Parts of a Cell

Question 1

Plasma Membrane

Answer 1

Structure: a double layer of lipids(phospholipids, cholesterol, etc) containing proteins within it

Function: an external barrier that transports substances into and out of the cell

Question 2

Cytoplasm

Answer 2

Structure: a dense, compact liquid

Function: to hold the organelles within a cell

Question 3

Mitochondria

Answer 3

Function: Site of ATP synthesis

Question 4

Ribosomes

Answer 4

Function: site of protein synthesis

Question 5

Rough Endoplasmic Reticulum

Answer 5

Function: protein synthesis, as the ribosomes are located on it

Question 6

Smooth Endoplasmic Reticulum

Answer 6

Function: produces and metabolizes fats and steroid hormones

Question 7

Golgi Apparatus

Answer 7

Function: packages and transports proteins

Question 8

Peroxisomes

Answer 8

Function: breaks down toxic substances in the cell

Question 9

Lysosomes

Answer 9

Function: digestive system of the cell

Question 10

Microtubules

Answer 10

Function: supports the cell and gives it shape

Question 11

Microfilaments

Answer 11

Function: involved in muscle contraction and other intracellular movement

Question 12

Intermediate filaments

Answer 12

Function: resists mechanical forces acting on the cell

Question 13

Centrioles

Answer 13

Function: a microtubule network used during mitosis

Question 14

Cilia

Answer 14

Function: coordinate movement to create a unidirectional current to propel substances across the cells surface

Question 15

Flagellum

Answer 15

Function: propel the cell

Question 16

Microvilli

Answer 16

Function: increase surface area for absorption

Question 17

Nucleus

Answer 17

Function: control center of the cell

Question 18

Nuclear envelope

Answer 18

Function: regulates passage of substances to and from the nucleus

Question 19

Nucleolus

Answer 19

Function: site of ribosome subunit manufacture

Question 20

Chromatin

Answer 20

Function: DNA that constitutes the genes