduction.

Wherever you look, there are living things such as trees, birds and many others living beings.

They are all made of cells:

All living organisms are composed of one (unicellular) or more (multicellular) cells.

A unicellular being depends on a single cell for all its vital functions, whereas a multicellular organism has specialized cells to perform different functions that collectively support the organism.

As we see, we can find cells in animals and plants, BUT not all cells are the same. A plant cell and an animal cell are shown below

These are the parts that both cells have in common 

Definition of the parts of the cell

 

Cytoplasm is a viscous liquid that surrounds the organelles and acts as a site for many important chemical reactions to take place.

 

Membrane is a semi-permeable film that holds the cell together, keeping the cytoplasm apart from the outside environment.

 

Vacuoles are essentially membrane-enclosed compartments used for storage and regulation of internal pressure in plant cells.

 

Mitochondria is the site of cellular respiration (energy production for the cell).

 

The Nucleus controls all of the cell’s functions and contains the genetic material (chromosomes) needed for the cell to reproduce.

Cell Wall is a rigid exterior of plant cells, and is made primarily of cellulose.

let's watch the following video 

Let's practice!

Activity 1

Find words about the composition of the cell in the word search.

Activity 2

Complete the sentences according to the infromation about the cell.

Activity 3

Answer the following questions about the cell.

Printed version activity 

Types of the cell and their vital functions - Eukaryotic Cell.

 

LESSON 2

TYPES OF CELLS AND THEIR VITAL FUNCTIONS (EUKARYOTIC CELL)

Objective: To know the different type of cells and their classification.

Key words: eukaryotic cell, nucleus mitochondria, golgi body, vesicles,endoplasmic reticulum, cell membrane, cell wall, vacuole, chloroplasts. 

Vocabulary

N°	English	Spanish
1.	Carry out	Llevar a cabo
2.	Cell	Célula
3.	Countless	Incontables
4.	Exit	Salida
5.	Genetic	Genético
6.	Golgi body	Aparato Golgi
7.	Inside	Dentro
8.	Jelly	Gelatina
9.	Key	Llave
10.	Layer	Capa
11.	Make up	Componer/Construir
12.	Outside	Fuera
13.	Shape	Forma
14.	Store	Tienda
15.	Strength	Fuerza
16.	Substance	Sustancia
17.	Surround	Rodear
18	Model	Maqueta
19	Recyclable	Reciclable
20	Creative	Creativo

Lesson plan n° 2 – English version

Lesson plan n° 2 – Spanish version

Let's learn about: Eukaryotic cell

Eukaryotic cells are the most modern major cell type. All multicellular organisms including you, your pet and the plants, have eukaryotic cells.

 

Eukaryotic cells usually have more than one chromosome which contains large amounts of genetic information.

 

All eukaryotic cells have

A nucleus
Mitochondria
Golgi body
Vesicles
Endoplasmic Reticulum

                                                                                                   

 There are two types of eukaryotic cells: animal and plant cells which can reproduce sexually or asexually.

 

A nucleus: This contains genetic material (DNA), and controls the cell's activity.
Cell Membrane: A flexible layer that surrounds the cell and controls the substances that enter and exit.
Cytoplasm: A jelly-like substances where the chemical reactions happen.
Mitochondria: This is where energy is released from the food moecules.

 

Plants are also made up of millions of cells which have a nucleus, cell membrane, cytoplasm and mitochondria too, but they also contain the following structures:

Cell wall – A hard layer outside the cell membrane, containing cellulose to provide strength to the plant.
Vacuole – A space inside the cell that is used to store substances and help the cell keep its shape.
Chloroplasts – Structures that contain the green pigment chlorophyll, which is a key part of photosynthesis.

 

Let's watch the following video!

Let's parctice! 

Activity n°1

Find the words related to the topic about the eukaryotic cell in the following word search.

Activity n°2

Complete the following text.

Printed version activities