Ch 3: Structures and Organelles

Question 1

Cell Membrane

Answer 1

The outside living boundary of all living cells.

A thin layer covering around the cell that is semipermeable or selectively permeable (the cell gateway).

Question 2

Cytoplasm

Answer 2

Colorless, jelly-like fluid.

Makes up most of the cell and contains many different structures which carry out the work of cell metabolism.

Question 3

Nucleus

Answer 3

The control center of the cell controlling all activities such as growth, repair, reproduction, etc. (The cell controller)

Question 4

Ribosomes

Answer 4

Sites for protein synthesis

Question 5

Mitochondria

Answer 5

The power plant of the cell which produces energy in the form of ATP (adenosine triphosphate)

Question 6

Cilia

Answer 6

Hair-like projections which produce movement within a given area.

Question 7

Flagellum

Answer 7

Long, whip-like structures which cause a cell to be motile.

Question 8

What are the two main structures of a cell?

Answer 8

• Cell membrane

- Cytoplasm

Question 9

What are the five organelles within a cell?

Answer 9

• Nucleus
• Ribosomes
• Mitochondria
• Cilia
• Flagellum