Parts Of A Cell

Question 0

endoplasmic reticulum (ER)

Answer 0

network of thin folded membranes that help produce proteins and lipids; two kinds of ER: smooth and rough

Question 1

Nucleus

Answer 1

double membrane layer that stores and protects DNA; includes the nucleolus, a dense region where ribosomes are assembled.

Question 2

Ribosomes

Answer 2

tiny round organelles that link amino acids together to form proteins; may be in the cytoplasm or on the ER, which makes it look rough

Question 3

Golgi apparatus

Answer 3

stacked layers of membranes that sort, package, and deliver proteins

Question 4

Vesicles

Answer 4

little sacs that carry different molecules where they’re needed; made and broken down as needed by the cell

Question 5

Mitochondria

Answer 5

bean-shaped organelles that release energy from sugars for the cell

Question 6

centrioles

Answer 6

found in animal cells; organize microtubules to form cilia and flagella

Question 7

Vacuoles

Answer 7

sacs that store materials for the cell; the materials might be water, food molecules, ions, and enzymes

Question 8

Cell walls

Answer 8

strong layer that protects, supports, and gives shape to plant cells; not found in animal cells

Question 9

Chloroplasts

Answer 9

change energy from the sun into chemical energy for the plant; not found in animal cells

Question 10

Cytoplasm

Answer 10

jellylike substance that fills a cell

Question 11

Cell membrane

Answer 11

double-layer of phospholipids that forms a boundary between a cell and its surrounding environment

Question 12

Lysosomes

Answer 12

membrane-bound organelles that contain enzymes