Cell Organelles

Question 1

What is the function of the NUCLEUS?

Answer 1

Holds nuclear material, contains DNA as chromatin for genetic coding of the cell. Controls all activity of the cell

Question 2

What is the function of the NUCLEOLOUS

Answer 2

Ribosome synthesis

Question 3

Where is DNA stored in the cell?

Answer 3

Nucleus

Question 4

What is the function of the MITOCHONDRIA?

Answer 4

To make ATP through aerobic respiration. It is the powerhouse of the cell that provides chemical energy for all other cell processes.

Question 5

What is the function of the ROUGH ENDOPLASMIC RETICULUM?

Answer 5

Isolates, keeps together, and transports newly synthesised proteins from the ribosomes to stop them floating away in cytoplasm. It also stores enzymes and proteins. Main function is packaging in protein synthesis.

Question 6

What is the function of the SMOOTH ENDOPLASMIC RETICULUM?

Answer 6

To help synthesise some lipids and steroids; detoxify organic molecules and help store calcium in skeletal muscles.

Question 7

What is the function of the RIBOSOMES?

Answer 7

Protein synthesis. They assemble amino acids in correct order to produce new proteins using code on mRNA

Question 8

What is the function of the GOLGI BODY?

Answer 8

Modifies and synthesises proteins, lipids and carbohydrates. After ribosomes attach to E.R and are packed into vesicles, some vesicles join w/ Golgi body and are modified then secreted out of cell - THE CELL POST OFFICE

Question 9

What is the Golgi body also known as?

Answer 9

The Post Office of the cell

Question 10

What is the function of the LYSOSOME?

Answer 10

Digests unwanted material through phagocytosis – old cells, bacterium, destroy surplus organelles (example is removing uterus tissue after birth/ menstruation)

Question 11

What is the function of the CHLOROPLAST

Answer 11

Photosynthesis

Question 12

what is the function of the VACUOLE?

Answer 12

Stores salts, sugars, pigment – creates turgid pressure in plants by interacting with cell wall for structural support. Absorb water via osmosis.

Question 13

What is the function of the CELL WALL?

Answer 13

Provides rigidity and strength for plant cells. Force cells to grow in a certain way/ shape – fibrils arrangements make certain shapes.

Question 14

What is the function of the PLASMA MEMBRANE?

Answer 14

To protect the cell. To transport toxic substances out and nutrients in. The membrane allows the cell to interact with other cells through proteins.

Question 15

Function of the CYTOPLASM?

Answer 15

Holds/ suspends all organelles in place. It is also the location of protein synthesis and glycolysis - chemical reactions of cellular processes.

Question 16

Where is the rough E.R found?

Answer 16

Continuous network throughout cytoplasm, usually attached to nuclear envelope

Question 17

Where is the smooth E.R found?

Answer 17

next to the rough E.R. Doesn’t have ribosomes.

Question 18

Where is Golgi body found in cell?

Answer 18

In tightly packed groups throughout the cytoplasm

Question 19

What is the process used by lysosomes to digest unwanted material?

Answer 19

Phagocytosis

Question 20

Give an example when phagocytosis would be needed

Answer 20

To get rid of uterine tissue during menstruation