Textbook Organelles

Question 1

motility structure present

Answer 1

flagellum

Question 2

composed of a cluster of microtubules

Answer 2

flagellum

Question 3

an
extension of the plasma
membrane

Answer 3

flagellum

Question 4

region where the cell’s microtubules are initiated

Answer 4

Centrosome

Question 5

contains a
pair of centrioles

Answer 5

Centrosome

Question 6

reinforces cell’s shape

Answer 6

Cytoskeleton

Question 7

components are made of
protein

Answer 7

Cytoskeleton

Question 8

functions in cell movement

Answer 8

Cytoskeleton

Question 9

membrane projections that
increase the cell’s
surface area

Answer 9

Microvilli

Question 10

organelle with various specialized metabolic functions

Answer 10

peroxisome

Question 11

produces hydrogen peroxide as a by-product and
then converts it to water

Answer 11

peroxisome

Question 12

where cellular respiration occurs and
most ATP is generated

Answer 12

mitochondria

Question 13

digestive organelle where macromolecules are
hydrolyzed

Answer 13

lysosome

Question 14

organelle active in synthesis, modification, sorting,
and secretion of cell products

Answer 14

golgi apparatus

Question 15

complexes that make proteins

Answer 15

ribosomes

Question 16

free in cytosol or bound to rough ER or nuclear
envelope

Answer 16

ribosomes

Question 17

membrane
enclosing the cell

Answer 17

plasma membrane

Question 18

involved in production
of ribosomes

Answer 18

nucleolus

Question 19

active in membrane synthesis and other synthetic and metabolic processes

Answer 19

endoplastic reticulum

Question 20

outer layer that maintains cell’s shape and protects cell from mechanical damage

Answer 20

cell wall

Question 21

made of cellulose

Answer 21

cell wall

Question 22

cytoplasmic channels through cell walls that connect the cytoplasms
of adjacent cells

Answer 22

plasmodesmata

Question 23

photosynthetic organelle

Answer 23

Chloroplast

Question 24

converts energy of sunlight to chemical energy
stored in sugar molecules

Answer 24

chloroplast

Question 25

prominent organelle in older plant cells

Answer 25

central vacuole

Question 26

functions include storage, breakdown of waste products, and hydrolysis of macromolecules

Answer 26

central vacuole

Question 27

enlargement of the vacuole is a major mechanism of plant growth

Answer 27

central vacuole