LO: I can recap my learning of cells to prepare for Bacc Exam What is a cell? Starter: What do you think this photo is of?

What is a cell? What is a cell? A cell is the very smallest unit of living matter. All living things, including plants and animals, are made up of cells.

What is a cell? What is a cell? There are many different kinds of cells, doing many different jobs in a plant or animal.

Animal and Plant Cells Animal and plant cells

Cell Membrane Cell membrane One part found in all cells is the cell membrane. The cell membrane surrounds the cell and holds the cell together. It controls what chemicals can enter and leave the cell.

Nucleus Nucleus Another part found in all cells is the nucleus. The nucleus controls the cell. Inside the nucleus is DNA which contains genetic information.

Cytoplasm Cytoplasm All cells also contain cytoplasm. Cytoplasm is a jelly-like mixture of chemicals where most of the work of the cell takes place

Parts of a Plant Cell Plant cell parts Plant cells may contain some extra parts.

Chloroplasts (plant cells) Chloroplasts which are disc shaped and contain chlorophyll for photosynthesis.

Cell wall (plant cells) A cell wall which is a strong outer layer to support the cell and give it shape.

Vacuole Vacuole (plant cells) A vacuole where the plant cell stores sap (the food that it has made; a mixture of sugars, salts and water).

In reality …. More complicated! Most cells are much more complicated than this!

Then grab a whiteboard and come round the front Check your Learning! Cytoplasm Draw the two cells. Name all the parts and state what their function is in a cell. Then grab a whiteboard and come round the front

Which one is the nucleus? A Which one is the nucleus? B C D E F

Which one is a chloroplast? B C D E F

Which one is the vacuole? B C D E F

Which one is the cytoplasm? B C D E F

Which one is the cell wall? B C D E F

Which one is the cell surface membrane? D E F

Which one absorbs light for photosynthesis? D E F

Which one is the cell surface membrane?

Which one is the nucleus? B C Which one is the nucleus? A

Which one is the cytoplasm? B C Which one is the cytoplasm? A

Now write down the bits that are only found in plant cells A: Chloroplast D: Cell surface membrane B: Nucleus E: Cell wall C: Vacuole F: Cytoplasm

Now write down the bits that are found in plant and animal cells A: Chloroplast D: Cell surface membrane B: Nucleus E: Cell wall C: Vacuole F: Cytoplasm

Specialised... Specialised Cells Q: What does specialised mean?? A: Something that is designed to do a particular job

Specialised... Specialised Cells Q: What is a specialised cell? A: A cell that has a special shape and features that help it to do it’s job

Red blood cells Your Task Stuck round the room are some information sheets about different specialised animal and plant cells…. Your job is to extract the important information from the sheets to fill in on your worksheets

Comparing Animal Cells Animal and plant cells Cell surface membrane Cytoplasm Nucleus

Chloroplasts (plant cells) Comparing Plant Cells Chloroplasts (plant cells)