Cell organelles and their functions

Question 1

Cell membrane:

Answer 1

Every cell is considered a membrane. The cell membrane is the part that protects from the water being uncontrolled. The membrane is made up of important proteins.

Question 2

Cytoskeleton:

Answer 2

• Helps maintain cell shape
• Cell motility
• Cell locomotion & muscle fiber contraction
• Three main protein filaments: Microtubules, Actin filaments, intermediate fibers

Question 3

Nucleus:

Answer 3

• Contains DNA

- Nucleolus produces ribosomes

Question 4

Ribosomes:

Answer 4

• Ribosomes are packets of RNA and protein

Question 5

Smooth endoplasmic Reticulum:

Answer 5

• Network of membrane- bound vesicles and tubules called the edoplasmic reticulum
• Plays different functions depending on the specific cell type including lipid and steroid hormone synthesis, breakdown of lipid-soluble toxins in liver cells, and control of calcium release in muscle cell contraction.

Question 6

Rough Endoplasmic Reticulum:

Answer 6

• Proteins synthesized on these ribosomes collect in the endoplasmic reticulum for transport throughout the cell.

Question 7

Golgi Apparatus:

Answer 7

• Membrane- bound structure with a single membrane

- membrane-bound vesicles that are important in packaging macromolecules for transport everywhere else in the cell

Question 8

Mitochondrion:

Answer 8

• Mitochondria gives the energy a cell needs to move, divide, produce secretory products, contract – in short, they are the power centers of the cell