Cells

Question 1

Structure and function of nucleus

Answer 1

Double membrane structure with nuclear envelope
Contains dna in chromatin
Controls cells activities and genetic material

Question 2

Structure and function of nucleolus

Answer 2

Dense and dark region within nucleus
Makes ribosomes

Question 3

Stcrure and function of ribosomes

Answer 3

80s in eukaryotes 70s in prokaryotes
Free roaming or attached to rear
For protein synthesis

Question 4

Structure and function of rear

Answer 4

Ribosomes on its surface
Membrane bound
Modifies and transports proteins

Question 5

Structure and function of ser

Answer 5

No ribosomes
Synthesises lipids and steroids

Question 6

Stcrure and function of Golgi apparatus

Answer 6

Stack of flattened sacks
Processes, modifies and packages lipids and proteins

Question 7

Structure and function of mitochondria

Answer 7

Double membrane structure with inner membrane folded into cristae
Site of aerobic respiration , where atp is produced

Question 8

Structure and function of chloroplasts

Answer 8

Double membrane Stcrure with grana/ thylakoids
Site of photosynthesis

Question 9

Structure and function of lysosomes

Answer 9

Vesicles containing digestive enzymes
Break down waste, pathogens and old organelles

Question 10

Structure and function of the cell membrane

Answer 10

Phospholipid bilayer with proteins
Controls the entry/exit of substances

Question 11

Structure and function of the cell wall in plants

Answer 11

Made of cellulose
Provides strength and support

Question 12

Structure and function of vacuole in plants

Answer 12

Membrane bound sac with cell sap
Maintains turgidity
Stores nutrients

Question 13

Structure and function of centrioles

Answer 13

Cylindrical structures
Involved in spindle formation during mitosis

Question 14

What is the cell wall made out of in prokaryotes

Answer 14

Peptidoglycan