Ultrastructure of Plant Cells

Name all these structures from 1-6

1. Nucleolus

2. Nucleus

3. Mitochondria

4. Chloroplast

5. Vacuole

6. Cell wall

Label this tonoplast

1. Tonoplast

2. Cell sap

3. Central vacuole

What is the purpose of the vacuole?

• keeps the cell turgid/prevents plant wilting

• breaks down and isolates unwanted chemicals

• controls what can enter and leave

Label these structures from 1-11

1. Starch granule

2. Granum

3. Lamella

4. Thylakoid

5. Ribosome

6. Stroma

7. Drop of lipids

8. Inner membrane

9. Intermembrane space

10. Outer membrane

11. Chloroplast DNA

What are pits and what are their purpose?

very thin regions of the cell wall which facilitates transport of substances between other plant cells

Label this Amyloplast from 1-2

1. Starch grain

2. membrane

What is an Amyloplast and its purpose?

Stores starch granules and converts it to glucose for energy if needed

What is the plasmodesmata and its purpose?

connects the cytoplasm of neighbouring plants cell allowing transport and cell communication

What is the middle lamella and its purpose

Allows adjacent plants to stick together providing stability