Organelle description

Question 1

Nucleus structure

Answer 1

Large organelle enclosed by a membrane envelope and has pores. Contais chromosones

Question 2

Ribosome Structure

Answer 2

Very Smallorganelle not bounded by a membrane. Made of protein and RNA

Question 3

Golgi body structure

Answer 3

Stack of membrane bounded sacks in the cytoplams

Question 4

Cellwall structure

Answer 4

Provides mechanical support and protection. Prevents the cell from bursting

Question 5

Centriloe structure

Answer 5

A pair of short cylinders. Each cylinder id made up of nine fibres

Question 6

Vacuole structure

Answer 6

A sac bounded by a single membrane. Contais a cellsap which is a mix of sals and other subtances

Question 7

Mitocondria structure

Answer 7

Has an outer membrane and an inner one which is folded to form cristae. Inside the inner membrane is the matrix containg enzymes, a circular DNA molecule and ribosomes

Question 8

Chloroplast structure

Answer 8

Surronded by two membrances. Contains a matrix called stroma which has a system of membranes running through it. These are stacked in places to form grana containing chlorophyll. Storma contains circular DNA, ribosomes and starch grains

Question 9

Lysosome structure

Answer 9

A vessicle containing digestive enzymes

Question 10

Rough ER

Answer 10

A complex netwolrk of flattened, membrane bound sacs called cristeerane. Has ribosomes on the cytoplamsic side