Plant Organelles

HideShow resource information
Definition: Cell Wall
A rigid structure that surrounds plant cells. It's mainly made of the carbohydrate cellulose.
1 of 16
Function: Cell Wall
Supports plant cells.
2 of 16
Definition: Middle Lamella
The outermost layer of the cell.
3 of 16
Function: Middle Lamella
This layer acts as an adhesive, sticking adjacent plant cells together. It gives the plant stability.
4 of 16
Definition: Plasmodesmata
Channels in the cell walls that link adjacent cells together.
5 of 16
Function: Plasmodesmata
Allow transport of substances and communication between cells.
6 of 16
Definition: Pits
Regions of the cell wall where the wall is very thin. They're arranged in pairs - the pit in one cell is lined up with the pit in the adjacent cell.
7 of 16
Function: Pits
Allow transport of substances between cells.
8 of 16
Definition: Chloroplast
A small, flattened structure surrounded by a double membrane. It contains thylakoid membranes, which are stacked up in some parts of the chloroplast to form grana. Grana are linked together by lamellae - thin flat pieces of thylakoid membrane.
9 of 16
Function: Chloroplast
The site where photosynthesis takes place. Some parts of photosynthesis happen in the grana, and other parts happen in the stroma (a thick fluid found in chloroplasts).
10 of 16
Definition: Amyloplast
A small organelle enclosed by a membrane. They contain starch granules.
11 of 16
Function: Amyloplast
They store starch grains, and also convert starch back to glucose for release when the plant requires it.
12 of 16
Definition: Tonoplast
A membrane that surrounds the vacuole.
13 of 16
Function: Tonoplast
Controls what enters and leaves the vacuole.
14 of 16
Definition: Vacuole
A compartment surrounded by the tonoplast.
15 of 16
Function: Vacuole
Contains the cell sap, which is made up of water, enzymes, minerals and waste products. Vacuoles keep the cells turgid - this stops plants wilting. They're also involves in the breakdown and isolation of unwanted chemicals in the cell.
16 of 16

Other cards in this set

Card 2

Front

Supports plant cells.

Back

Function: Cell Wall

Card 3

Front

The outermost layer of the cell.

Back

Preview of the back of card 3

Card 4

Front

This layer acts as an adhesive, sticking adjacent plant cells together. It gives the plant stability.

Back

Preview of the back of card 4

Card 5

Front

Channels in the cell walls that link adjacent cells together.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Human, animal and plant physiology resources »