Topic 1 - Plant Cell Orgnalles

Question 1

Vacuole

Answer 1

This is any fluid filled space in the cell with a membrane. is permanent in plant cells and it’s filled with cell sap

Important in keeping osmosis in the cell and keeping the cell turgid so the plant remains upright

Used as a storage vessel

Question 2

chloroplast

Answer 2

Hello plant cells to make their own food by carrying out photosynthesis

Large 
contains DNA 
surrounded by an outer membrane 
inner membrane is folded 
they also contain chlorophyll traps the suns energy and ribosomes

Question 3

Amyloplasts

Answer 3

Also known as Starch grain

these are organelles that are used to store Amylopectin a form of starch

Question 4

Cell wall

Answer 4

Gives the cell shape and support

Made up of starch called Cellulose
Cellulose forms long straight chains rather than spirals like amylose

Cellulose forms microfibrils held together by glue like carbohydrates

This makes material of the cell wall which is flexible

When the cell is turgid it supports the wall making the plant stand upright

When cells are flaccid the plant wilts

Question 5

Plasmodermata

Answer 5

Small gaps between cells which they can communicate

They are threads of cytoplasm that connect the cells to each other passing signalling substances between them

Interconnected cytoplasm is called symplast