Organelles

Question 1

Nucleus

Answer 1

Carries the DNA code for amino acid sequences which codes for proteinsynthesis

Question 2

Nucleolus

Answer 2

Synthesis of ribosomes and rRNA

Question 3

Nuclear Pore

Answer 3

Allows the movement of mRNA out of the nucleus

Question 4

Nuclear Envelope

Answer 4

Separate the genetic material from the cytoplasm

Question 5

Cell Membrane

Answer 5

Selectively permeable and controls the movement of substances in and out of the cell

Question 6

Cytoplasm

Answer 6

Fills the cell and contains the organelles. Has lots of enzymes so site of most cellular reactions

Question 7

Mitochondria

Answer 7

The site of aerobic respiration to release energy in the form of ATP

Question 8

Rough Endoplasmic Reticulum

Answer 8

Transports proteins synthesised on attached ribosomes

Question 9

Smooth Endoplasmic Reticulum

Answer 9

The synthesis and transport of lipids

Question 10

Golgi Body

Answer 10

• The modification and packaging of proteins (into vesicles, some for exocytosis)
• Transporting and storing lipids
• Forming lysosomes

Question 11

Centrioles

Answer 11

Used in spindle formation (microtubules) in cell division. ONLY IN ANIMAL CELLS

Question 12

Ribosomes

Answer 12

Protein synthesis

Question 13

Lysosomes

Answer 13

Contain and isolate digestive enzymes (eg. in white blood cells after phagocytosis, used to digest bacterium)

Question 14

Vesicles

Answer 14

•Act as a contractive vacuole to maintain osmotic pressure
•To transport stuff
ONLY IN ANIMAL CELLS

Question 15

Large Permanent Vacuole

Answer 15

•Storage of ions and organic molecules
•Maintain osmotic pressure
ONLY IN PLANT CELLS

Question 16

Chloroplast

Answer 16

Site of photosynthesis (contain thylakoids)

ONLY IN PLANT CELLS

Question 17

Cell Wall

Answer 17

To provide strength and support

Question 18

Plasmodesmata

Answer 18

• Exchange of large organic materials via cytoplasmic streaming
• Allows communication between 2 adjacent cells