Anatomy - Cell components

Question 1

supports organelles and cell shape and plays a role in cell motion

Answer 1

cytoskeleton

Question 2

tube of protein molecules present in cytoplasm, centrioles, cilia, and flagella

Answer 2

microtubule

Question 3

intertwined protein fibers that provide support and strength

Answer 3

intermediate filament

Question 4

twisted protein fibers that are responsible for cell movement

Answer 4

actin filament

Question 5

complex assembly of microtubules that occurs in pairs

Answer 5

centriole

Question 6

semifluid matrix that contains the nucleus and other organelles

Answer 6

cytoplasm

Question 7

organelle in which energy is extracted from food during oxidative metabolism

Answer 7

mitochondrion

Question 8

vesicle fusing with the plasma membrane, releasing materials to be secreted from the cell

Answer 8

secretory vesicle

Question 9

system of internal membranes that aids in the manufacture of carbohydrates and lipids

Answer 9

smooth ER

Question 10

internal membranes studded with ribosomes that carry out protein synthesis

Answer 10

rough ER

Question 11

command center of the cell

Answer 11

nucleus

Question 12

site where ribosomes are produced

Answer 12

nucleolus

Question 13

double membrane between the nucleus and cytoplasm

Answer 13

nuclear envelope

Question 14

opening embedded with proteins that regulate passage into and out of the nucleus

Answer 14

nuclear pore

Question 15

small complexes of RNA and protein that are the sites of protein synthesis

Answer 15

ribosomes

Question 16

vesicle that contains enzymes that carry out particular reactions such as detoxifying potentially harmful molecules

Answer 16

peroxisome

Question 17

colelcts, packages, and distributes molecules manufactured in the cell

Answer 17

golgi complex

Question 18

lipid bilayer in which proteins are embedded

Answer 18

plasma membrane

Question 19

vesicle that breaks down macromolecules and digests worn out cell components

Answer 19

lysosome