Seven Cell Organelles

Question 1

Cell Membrane

Answer 1

A). Semipermeable bilayer of lipid molecules

B). Controls transportation of materials into and out of the cell

Question 2

Nucleus

Answer 2

A). Spherical, double membrane-bound organelle containing chromatin (DNA) and nucleoli (RNA)

B). Controls the synthesis of proteins which give the cell specific abilities. Also contains genetic material for passage to offspring.

Question 3

Endoplasmic Reticulum

Answer 3

A). Double-layered network of membranous channels extending throughout the cytoplasm

   1) . Rough: Ribosomes
   2) . Smooth: No Ribosomes

B). Rough E.R. : Modification and packaging of newly synthesized proteins
Smooth E.R. : Lipid, steroid, and carbohydrate synthesis; Calcium ion storage

Question 4

Golgi Complex:

Answer 4

A). Flattened stacks of membranous sacs

B). Secrete proteins to the outside of the cell and may form lysosomes internally.

Question 5

Mitochondria

Answer 5

A). Rod-shaped double membrane, with inner membrane folds enclosing metabolic enzymes.

B). Produce 95% of the ATP required to power the cell

Question 6

Lysosomes

Answer 6

A). Rounded, membrane bound containers filled with digestive enzymes

B). Intracellular removal of damaged organelles or of pathogens.

Question 7

Microtubules

Answer 7

A). 9+3 array of straight, bundled, hollow tubules.

B). -Serve as internal support or transport channels within the cell.
-Form cilia and mitotic spindles.