First bimester – Science

Did you remember what we saw in this bimester? NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image.

A: Eukaryotic cell B: prokaryotic cell

1.______ cells make up eukaryotes. You are a eukaryote, as are plants and some types of single-celled organisms. All 2._____organisms, or organisms that have many 3._____, are eukaryotes 1.Ukryoictae 2. letrmullulaic 3.lecls Now organize these letters For completing the gaps in the text

1. ______cells make up organisms called prokaryotes. All prokaryotes are tiny and consist of 2._______cells. 3._______are prokaryotic cells. Organize these words and you will find the answer. 1.Articpoykor 2.Nglise 3.riaetacb

NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image. The cell perpetuates itself.

NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image. It´s responsible of the main organisms´ characteristics.

NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image. The cell contains genetic information.

The invention of the microscope in the late 1500s revealed to early scientists a whole new world of tiny cells. Most cells are so small that they cannot be seen without a microscope.

Nucleus: Is the cell control´s assistant, it doesn’t control any activities. It is very important in cell reproduction.

Mitochondria It releases energy from alcohol. It converts energy stored in garbage.

Cytoplasm It is the jelly like substance that contains water to stop the cell functioning. It contains sugars, salts, proteins and aminoacids.

Vacuole It stores food, water and wastes. It is filled with a liquid that contains various poisonous substances.

Lysosome It contains enzymes that help in the excretion of nutrients and gases.

Now check this video about the cell´s history 9DU 9DU NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image.

NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image.

NOTE: To change images on this slide, select a picture and delete it. Then click the Insert Picture icon in the placeholder to insert your own image.

ANIMAL CELLPLANT CELL

IT´S ________________ Boundary of the cell Made of a phospholipid bilayer

It´s __________ Controls center of the cell Contains DNA Surrounded by a double membrane Usually the easiest organelle to see under a microscope Usually one per cell Contains Chromosomes Nucleolus

It´s_______________ Acts as skeleton and muscle Provides shape and structure Helps move organelles around the cell Made of three types of filaments

It´s _____________________ Connected to nuclear membrane Highway of the cell Rough ER: studded with ribosomes; it makes proteins Smooth ER: no ribosomes; it makes lipids

It´s_____________ Site of protein synthesis Found attached to rough ER or floating free in cytosol Produced in a part of the nucleus called the nucleolus That looks familiar…what is a polypeptide?

It´s ________________ Looks like a stack of plates Stores, modifies and packages proteins Molecules transported to and from the Golgi by means of vesicles

It´s______________  Garbage disposal of the cell  Contain digestive enzymes that break down wastes

It´s ______________ “Powerhouse of the cell” Cellular respiration occurs here to release energy for the cell to use Bound by a double membrane Has its own strand of DNA

It´s ___________ Found in plant and bacterial cells Rigid, protective barrier Located outside of the cell membrane Made of cellulose (fiber)

It´s_________________ Large central vacuole usually in plant cells Many smaller vacuoles in animal cells Storage container for water, food, enzymes, wastes, pigments, etc.

It´s___________  Aids in cell division  Usually found only in animal cells  Made of microtubules

One Name, Many Types There are many types of cells. In biology class, you will usually work with plant-like cells and animal-like cells. We say animal-like because an animal type of cell could be anything from a tiny microorganism to a nerve cell in your brain. Plant cells are easier to identify because they have a protective structure called a cell wall made of cellulose. Plants have the wall; animals do not. Plants also have organelles like the chloroplast (the things that make them green) or large water-filled vacuoles. microorganismcell wallchloroplastvacuoles

We said that there are many types of cells. Cells are unique to each type of organism. Humans may have hundreds of types of cells. Some cells are used to carry oxygen (O 2 ) through the blood (red blood cells) and others might be specific to the heart. If you look at very simple organisms, you will discover cells that have no defined nucleus (prokaryotes) and other cells that have hundreds of nuclei (multinucleated). The thing they all have in common is that they are compartments surrounded by some type of membrane.Humansprokaryotesmembrane

Related to the last article can you say if these sentences corresponding to them? Are they related? True? False? In biology class, you will usually work with plant- like cells and animal- like cells. A B C Plant cells are easier to identify because they don´t have a defense structure called a cell grille made of gelatine. Plants also have organelles like the chloroplast (the things that make them green) or large water- filled vacuoles. Humans may have 125 of types of cells. Some cells are used to carry oxygen (O 2 ) through the blood (green blood cells) D E They all have in common is that they are compartments surrounded by some type of membrane.

Now, did you remeember the diseases related to cells? Cancer, was it? Yes, it was….but you know the latest news related to that? Pay attention to this video!!!

Now we are going to go beyond!! Let´s read this article!!! leases/2014/03/ ht m

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