cells module 2

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CELLS: PLANTS and ANIMALS

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Page 1: Cells module 2

CELLS: PLANTS and

ANIMALS

Page 2: Cells module 2

Are all cells the same?

If not, what ways are they different?

Page 3: Cells module 2

COMPARING PLANT AND ANIMAL CELL

Page 4: Cells module 2

CONSTRUCT A VENN DIAGRAM TO ANSWER THE FF.

Compare the shape of a plant cell with that of an animal cell.

Which cell parts are found in both cells?

Page 5: Cells module 2

Which are present only in animal cells?

Which are present only in plant cells?

Page 6: Cells module 2

DIFFERENCES BETWEEN PLANT AND ANIMAL CELLS:

Plant and animal cells differ in shape and in some parts. Plant cells are rectangular or angular or rigid in shape, while animal cells are rounded and somewhat irregular.

Page 7: Cells module 2

Plant cells have cell walls and chloroplasts which animal cells do not have. Animal cells have centrioles which plant cells do not have.

Page 8: Cells module 2

SIMILARITY BETWEEN PLANT AND ANIMAL CELLS:

Both plant and have animal cells have common parts namely: the nucleus, plasma membrane, cytoplasm, the mitochondrion, rough and smooth endoplasmic reticulum, Golgi body, vacuole/vesicle and lysosome.

Page 9: Cells module 2

Watch the video clips about the cells.

Page 10: Cells module 2

PARTS OF CELLS:

Cells can be of different kinds, plant or animal cells, bacteria, amoeba cells, etc.

The nucleus, plasma membrane and cytoplasm, the basic parts of the cell.

Page 11: Cells module 2

The nucleus serves as the control center of the cell. The plasma membrane is also called the cell membrane. It is semipermeable because it permits some substances but prevents others to pass through it.

Page 12: Cells module 2

Cytoplasm- cell material excluding nucleus: Cytoplasm contains the cytosol, organelles, vesicles, and cytoskeleton.

Page 13: Cells module 2

What do you think will happen to the cell if the plasma membrane does not function properly?

Page 14: Cells module 2

The cell wall and the chloroplasts, are the plant cell parts which distinguishes from the animal cell. Cell walls form the outer boundary of plant cells and are made of cellulose a tough material. Thus, cell walls serve as protective barrier. Fungi, algae, and bacteria also have cell walls.

Page 15: Cells module 2

What is the purpose of the cell wall in plants?

Why do you think there are several chloroplasts in the plant cell?

Page 16: Cells module 2

Vacuoles are easily seen in plant cells because of their size. Since water also collects in the vacuoles, it pushes out into the cell wall producing turgor pressure. This turgor pressure maintains crispness of fresh vegetables.

In animals vacuoles are smaller and are called by biologists as vesicles.

Page 17: Cells module 2

Lysosomes although rare are also found in plant cells. If animal cells have these parts to digest or breakdown unneeded or trash materials, then plant cells must have a part that can do this for them. Some biologists refer to them as plant lysosomes or the small vacuoles in plant cells.

Page 18: Cells module 2

How would vacuoles in plants serve as defense against animals that eat them?

Page 19: Cells module 2

The centrioles which can be found in animal cells only, are located near the nucleus. They help organize structures during cell division.

Page 20: Cells module 2

OTHER PARTS OF THE CELLS:

Mitochondrion- converts energy in food to a form usable to the cell;

Golgi body – sort, modify, package and distribute cell products to where they are needed;

Page 21: Cells module 2

Endoplasmic reticulum(ER) – carry proteins to different parts of the cell;

Rough ER – with attached ribosomes that manufacture proteins

Smooth ER – contains no ribosomes; makes lipids(fats)

Page 22: Cells module 2