Organelles in a cell

Question 1

Ribosome

Answer 1

Site of protein synthesis (mRNA -> amino acids).

Question 2

Nuclear envelope

Answer 2

Double membrane surrounding the nucleus containing nuclear pores to allow substances in and out.

Question 3

Cytoskeleton

Answer 3

A network of protein fibres that maintain and stabilise the cell’s shape.

Question 4

Nucleus

Answer 4

Largest organelle in a cell and contains the genetic material (chromatin) of the cell.

Question 5

Cell membrane

Answer 5

Known as the phospholipid bilayer and is responsible for the control of substances moving in and out of the cell.

Question 6

Smooth endoplasmic reticulum

Answer 6

Involved in the production of lipids. No ribosomes present.

Question 7

Flagella/cilia

Answer 7

Hair-like extensions that can move.

Question 8

Nucleolus

Answer 8

Makes RNA and ribosomes and sends them to the cytoplasm.

Question 9

Mitochondria

Answer 9

Site of respiration and production of ATP. Contains the cristae (folded membrane) and the matrix (fluid).

Question 10

Centrioles

Answer 10

Protein fibres involved in cell division and the production of spindle fibres.

Question 11

Rough endoplasmic reticulum

Answer 11

Covered in ribosomes and involved in protein synthesis then their transport.

Question 12

Golgi apparatus

Answer 12

Modifies and packages proteins. Then places them into vesicles for transportation.

Question 13

Chloroplast

Answer 13

Site of photosynthesis (light energy into chemical energy). Contains grana, thylakoids and stroma.

Question 14

Vacuole

Answer 14

Large organelle used to maintain cell stability. Filled with fluid and other storage materials to help support the cell

Question 15

Lysosome

Answer 15

Small sacs in the cytoplasm that contain enzymes for breaking down substances.

Question 16

Cell wall

Answer 16

Made of strands of cellulose that create a rigidity
to help support the cell.